./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.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_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 895331ee792cb4570cc9dc952fbc5a33a57f2c1f ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 895331ee792cb4570cc9dc952fbc5a33a57f2c1f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:26:58,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:26:58,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:26:58,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:26:58,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:26:58,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:26:58,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:26:58,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:26:58,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:26:58,348 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:26:58,349 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:26:58,349 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:26:58,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:26:58,350 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:26:58,351 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:26:58,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:26:58,352 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:26:58,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:26:58,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:26:58,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:26:58,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:26:58,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:26:58,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:26:58,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:26:58,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:26:58,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:26:58,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:26:58,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:26:58,361 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:26:58,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:26:58,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:26:58,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:26:58,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:26:58,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:26:58,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:26:58,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:26:58,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:26:58,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:26:58,374 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:26:58,375 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:26:58,375 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:26:58,375 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:26:58,375 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:26:58,375 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:26:58,376 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:26:58,376 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:26:58,377 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:26:58,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:26:58,378 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:26:58,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:26:58,379 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan 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 -> Taipan 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 -> 895331ee792cb4570cc9dc952fbc5a33a57f2c1f [2018-11-18 10:26:58,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:26:58,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:26:58,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:26:58,419 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:26:58,419 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:26:58,420 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:26:58,466 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/3a3c3f765/a7bb756a62c946258cf0c8acedb956d7/FLAGb256d8652 [2018-11-18 10:26:58,863 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:26:58,863 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:26:58,867 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/3a3c3f765/a7bb756a62c946258cf0c8acedb956d7/FLAGb256d8652 [2018-11-18 10:26:58,876 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/3a3c3f765/a7bb756a62c946258cf0c8acedb956d7 [2018-11-18 10:26:58,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:26:58,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:26:58,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:26:58,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:26:58,883 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:26:58,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:58" (1/1) ... [2018-11-18 10:26:58,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491fa483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:58, skipping insertion in model container [2018-11-18 10:26:58,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:58" (1/1) ... [2018-11-18 10:26:58,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:26:58,906 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:26:59,015 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:26:59,597 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:26:59,609 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:26:59,627 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:26:59,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59 WrapperNode [2018-11-18 10:26:59,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:26:59,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:26:59,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:26:59,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:26:59,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:26:59,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:26:59,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:26:59,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:26:59,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... [2018-11-18 10:26:59,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:26:59,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:26:59,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:26:59,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:26:59,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/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 10:26:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:26:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:26:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:26:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:26:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:26:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:26:59,890 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:26:59,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:59 BoogieIcfgContainer [2018-11-18 10:26:59,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:26:59,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:26:59,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:26:59,893 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:26:59,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:26:58" (1/3) ... [2018-11-18 10:26:59,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db790c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:59, skipping insertion in model container [2018-11-18 10:26:59,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:59" (2/3) ... [2018-11-18 10:26:59,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db790c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:59, skipping insertion in model container [2018-11-18 10:26:59,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:59" (3/3) ... [2018-11-18 10:26:59,896 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:26:59,905 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:26:59,911 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:26:59,925 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:26:59,949 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:26:59,949 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:26:59,949 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:26:59,949 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:26:59,949 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:26:59,949 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:26:59,949 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:26:59,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:26:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-18 10:26:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:26:59,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:59,964 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:26:59,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:59,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:59,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1583682599, now seen corresponding path program 1 times [2018-11-18 10:26:59,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:27:00,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:00,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:27:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:00,057 