./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/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 1f270b702de634d3ad2ee5a400388c6410a4cf10 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:04:56,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:04:56,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:04:56,356 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:04:56,357 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:04:56,357 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:04:56,358 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:04:56,359 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:04:56,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:04:56,361 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:04:56,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:04:56,362 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:04:56,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:04:56,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:04:56,363 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:04:56,364 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:04:56,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:04:56,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:04:56,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:04:56,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:04:56,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:04:56,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:04:56,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:04:56,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:04:56,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:04:56,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:04:56,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:04:56,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:04:56,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:04:56,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:04:56,374 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:04:56,374 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:04:56,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:04:56,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:04:56,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:04:56,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:04:56,376 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 15:04:56,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:04:56,385 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:04:56,386 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:04:56,386 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:04:56,386 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:04:56,386 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:04:56,386 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:04:56,386 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:04:56,386 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:04:56,387 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:04:56,387 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:04:56,387 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:04:56,387 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:04:56,388 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:04:56,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:04:56,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:04:56,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:04:56,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:04:56,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:04:56,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:04:56,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:04:56,391 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_6f64449a-8c65-458a-9d14-0ecf230729f9/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 -> 1f270b702de634d3ad2ee5a400388c6410a4cf10 [2018-11-23 15:04:56,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:04:56,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:04:56,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:04:56,429 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:04:56,429 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:04:56,430 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-23 15:04:56,465 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/data/dbb2fc1b2/0c6cdc9f754c4f16ac7864dee58ae545/FLAGa0a6e7354 [2018-11-23 15:04:56,853 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:04:56,853 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-23 15:04:56,863 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/data/dbb2fc1b2/0c6cdc9f754c4f16ac7864dee58ae545/FLAGa0a6e7354 [2018-11-23 15:04:57,227 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/data/dbb2fc1b2/0c6cdc9f754c4f16ac7864dee58ae545 [2018-11-23 15:04:57,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:04:57,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:04:57,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:04:57,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:04:57,232 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:04:57,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed8f2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57, skipping insertion in model container [2018-11-23 15:04:57,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:04:57,268 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:04:57,452 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:04:57,459 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:04:57,524 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:04:57,558 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:04:57,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57 WrapperNode [2018-11-23 15:04:57,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:04:57,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:04:57,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:04:57,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:04:57,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:04:57,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:04:57,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:04:57,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:04:57,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... [2018-11-23 15:04:57,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:04:57,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:04:57,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:04:57,601 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:04:57,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/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 [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:04:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:04:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:04:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:04:57,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:04:57,845 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:04:57,845 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-23 15:04:57,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:57 BoogieIcfgContainer [2018-11-23 15:04:57,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:04:57,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:04:57,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:04:57,848 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:04:57,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:04:57" (1/3) ... [2018-11-23 15:04:57,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d6f046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:57, skipping insertion in model container [2018-11-23 15:04:57,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:57" (2/3) ... [2018-11-23 15:04:57,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d6f046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:57, skipping insertion in model container [2018-11-23 15:04:57,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:57" (3/3) ... [2018-11-23 15:04:57,851 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-23 15:04:57,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:04:57,865 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 15:04:57,874 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 15:04:57,891 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:04:57,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:04:57,891 