./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/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 6ebd5b9a3160cad0f8876c1414f4b918e994ed8d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 13:34:50,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:34:50,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:34:50,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:34:50,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:34:50,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:34:50,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:34:50,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:34:50,565 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:34:50,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:34:50,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:34:50,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:34:50,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:34:50,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:34:50,569 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:34:50,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:34:50,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:34:50,571 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:34:50,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:34:50,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:34:50,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:34:50,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:34:50,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:34:50,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:34:50,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:34:50,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:34:50,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:34:50,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:34:50,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:34:50,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:34:50,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:34:50,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:34:50,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:34:50,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:34:50,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:34:50,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:34:50,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:34:50,593 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:34:50,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:34:50,594 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:34:50,594 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:34:50,594 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:34:50,594 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:34:50,595 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:34:50,595 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:34:50,595 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:34:50,595 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:34:50,595 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:34:50,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:34:50,596 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:34:50,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:34:50,596 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:34:50,596 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:34:50,596 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:34:50,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:34:50,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:34:50,597 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:34:50,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:34:50,597 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:34:50,597 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:34:50,598 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:34:50,598 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:34:50,599 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:34:50,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:34:50,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:34:50,599 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:34:50,599 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_ab60ec93-a867-4793-be55-da31832f31ba/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 -> 6ebd5b9a3160cad0f8876c1414f4b918e994ed8d [2018-11-10 13:34:50,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:34:50,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:34:50,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:34:50,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:34:50,636 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:34:50,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:34:50,681 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/data/b814324f7/517c14807eea44dd916d908c138a75f2/FLAGdd6591c14 [2018-11-10 13:34:51,031 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:34:51,031 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:34:51,042 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/data/b814324f7/517c14807eea44dd916d908c138a75f2/FLAGdd6591c14 [2018-11-10 13:34:51,052 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/data/b814324f7/517c14807eea44dd916d908c138a75f2 [2018-11-10 13:34:51,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:34:51,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:34:51,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:51,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:34:51,057 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:34:51,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640d0c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51, skipping insertion in model container [2018-11-10 13:34:51,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:34:51,091 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:34:51,264 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:51,270 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:34:51,298 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:51,324 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:34:51,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51 WrapperNode [2018-11-10 13:34:51,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:51,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:51,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:34:51,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:34:51,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:51,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:34:51,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:34:51,401 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:34:51,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... [2018-11-10 13:34:51,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:34:51,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:34:51,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:34:51,424 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:34:51,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/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 [2018-11-10 13:34:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 13:34:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 13:34:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:34:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:34:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:34:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:34:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:34:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:34:51,663 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:34:51,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:51 BoogieIcfgContainer [2018-11-10 13:34:51,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:34:51,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:34:51,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:34:51,667 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:34:51,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:34:51" (1/3) ... [2018-11-10 13:34:51,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a722ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:51, skipping insertion in model container [2018-11-10 13:34:51,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:51" (2/3) ... [2018-11-10 13:34:51,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a722ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:51, skipping insertion in model container [2018-11-10 13:34:51,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:51" (3/3) ... [2018-11-10 13:34:51,669 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:34:51,675 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:34:51,680 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:34:51,688 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:34:51,707 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:34:51,707 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:34:51,707 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:34:51,707 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:34:51,707 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:34:51,708 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:34:51,708 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:34:51,708 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:34:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-10 13:34:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 13:34:51,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:51,724 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:51,725 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:51,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:51,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1609882282, now seen corresponding path program 1 times [2018-11-10 13:34:51,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:51,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:51,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:51,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:51,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:51,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:51,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:34:51,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:51,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:34:51,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:34:51,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:34:51,829 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-11-10 13:34:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:51,843 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-11-10 13:34:51,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:34:51,844 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-10 13:34:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:51,849 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:34:51,849 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 13:34:51,851 INFO L605 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 [2018-11-10 13:34:51,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 13:34:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 13:34:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 13:34:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-11-10 13:34:51,873 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 15 [2018-11-10 13:34:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:51,873 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-11-10 13:34:51,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:34:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-11-10 13:34:51,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 13:34:51,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:51,874 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:51,874 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:51,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:51,875 INFO L82 PathProgramCache]: Analyzing trace with hash -750865625, now seen corresponding path program 1 times [2018-11-10 13:34:51,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:51,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:51,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:51,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:51,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:51,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:51,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:34:51,961 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:51,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:34:51,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:34:51,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:34:51,963 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 5 states. [2018-11-10 13:34:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:52,082 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-11-10 13:34:52,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:34:52,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-10 13:34:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:52,084 INFO L225 Difference]: With dead ends: 56 [2018-11-10 13:34:52,084 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 13:34:52,085 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:34:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 13:34:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2018-11-10 13:34:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 