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 10:27:00,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:27:00,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:27:00,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:27:00,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:27:00,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:27:00,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:27:00,071 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-18 10:27:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:00,084 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2018-11-18 10:27:00,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:27:00,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 10:27:00,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:00,090 INFO L225 Difference]: With dead ends: 45 [2018-11-18 10:27:00,090 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 10:27:00,092 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:27:00,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 10:27:00,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 10:27:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 10:27:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 10:27:00,115 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 14 [2018-11-18 10:27:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:00,115 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 10:27:00,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:27:00,116 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 10:27:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:27:00,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:00,116 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:00,117 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:00,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:00,117 INFO L82 PathProgramCache]: Analyzing trace with hash 453705660, now seen corresponding path program 1 times [2018-11-18 10:27:00,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:27:00,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:00,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,119 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:27:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:00,162 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 10:27:00,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:27:00,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:27:00,163 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:27:00,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:27:00,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:27:00,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:27:00,164 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 10:27:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:00,194 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-11-18 10:27:00,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:27:00,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 10:27:00,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:00,196 INFO L225 Difference]: With dead ends: 44 [2018-11-18 10:27:00,196 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 10:27:00,197 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:27:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 10:27:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-11-18 10:27:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 10:27:00,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-18 10:27:00,202 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-11-18 10:27:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:00,202 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-18 10:27:00,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:27:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-18 10:27:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:27:00,203 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:00,204 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:00,204 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:00,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:00,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1787373493, now seen corresponding path program 1 times [2018-11-18 10:27:00,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:27:00,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:00,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:00,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:27:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:00,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:27:00,248 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:27:00,249 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-11-18 10:27:00,253 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [29], [44], [47], [49], [55], [56], [57], [59] [2018-11-18 10:27:00,277 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:27:00,278 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:27:00,339 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 10:27:00,341 INFO L168 Benchmark]: Toolchain (without parser) took 1462.93 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 954.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,342 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:27:00,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.65 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 733.4 MB in the end (delta: 227.5 MB). Peak memory consumption was 297.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.85 ms. Allocated memory is still 1.0 GB. Free memory was 733.4 MB in the beginning and 728.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,344 INFO L168 Benchmark]: Boogie Preprocessor took 62.58 ms. Allocated memory is still 1.0 GB. Free memory was 728.3 MB in the beginning and 1.0 GB in the end (delta: -279.2 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,344 INFO L168 Benchmark]: RCFGBuilder took 182.18 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 992.7 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,345 INFO L168 Benchmark]: TraceAbstraction took 449.76 ms. Allocated memory is still 1.0 GB. Free memory was 992.7 MB in the beginning and 954.6 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:00,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 748.65 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 733.4 MB in the end (delta: 227.5 MB). Peak memory consumption was 297.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.85 ms. Allocated memory is still 1.0 GB. Free memory was 733.4 MB in the beginning and 728.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.58 ms. Allocated memory is still 1.0 GB. Free memory was 728.3 MB in the beginning and 1.0 GB in the end (delta: -279.2 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. * RCFGBuilder took 182.18 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 992.7 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 449.76 ms. Allocated memory is still 1.0 GB. Free memory was 992.7 MB in the beginning and 954.6 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 10:27:01,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:27:01,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:27:01,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:27:01,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:27:01,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:27:01,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:27:01,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:27:01,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:27:01,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:27:01,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:27:01,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:27:01,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:27:01,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:27:01,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:27:01,836 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:27:01,837 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:27:01,838 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:27:01,840 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:27:01,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:27:01,841 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:27:01,842 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:27:01,844 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:27:01,844 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:27:01,844 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:27:01,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:27:01,846 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:27:01,846 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:27:01,847 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:27:01,848 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:27:01,848 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:27:01,849 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:27:01,849 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:27:01,849 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:27:01,850 