./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test28_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ab8dcad35597bc77a09246c20c802a7c0b3d86b ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:26:09,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:26:09,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:26:09,608 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:26:09,609 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:26:09,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:26:09,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:26:09,611 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:26:09,612 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:26:09,613 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:26:09,614 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:26:09,614 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:26:09,614 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:26:09,615 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:26:09,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:26:09,616 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:26:09,617 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:26:09,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:26:09,619 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:26:09,620 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:26:09,621 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:26:09,622 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:26:09,624 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:26:09,624 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:26:09,624 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:26:09,625 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:26:09,626 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:26:09,626 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:26:09,627 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:26:09,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:26:09,628 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:26:09,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:26:09,628 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:26:09,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:26:09,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:26:09,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:26:09,629 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 10:26:09,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:26:09,639 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:26:09,640 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:26:09,640 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 10:26:09,640 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:26:09,640 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:26:09,640 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:26:09,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:26:09,641 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:26:09,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:26:09,642 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:26:09,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:26:09,643 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab8dcad35597bc77a09246c20c802a7c0b3d86b [2018-11-18 10:26:09,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:26:09,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:26:09,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:26:09,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:26:09,682 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:26:09,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test28_false-unreach-call_true-termination.c [2018-11-18 10:26:09,727 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/data/a05b2e1ad/e37a22f7565643a3b8337372fcd9ce75/FLAGae8503e5d [2018-11-18 10:26:10,129 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:26:10,129 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/sv-benchmarks/c/ldv-regression/test28_false-unreach-call_true-termination.c [2018-11-18 10:26:10,133 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/data/a05b2e1ad/e37a22f7565643a3b8337372fcd9ce75/FLAGae8503e5d [2018-11-18 10:26:10,144 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/data/a05b2e1ad/e37a22f7565643a3b8337372fcd9ce75 [2018-11-18 10:26:10,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:26:10,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:26:10,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:26:10,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:26:10,150 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:26:10,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10, skipping insertion in model container [2018-11-18 10:26:10,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:26:10,170 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:26:10,275 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:26:10,282 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:26:10,292 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:26:10,300 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:26:10,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10 WrapperNode [2018-11-18 10:26:10,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:26:10,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:26:10,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:26:10,301 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:26:10,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... [2018-11-18 10:26:10,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:26:10,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:26:10,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:26:10,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:26:10,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:26:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:26:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:26:10,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:26:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:26:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:26:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:26:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:26:10,545 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:26:10,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:10 BoogieIcfgContainer [2018-11-18 10:26:10,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:26:10,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:26:10,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:26:10,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:26:10,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:26:10" (1/3) ... [2018-11-18 10:26:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92b0ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:10, skipping insertion in model container [2018-11-18 10:26:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:10" (2/3) ... [2018-11-18 10:26:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92b0ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:10, skipping insertion in model container [2018-11-18 10:26:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:10" (3/3) ... [2018-11-18 10:26:10,552 INFO L112 eAbstractionObserver]: Analyzing ICFG test28_false-unreach-call_true-termination.c [2018-11-18 10:26:10,560 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:26:10,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:26:10,581 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:26:10,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:26:10,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:26:10,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:26:10,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:26:10,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:26:10,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:26:10,609 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:26:10,610 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:26:10,610 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:26:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-18 10:26:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:26:10,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:10,631 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:26:10,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:10,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:10,639 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2018-11-18 10:26:10,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:26:10,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:26:10,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:10,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:26:10,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:26:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:26:10,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:26:10,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:26:10,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:26:10,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:26:10,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:26:10,819 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-18 10:26:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:26:10,964 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-11-18 10:26:10,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:26:10,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-18 10:26:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:26:10,975 INFO L225 Difference]: With dead ends: 29 [2018-11-18 10:26:10,975 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:26:10,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:26:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:26:10,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 10:26:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 10:26:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 10:26:11,002 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 13 [2018-11-18 10:26:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:26:11,002 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 10:26:11,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:26:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 10:26:11,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:26:11,002 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:11,003 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:26:11,003 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:11,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:11,003 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2018-11-18 10:26:11,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:26:11,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:26:11,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:11,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:26:11,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:26:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:26:11,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:26:11,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:26:11,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:26:11,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:26:11,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:26:11,053 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-11-18 10:26:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:26:11,092 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-18 10:26:11,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:26:11,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-18 10:26:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:26:11,093 INFO L225 Difference]: With dead ends: 21 [2018-11-18 10:26:11,094 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:26:11,094 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:26:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:26:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 10:26:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 10:26:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-11-18 10:26:11,096 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2018-11-18 10:26:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:26:11,097 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-11-18 10:26:11,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:26:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-18 10:26:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:26:11,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:11,097 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:26:11,097 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:11,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1852956943, now seen corresponding path program 1 times [2018-11-18 10:26:11,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:26:11,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:26:11,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:11,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:26:11,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:26:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:26:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:26:11,133 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:26:11,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:26:11 BoogieIcfgContainer [2018-11-18 10:26:11,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:26:11,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:26:11,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:26:11,154 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:26:11,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:10" (3/4) ... [2018-11-18 10:26:11,157 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 10:26:11,185 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ecb6e54c-893e-4e5d-af7b-22b3d00043f8/bin-2019/uautomizer/witness.graphml [2018-11-18 10:26:11,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:26:11,186 INFO L168 Benchmark]: Toolchain (without parser) took 1039.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -123.0 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,187 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:26:11,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.44 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,188 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,188 INFO L168 Benchmark]: RCFGBuilder took 222.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,189 INFO L168 Benchmark]: TraceAbstraction took 607.78 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,189 INFO L168 Benchmark]: Witness Printer took 31.40 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:11,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.44 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 222.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 607.78 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * Witness Printer took 31.40 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] FCALL struct dummy d1, d2; [L13] int n = __VERIFIER_nondet_int(); [L14] COND FALSE, EXPR !(n ? &d1 : &d2) VAL [d1={11:0}, d2={10:0}, n=0, n ? &d1 : &d2={10:0}] [L14] struct dummy *pd = n ? &d1 : &d2; [L15] COND TRUE pd == &d2 [L16] FCALL pd->a = 0 VAL [d1={11:0}, d2={10:0}, n=0, pd={10:0}] [L20] pd == &d2 && d2.b != 0 [L20] EXPR, FCALL d2.b [L20] pd == &d2 && d2.b != 0 VAL [d1={11:0}, d2={10:0}, d2.b=12, n=0, pd={10:0}, pd == &d2 && d2.b != 0=1] [L20] COND TRUE pd == &d2 && d2.b != 0 [L26] __VERIFIER_error() VAL [d1={11:0}, d2={10:0}, n=0, pd={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 31 SDslu, 66 SDs, 0 SdLazy, 58 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...