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:04:57,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:04:57,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:04:57,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:04:57,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:04:57,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:04:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-23 15:04:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 15:04:57,907 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:04:57,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:04:57,909 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:04:57,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:57,914 INFO L82 PathProgramCache]: Analyzing trace with hash -807935886, now seen corresponding path program 1 times [2018-11-23 15:04:57,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:04:57,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:57,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:57,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:57,952 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:04:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:04:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:58,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:04:58,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:04:58,007 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:04:58,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 15:04:58,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 15:04:58,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 15:04:58,019 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-23 15:04:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:04:58,030 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2018-11-23 15:04:58,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 15:04:58,031 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 15:04:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:04:58,037 INFO L225 Difference]: With dead ends: 59 [2018-11-23 15:04:58,037 INFO L226 Difference]: Without dead ends: 27 [2018-11-23 15:04:58,040 INFO L631 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 [2018-11-23 15:04:58,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-23 15:04:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-23 15:04:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 15:04:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-23 15:04:58,061 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2018-11-23 15:04:58,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:04:58,061 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-23 15:04:58,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 15:04:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-23 15:04:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 15:04:58,062 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:04:58,062 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:04:58,062 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:04:58,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:58,062 INFO L82 PathProgramCache]: Analyzing trace with hash 711422280, now seen corresponding path program 1 times [2018-11-23 15:04:58,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:04:58,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:58,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,064 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:04:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:04:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:58,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:04:58,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:04:58,122 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:04:58,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:04:58,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:04:58,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:04:58,124 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2018-11-23 15:04:58,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:04:58,181 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2018-11-23 15:04:58,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:04:58,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-23 15:04:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:04:58,182 INFO L225 Difference]: With dead ends: 35 [2018-11-23 15:04:58,182 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 15:04:58,183 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:04:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 15:04:58,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2018-11-23 15:04:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 15:04:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-23 15:04:58,186 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2018-11-23 15:04:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:04:58,187 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-23 15:04:58,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:04:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-23 15:04:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 15:04:58,187 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:04:58,187 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:04:58,188 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:04:58,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:58,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1678513884, now seen corresponding path program 1 times [2018-11-23 15:04:58,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:04:58,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:58,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:04:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:04:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:58,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:04:58,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 15:04:58,273 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:04:58,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:04:58,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:04:58,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:04:58,274 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2018-11-23 15:04:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:04:58,384 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2018-11-23 15:04:58,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 15:04:58,384 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 15:04:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:04:58,385 INFO L225 Difference]: With dead ends: 51 [2018-11-23 15:04:58,385 INFO L226 Difference]: Without dead ends: 49 [2018-11-23 15:04:58,385 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 15:04:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-23 15:04:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 32. [2018-11-23 15:04:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 15:04:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-23 15:04:58,389 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 14 [2018-11-23 15:04:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:04:58,389 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-23 15:04:58,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:04:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-23 15:04:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 15:04:58,390 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:04:58,390 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:04:58,390 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:04:58,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:58,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1763906605, now seen corresponding path program 1 times [2018-11-23 15:04:58,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:04:58,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:58,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:58,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:04:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:04:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:58,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:04:58,557 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:04:58,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-23 15:04:58,559 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [25], [35], [39], [46], [49], [50], [117], [118], [119] [2018-11-23 15:04:58,582 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:04:58,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:04:58,672 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:04:58,672 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 