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:27:01,850 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:27:01,850 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:27:01,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:27:01,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:27:01,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:27:01,862 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:27:01,862 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:27:01,862 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:27:01,862 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:27:01,863 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:27:01,863 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:27:01,863 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:27:01,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:27:01,864 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:27:01,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:27:01,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:27:01,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:27:01,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:27:01,867 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:27:01,867 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:27:01,867 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_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan 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 -> Taipan 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 -> 895331ee792cb4570cc9dc952fbc5a33a57f2c1f [2018-11-18 10:27:01,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:27:01,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:27:01,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:27:01,910 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:27:01,910 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:27:01,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:27:01,954 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/9228d9a85/059db8c7dd4b4152884e2d5f799136ff/FLAGe460574eb [2018-11-18 10:27:02,252 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:27:02,252 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/sv-benchmarks/c/array-industry-pattern/array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:27:02,255 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/9228d9a85/059db8c7dd4b4152884e2d5f799136ff/FLAGe460574eb [2018-11-18 10:27:02,265 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/data/9228d9a85/059db8c7dd4b4152884e2d5f799136ff [2018-11-18 10:27:02,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:27:02,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:27:02,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:02,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:27:02,271 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:27:02,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:02" (1/1) ... [2018-11-18 10:27:02,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d864d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:02, skipping insertion in model container [2018-11-18 10:27:02,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:02" (1/1) ... [2018-11-18 10:27:02,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:27:02,295 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:27:02,416 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:03,111 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:27:03,124 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:03,142 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:27:03,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03 WrapperNode [2018-11-18 10:27:03,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:03,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:27:03,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:27:03,144 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:27:03,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:27:03,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:27:03,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:27:03,163 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:27:03,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... [2018-11-18 10:27:03,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:27:03,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:27:03,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:27:03,181 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:27:03,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/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 10:27:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:27:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:27:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:27:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:27:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:27:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:27:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:27:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:27:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:27:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:27:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:27:03,390 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:27:03,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:03 BoogieIcfgContainer [2018-11-18 10:27:03,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:27:03,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:27:03,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:27:03,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:27:03,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:27:02" (1/3) ... [2018-11-18 10:27:03,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e6b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:03, skipping insertion in model container [2018-11-18 10:27:03,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:03" (2/3) ... [2018-11-18 10:27:03,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e6b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:03, skipping insertion in model container [2018-11-18 10:27:03,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:03" (3/3) ... [2018-11-18 10:27:03,396 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_loop_dep_false-unreach-call.i [2018-11-18 10:27:03,404 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:27:03,409 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:27:03,421 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:27:03,446 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:27:03,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:27:03,447 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:27:03,447 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:27:03,447 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:27:03,447 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:27:03,447 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:27:03,448 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:27:03,448 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:27:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-18 10:27:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:27:03,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:03,464 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:03,466 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:03,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1583682599, now seen corresponding path program 1 times [2018-11-18 10:27:03,473 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:03,473 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:03,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:03,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:03,536 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 10:27:03,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:27:03,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:27:03,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:27:03,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:27:03,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:27:03,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:27:03,551 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-18 10:27:03,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:03,564 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2018-11-18 10:27:03,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:27:03,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 10:27:03,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:03,570 INFO L225 Difference]: With dead ends: 45 [2018-11-18 10:27:03,570 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 10:27:03,572 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:27:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 10:27:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 10:27:03,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 10:27:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 10:27:03,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 14 [2018-11-18 10:27:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:03,597 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 10:27:03,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:27:03,598 