13:34:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2018-11-10 13:34:52,090 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 19 [2018-11-10 13:34:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:52,090 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2018-11-10 13:34:52,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:34:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2018-11-10 13:34:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:34:52,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:52,091 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:52,092 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:52,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:52,092 INFO L82 PathProgramCache]: Analyzing trace with hash 127281064, now seen corresponding path program 1 times [2018-11-10 13:34:52,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:52,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:52,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:52,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:52,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:34:52,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:52,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:34:52,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:34:52,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:34:52,143 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 5 states. [2018-11-10 13:34:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:52,218 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-11-10 13:34:52,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:34:52,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-10 13:34:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:52,220 INFO L225 Difference]: With dead ends: 65 [2018-11-10 13:34:52,220 INFO L226 Difference]: Without dead ends: 55 [2018-11-10 13:34:52,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:34:52,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-10 13:34:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2018-11-10 13:34:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-10 13:34:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-11-10 13:34:52,224 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2018-11-10 13:34:52,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:52,224 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-11-10 13:34:52,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:34:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-11-10 13:34:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:34:52,225 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:52,225 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:52,225 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:52,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:52,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2032202648, now seen corresponding path program 1 times [2018-11-10 13:34:52,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:52,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:52,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,226 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:52,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:52,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:34:52,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:52,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:34:52,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:34:52,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:34:52,282 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 5 states. [2018-11-10 13:34:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:52,357 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2018-11-10 13:34:52,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:34:52,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-10 13:34:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:52,357 INFO L225 Difference]: With dead ends: 62 [2018-11-10 13:34:52,357 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 13:34:52,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:34:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 13:34:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 30. [2018-11-10 13:34:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 13:34:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-10 13:34:52,360 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-11-10 13:34:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:52,360 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-10 13:34:52,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:34:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-10 13:34:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:34:52,360 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:52,361 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:52,361 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:52,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:52,361 INFO L82 PathProgramCache]: Analyzing trace with hash -468618363, now seen corresponding path program 1 times [2018-11-10 13:34:52,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:52,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:52,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:52,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:52,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:34:52,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:52,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:34:52,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:34:52,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:34:52,386 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2018-11-10 13:34:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:52,399 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-11-10 13:34:52,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:34:52,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-10 13:34:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:52,400 INFO L225 Difference]: With dead ends: 62 [2018-11-10 13:34:52,400 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:34:52,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:34:52,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:34:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-11-10 13:34:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 13:34:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-10 13:34:52,404 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 26 [2018-11-10 13:34:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:52,404 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-10 13:34:52,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:34:52,404 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-10 13:34:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:34:52,405 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:52,405 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:52,405 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:52,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:52,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1319858053, now seen corresponding path program 1 times [2018-11-10 13:34:52,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:52,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:52,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:52,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:34:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:34:52,448 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:34:52,457 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,458 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,458 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,458 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,460 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,460 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,460 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,460 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,465 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,465 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,465 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,466 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,466 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:34:52 BoogieIcfgContainer [2018-11-10 13:34:52,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:34:52,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:34:52,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:34:52,483 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:34:52,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:51" (3/4) ... [2018-11-10 13:34:52,485 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:34:52,487 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,487 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,487 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,487 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,487 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,488 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,488 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,488 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,488 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,488 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,489 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,490 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,490 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,490 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,490 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,490 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,491 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,491 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,491 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,491 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,491 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,492 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,493 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,493 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,493 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,493 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,493 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,494 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,494 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,494 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,494 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,494 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:52,521 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ab60ec93-a867-4793-be55-da31832f31ba/bin-2019/utaipan/witness.graphml [2018-11-10 13:34:52,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:34:52,522 INFO L168 Benchmark]: Toolchain (without parser) took 1467.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -66.4 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,523 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:34:52,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.71 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 928.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 928.8 MB in the beginning and 1.2 GB in the end (delta: -234.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,524 INFO L168 Benchmark]: Boogie Preprocessor took 22.19 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. [2018-11-10 13:34:52,524 INFO L168 Benchmark]: RCFGBuilder took 240.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,524 INFO L168 Benchmark]: TraceAbstraction took 818.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.0 MB). Peak memory consumption was 109.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,525 INFO L168 Benchmark]: Witness Printer took 38.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:52,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.71 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 928.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 928.8 MB in the beginning and 1.2 GB in the end (delta: -234.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.19 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. * RCFGBuilder took 240.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 818.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.0 MB). Peak memory consumption was 109.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 652]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] int flag = __VERIFIER_nondet_int(); [L628] List p, a, t; [L629] EXPR, FCALL malloc(sizeof(struct node)) [L629] a = (List) malloc(sizeof(struct node)) [L630] COND FALSE !(a == 0) [L631] p = a [L632] COND TRUE __VERIFIER_nondet_int() [L633] COND FALSE !(\read(flag)) [L636] CALL p->h = 2 [L636] RET p->h = 2 [L638] EXPR, FCALL malloc(sizeof(struct node)) [L638] t = (List) malloc(sizeof(struct node)) [L639] COND FALSE !(t == 0) [L640] CALL p->n = t [L640] RET p->n = t [L641] CALL, EXPR p->n [L641] RET, EXPR p->n [L641] p = p->n [L632] COND FALSE !(__VERIFIER_nondet_int()) [L643] CALL p->h = 3 [L643] RET p->h = 3 [L644] p = a [L645] COND FALSE !(\read(flag)) [L649] CALL, EXPR p->h [L649] RET, EXPR p->h [L649] COND FALSE !(p->h == 1) [L651] CALL, EXPR p->h [L651] RET, EXPR p->h [L651] COND TRUE p->h != 3 [L652] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 95 SDslu, 215 SDs, 0 SdLazy, 134 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 5451 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...