117 root evaluator evaluations with a maximum evaluation depth of 3. Performed 117 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-11-23 15:04:58,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:58,678 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:04:58,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:04:58,678 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:04:58,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:58,684 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:04:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:04:58,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:04:58,732 INFO L478 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 6 treesize of output 5 [2018-11-23 15:04:58,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,749 INFO L478 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 13 treesize of output 10 [2018-11-23 15:04:58,752 INFO L478 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 10 treesize of output 9 [2018-11-23 15:04:58,753 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,754 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,763 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:29, output treesize:24 [2018-11-23 15:04:58,784 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:04:58,788 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:04:58,789 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 15:04:58,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2018-11-23 15:04:58,853 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 15:04:58,854 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2018-11-23 15:04:58,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 15:04:58,865 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,868 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,870 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 25 treesize of output 20 [2018-11-23 15:04:58,902 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:04:58,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 15:04:58,906 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,911 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-23 15:04:58,936 INFO L478 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 16 treesize of output 15 [2018-11-23 15:04:58,936 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,941 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-23 15:04:58,955 INFO L478 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 1 [2018-11-23 15:04:58,955 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,958 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,966 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 8 variables, input treesize:108, output treesize:17 [2018-11-23 15:04:58,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 15:04:58,988 INFO L478 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 10 treesize of output 9 [2018-11-23 15:04:58,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:58,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:58,997 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2018-11-23 15:04:59,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-23 15:04:59,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 15:04:59,045 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 15:04:59,049 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,050 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,053 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:28, output treesize:3 [2018-11-23 15:04:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:59,055 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:04:59,168 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 85 [2018-11-23 15:04:59,203 INFO L478 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 9 treesize of output 8 [2018-11-23 15:04:59,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,214 INFO L478 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 44 treesize of output 34 [2018-11-23 15:04:59,217 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 20 [2018-11-23 15:04:59,217 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,224 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,229 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,233 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 71 [2018-11-23 15:04:59,261 INFO L478 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 9 treesize of output 8 [2018-11-23 15:04:59,261 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,269 INFO L478 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 37 treesize of output 29 [2018-11-23 15:04:59,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 16 [2018-11-23 15:04:59,272 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,275 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,280 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,299 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,302 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,322 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,330 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,332 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,337 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,358 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,363 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,365 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,372 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 15:04:59,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2018-11-23 15:04:59,390 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:228, output treesize:97 [2018-11-23 15:04:59,422 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 15:04:59,422 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 10 variables, input treesize:58, output treesize:1 [2018-11-23 15:04:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:04:59,440 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:04:59,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2018-11-23 15:04:59,440 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:04:59,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 15:04:59,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 15:04:59,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:04:59,441 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-11-23 15:04:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:04:59,913 INFO L93 Difference]: Finished difference Result 93 states and 107 transitions. [2018-11-23 15:04:59,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 15:04:59,913 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2018-11-23 15:04:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:04:59,915 INFO L225 Difference]: With dead ends: 93 [2018-11-23 15:04:59,915 INFO L226 Difference]: Without dead ends: 91 [2018-11-23 15:04:59,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2018-11-23 15:04:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-11-23 15:04:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 38. [2018-11-23 15:04:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 15:04:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-23 15:04:59,922 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 17 [2018-11-23 15:04:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:04:59,922 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-23 15:04:59,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 15:04:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-23 15:04:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 15:04:59,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:04:59,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:04:59,923 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:04:59,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:04:59,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1644345819, now seen corresponding path program 1 times [2018-11-23 15:04:59,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:04:59,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:59,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:04:59,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:04:59,925 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:04:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:05:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:05:00,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:05:00,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 15:05:00,001 