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 10:27:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:27:03,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:03,598 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:03,599 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:03,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:03,599 INFO L82 PathProgramCache]: Analyzing trace with hash 453705660, now seen corresponding path program 1 times [2018-11-18 10:27:03,599 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:03,599 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:03,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:03,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:03,648 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 10:27:03,648 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:27:03,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:27:03,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:27:03,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:27:03,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:27:03,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:27:03,650 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 10:27:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:03,683 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-11-18 10:27:03,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:27:03,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 10:27:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:03,685 INFO L225 Difference]: With dead ends: 44 [2018-11-18 10:27:03,685 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 10:27:03,686 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:27:03,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 10:27:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-11-18 10:27:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 10:27:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-18 10:27:03,693 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-11-18 10:27:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:03,694 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-18 10:27:03,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:27:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-18 10:27:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:27:03,695 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:03,695 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:03,695 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:03,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:03,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1787373493, now seen corresponding path program 1 times [2018-11-18 10:27:03,696 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:03,696 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:03,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:03,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:03,758 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:03,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:27:03,808 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:27:03,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:03,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:03,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 15 treesize of output 12 [2018-11-18 10:27:03,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 12 treesize of output 11 [2018-11-18 10:27:03,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:27:03,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:27:03,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:27:03,900 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-11-18 10:27:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:03,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:04,162 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 14 treesize of output 12 [2018-11-18 10:27:04,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-18 10:27:04,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:27:04,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:27:04,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:27:04,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:11 [2018-11-18 10:27:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:04,273 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:27:04,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6, 10] total 18 [2018-11-18 10:27:04,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 10:27:04,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 10:27:04,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-11-18 10:27:04,274 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 18 states. [2018-11-18 10:27:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:04,893 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2018-11-18 10:27:04,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 10:27:04,893 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-11-18 10:27:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:04,894 INFO L225 Difference]: With dead ends: 90 [2018-11-18 10:27:04,894 INFO L226 Difference]: Without dead ends: 72 [2018-11-18 10:27:04,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=266, Invalid=790, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 10:27:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-18 10:27:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 58. [2018-11-18 10:27:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 10:27:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-11-18 10:27:04,910 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 18 [2018-11-18 10:27:04,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:04,910 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-11-18 10:27:04,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 10:27:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-11-18 10:27:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 10:27:04,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:04,911 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:04,912 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:04,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:04,912 INFO L82 PathProgramCache]: Analyzing trace with hash 872915899, now seen corresponding path program 1 times [2018-11-18 10:27:04,913 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:04,913 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:04,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:04,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:27:04,997 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:27:05,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:27:05,098 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:27:05,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:05,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:27:05,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:27:05,157 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:27:05,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 12 [2018-11-18 10:27:05,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 10:27:05,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 10:27:05,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:27:05,158 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 12 states. [2018-11-18 10:27:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:05,517 INFO L93 Difference]: Finished difference Result 153 states and 180 transitions. [2018-11-18 10:27:05,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 10:27:05,517 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-11-18 10:27:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:05,518 INFO L225 Difference]: With dead ends: 153 [2018-11-18 10:27:05,519 INFO L226 Difference]: Without dead ends: 115 [2018-11-18 10:27:05,519 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2018-11-18 10:27:05,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-18 10:27:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 88. [2018-11-18 10:27:05,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-11-18 10:27:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-11-18 10:27:05,532 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 37 [2018-11-18 10:27:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:05,533 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-11-18 10:27:05,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 10:27:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-11-18 10:27:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 10:27:05,535 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:05,535 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:05,535 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:05,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:05,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1835112603, now seen corresponding path program 2 times [2018-11-18 10:27:05,536 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:05,536 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:05,551 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 10:27:05,594 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:27:05,594 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:27:05,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:27:05,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 155 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:27:05,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:27:05,922 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:27:05,929 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 10:27:05,955 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:27:05,955 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:27:05,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:27:05,968 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 155 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:27:06,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:27:06,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13] total 24 [2018-11-18 10:27:06,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 10:27:06,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 10:27:06,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2018-11-18 10:27:06,002 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 24 states. [2018-11-18 10:27:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:07,699 INFO L93 Difference]: Finished difference Result 273 states and 328 transitions. [2018-11-18 10:27:07,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 10:27:07,700 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 55 [2018-11-18 10:27:07,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:07,701 INFO L225 Difference]: With dead ends: 273 [2018-11-18 10:27:07,701 INFO L226 Difference]: Without dead ends: 223 [2018-11-18 10:27:07,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 10:27:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-18 10:27:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 160. [2018-11-18 10:27:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-11-18 10:27:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2018-11-18 10:27:07,731 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 55 [2018-11-18 10:27:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:07,732 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2018-11-18 10:27:07,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 10:27:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2018-11-18 10:27:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-18 10:27:07,733 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:07,733 INFO L375 BasicCegarLoop]: trace histogram [23, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:07,733 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:07,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:07,736 INFO L82 PathProgramCache]: Analyzing trace with hash 637868635, now seen corresponding path program 3 times [2018-11-18 10:27:07,736 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:27:07,736 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:27:07,768 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 10:27:11,576 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2018-11-18 10:27:11,576 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:27:11,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:27:11,798 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:27:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 2 proven. 737 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:27:12,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:27:12,908 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:27:12,913 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 10:28:57,517 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2018-11-18 10:28:57,517 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:28:57,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:28:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:28:57,569 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:29:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 2 proven. 737 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:29:00,199 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:29:00,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25, 26] total 70 [2018-11-18 10:29:00,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-11-18 10:29:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-11-18 10:29:00,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1425, Invalid=3405, Unknown=0, NotChecked=0, Total=4830 [2018-11-18 10:29:00,200 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 70 states. [2018-11-18 10:29:08,531 WARN L180 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-11-18 10:29:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:29:11,307 INFO L93 Difference]: Finished difference Result 525 states and 640 transitions. [2018-11-18 10:29:11,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 10:29:11,307 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 91 [2018-11-18 10:29:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:29:11,309 INFO L225 Difference]: With dead ends: 525 [2018-11-18 10:29:11,309 INFO L226 Difference]: Without dead ends: 439 [2018-11-18 10:29:11,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2783, Invalid=5773, Unknown=0, NotChecked=0, Total=8556 [2018-11-18 10:29:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-11-18 10:29:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 304. [2018-11-18 10:29:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-11-18 10:29:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 328 transitions. [2018-11-18 10:29:11,360 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 328 transitions. Word has length 91 [2018-11-18 10:29:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:29:11,360 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 328 transitions. [2018-11-18 10:29:11,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-11-18 10:29:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 328 transitions. [2018-11-18 10:29:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-11-18 10:29:11,362 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:29:11,362 INFO L375 BasicCegarLoop]: trace histogram [47, 46, 46, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:29:11,362 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:29:11,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:29:11,363 INFO L82 PathProgramCache]: Analyzing trace with hash -292389413, now seen corresponding path program 4 times [2018-11-18 10:29:11,363 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:29:11,363 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c8a26b9-d26a-4a17-b7f8-60a8ef8540d8/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:29:11,376 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 10:29:11,592 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:29:11,592 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 10:29:11,595 INFO L168 Benchmark]: Toolchain (without parser) took 129327.69 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 481.3 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -209.1 MB). Peak memory consumption was 272.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:29:11,595 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:29:11,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.2 MB in the beginning and 801.6 MB in the end (delta: 151.6 MB). Peak memory consumption was 285.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:29:11,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.2 GB. Free memory was 801.6 MB in the beginning and 794.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:29:11,596 INFO L168 Benchmark]: Boogie Preprocessor took 17.15 ms. Allocated memory is still 1.2 GB. Free memory is still 794.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:29:11,597 INFO L168 Benchmark]: RCFGBuilder took 210.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.2 MB). Free memory was 794.2 MB in the beginning and 1.2 GB in the end (delta: -454.7 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. [2018-11-18 10:29:11,597 INFO L168 Benchmark]: TraceAbstraction took 128203.17 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 212.9 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.7 MB). Peak memory consumption was 299.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:29:11,600 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 874.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.2 MB in the beginning and 801.6 MB in the end (delta: 151.6 MB). Peak memory consumption was 285.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.2 GB. Free memory was 801.6 MB in the beginning and 794.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.15 ms. Allocated memory is still 1.2 GB. Free memory is still 794.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 210.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.2 MB). Free memory was 794.2 MB in the beginning and 1.2 GB in the end (delta: -454.7 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. * TraceAbstraction took 128203.17 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 212.9 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.7 MB). Peak memory consumption was 299.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...