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:05:00,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:05:00,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:05:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:05:00,002 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 5 states. [2018-11-23 15:05:00,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:05:00,050 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-11-23 15:05:00,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:05:00,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-23 15:05:00,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:05:00,051 INFO L225 Difference]: With dead ends: 54 [2018-11-23 15:05:00,051 INFO L226 Difference]: Without dead ends: 46 [2018-11-23 15:05:00,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:05:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-23 15:05:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2018-11-23 15:05:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 15:05:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-23 15:05:00,054 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 19 [2018-11-23 15:05:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:05:00,054 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-23 15:05:00,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:05:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-23 15:05:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 15:05:00,055 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:05:00,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:05:00,055 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:05:00,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:05:00,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1644286237, now seen corresponding path program 1 times [2018-11-23 15:05:00,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:05:00,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:05:00,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:05:00,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:05:00,056 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:05:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:05:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:05:00,081 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=18, |#NULL.offset|=13, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] RET #118#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret19 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12);~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4);call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4);call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4);~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~nondet1|=0] [?] assume !(0 != #t~nondet1);havoc #t~nondet1; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] ~end~0.base, ~end~0.offset := 0, 0;~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] goto; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem9|=1] [?] assume !!(~unnamed1~0~BLACK == #t~mem9);havoc #t~mem9; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] goto; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !!(0 != ~end~0.base || 0 != ~end~0.offset);call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem10|=1] [?] assume !(~unnamed1~0~RED == #t~mem10);havoc #t~mem10; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem13.base|=0, |main_#t~mem13.offset|=0] [?] assume #t~mem13.base == 0 && #t~mem13.offset == 0;havoc #t~mem13.base, #t~mem13.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !false; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=18, #NULL.offset=13, old(#NULL.base)=18, old(#NULL.offset)=13] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L994] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12); [L994] ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; [L995] call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); [L996] call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); [L997] call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); [L999] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~nondet1=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002-L1023] assume !(0 != #t~nondet1); [L1002] havoc #t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1025] ~end~0.base, ~end~0.offset := 0, 0; [L1026] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1029] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem9=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] assume !!(~unnamed1~0~BLACK == #t~mem9); [L1030] havoc #t~mem9; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1032-L1042] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); [L1034] call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem10=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1034-L1038] assume !(~unnamed1~0~RED == #t~mem10); [L1034] havoc #t~mem10; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem13.base=0, #t~mem13.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assume #t~mem13.base == 0 && #t~mem13.offset == 0; [L1040] havoc #t~mem13.base, #t~mem13.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assert false; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=18, #NULL.offset=13, old(#NULL.base)=18, old(#NULL.offset)=13] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L994] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12); [L994] ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; [L995] call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); [L996] call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); [L997] call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); [L999] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~nondet1=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002-L1023] assume !(0 != #t~nondet1); [L1002] havoc #t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1025] ~end~0.base, ~end~0.offset := 0, 0; [L1026] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1029] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem9=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] assume !!(~unnamed1~0~BLACK == #t~mem9); [L1030] havoc #t~mem9; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1032-L1042] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); [L1034] call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem10=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1034-L1038] assume !(~unnamed1~0~RED == #t~mem10); [L1034] havoc #t~mem10; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem13.base=0, #t~mem13.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assume #t~mem13.base == 0 && #t~mem13.offset == 0; [L1040] havoc #t~mem13.base, #t~mem13.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assert false; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L994] SLL* list = malloc(sizeof(SLL)); [L995] list->next = ((void*)0) [L996] list->prev = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1029] COND FALSE !(!(((void*)0) != end)) VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next VAL [end={17:0}, end->next={0:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] ----- [2018-11-23 15:05:00,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:05:00 BoogieIcfgContainer [2018-11-23 15:05:00,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:05:00,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:05:00,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:05:00,120 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:05:00,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:57" (3/4) ... [2018-11-23 15:05:00,122 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=18, |#NULL.offset|=13, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=18, |old(#NULL.offset)|=13] [?] RET #118#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret19 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12);~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4);call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4);call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4);~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~nondet1|=0] [?] assume !(0 != #t~nondet1);havoc #t~nondet1; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] ~end~0.base, ~end~0.offset := 0, 0;~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] goto; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem9|=1] [?] assume !!(~unnamed1~0~BLACK == #t~mem9);havoc #t~mem9; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] goto; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !!(0 != ~end~0.base || 0 != ~end~0.offset);call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem10|=1] [?] assume !(~unnamed1~0~RED == #t~mem10);havoc #t~mem10; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0, |main_#t~mem13.base|=0, |main_#t~mem13.offset|=0] [?] assume #t~mem13.base == 0 && #t~mem13.offset == 0;havoc #t~mem13.base, #t~mem13.offset; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] assume !false; VAL [main_~end~0.base=17, main_~end~0.offset=0, main_~list~0.base=17, main_~list~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~malloc0.base|=17, |main_#t~malloc0.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=18, #NULL.offset=13, old(#NULL.base)=18, old(#NULL.offset)=13] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L994] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12); [L994] ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; [L995] call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); [L996] call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); [L997] call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); [L999] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~nondet1=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002-L1023] assume !(0 != #t~nondet1); [L1002] havoc #t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1025] ~end~0.base, ~end~0.offset := 0, 0; [L1026] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1029] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem9=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] assume !!(~unnamed1~0~BLACK == #t~mem9); [L1030] havoc #t~mem9; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1032-L1042] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); [L1034] call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem10=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1034-L1038] assume !(~unnamed1~0~RED == #t~mem10); [L1034] havoc #t~mem10; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem13.base=0, #t~mem13.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assume #t~mem13.base == 0 && #t~mem13.offset == 0; [L1040] havoc #t~mem13.base, #t~mem13.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assert false; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=18, #NULL.offset=13, old(#NULL.base)=18, old(#NULL.offset)=13] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=18, old(#NULL.offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L994] call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(12); [L994] ~list~0.base, ~list~0.offset := #t~malloc0.base, #t~malloc0.offset; [L995] call write~$Pointer$(0, 0, ~list~0.base, ~list~0.offset, 4); [L996] call write~$Pointer$(0, 0, ~list~0.base, 4 + ~list~0.offset, 4); [L997] call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); [L999] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~nondet1=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1002-L1023] assume !(0 != #t~nondet1); [L1002] havoc #t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1025] ~end~0.base, ~end~0.offset := 0, 0; [L1026] ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1029] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] call #t~mem9 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem9=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1030] assume !!(~unnamed1~0~BLACK == #t~mem9); [L1030] havoc #t~mem9; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1032-L1042] assume !!(0 != ~end~0.base || 0 != ~end~0.offset); [L1034] call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem10=1, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1034-L1038] assume !(~unnamed1~0~RED == #t~mem10); [L1034] havoc #t~mem10; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, #t~mem13.base=0, #t~mem13.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assume #t~mem13.base == 0 && #t~mem13.offset == 0; [L1040] havoc #t~mem13.base, #t~mem13.offset; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [L1040] assert false; VAL [#NULL.base=0, #NULL.offset=0, #t~malloc0.base=17, #t~malloc0.offset=0, ~end~0.base=17, ~end~0.offset=0, ~list~0.base=17, ~list~0.offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=18, #NULL!offset=13, old(#NULL!base)=18, old(#NULL!offset)=13] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=18, old(#NULL!offset)=13] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret19 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L994] FCALL call #t~malloc0 := #Ultimate.alloc(12); [L994] ~list~0 := #t~malloc0; [L995] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: ~list~0!offset }, 4); [L996] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~list~0!base, offset: 4 + ~list~0!offset }, 4); [L997] FCALL call write~int(~unnamed1~0~BLACK, { base: ~list~0!base, offset: 8 + ~list~0!offset }, 4); [L999] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~nondet1=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1002-L1023] COND TRUE !(0 != #t~nondet1) [L1002] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1025] ~end~0 := { base: 0, offset: 0 }; [L1026] ~end~0 := ~list~0; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1029] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] FCALL call #t~mem9 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem9=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1030] COND FALSE !(!(~unnamed1~0~BLACK == #t~mem9)) [L1030] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1032-L1042] COND FALSE !(!({ base: 0, offset: 0 } != ~end~0)) [L1034] FCALL call #t~mem10 := read~int({ base: ~end~0!base, offset: 8 + ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem10=1, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1034] COND FALSE !(~unnamed1~0~RED == #t~mem10) [L1034] havoc #t~mem10; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] FCALL call #t~mem13 := read~$Pointer$({ base: ~end~0!base, offset: ~end~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, #t~mem13!base=0, #t~mem13!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] COND TRUE #t~mem13 == { base: 0, offset: 0 } [L1040] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L1040] assert false; VAL [#NULL!base=0, #NULL!offset=0, #t~malloc0!base=17, #t~malloc0!offset=0, ~end~0!base=17, ~end~0!offset=0, ~list~0!base=17, ~list~0!offset=0] [L994] SLL* list = malloc(sizeof(SLL)); [L995] list->next = ((void*)0) [L996] list->prev = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1029] COND FALSE !(!(((void*)0) != end)) VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next VAL [end={17:0}, end->next={0:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] ----- [2018-11-23 15:05:00,179 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6f64449a-8c65-458a-9d14-0ecf230729f9/bin-2019/utaipan/witness.graphml [2018-11-23 15:05:00,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:05:00,179 INFO L168 Benchmark]: Toolchain (without parser) took 2950.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -223.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:05:00,180 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:05:00,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:05:00,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:05:00,182 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:05:00,183 INFO L168 Benchmark]: RCFGBuilder took 244.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-11-23 15:05:00,183 INFO L168 Benchmark]: TraceAbstraction took 2272.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:05:00,183 INFO L168 Benchmark]: Witness Printer took 59.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:05:00,186 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 244.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2272.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 59.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L994] SLL* list = malloc(sizeof(SLL)); [L995] list->next = ((void*)0) [L996] list->prev = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1029] COND FALSE !(!(((void*)0) != end)) VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR end->colour VAL [end={17:0}, end->colour=1, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next VAL [end={17:0}, end->next={0:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() VAL [end={17:0}, list={17:0}, malloc(sizeof(SLL))={17:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 3 error locations. UNSAFE Result, 2.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 189 SDslu, 294 SDs, 0 SdLazy, 230 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 84 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 98 ConstructedInterpolants, 8 QuantifiedInterpolants, 11444 SizeOfPredicates, 13 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...