./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ccae6f392e1d87c0b193f39dee91a5c51306cb93 ........................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:57:09,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:09,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:09,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:09,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:09,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:09,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:09,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:09,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:09,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:09,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:09,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:09,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:09,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:09,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:09,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:09,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:09,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:09,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:09,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:09,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:09,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:09,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:09,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:09,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:09,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:09,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:09,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:09,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:09,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:09,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:09,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:09,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:09,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:09,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:09,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:09,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:09,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:09,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:09,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:09,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:09,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:57:09,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:09,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:09,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:09,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:57:09,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:57:09,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:57:09,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:09,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:09,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:09,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:09,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:09,641 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:57:09,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:09,642 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:57:09,642 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:57:09,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:09,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:09,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:57:09,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:09,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:09,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:09,643 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:57:09,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:09,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:09,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak 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 -> Kojak 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 -> ccae6f392e1d87c0b193f39dee91a5c51306cb93 [2019-11-26 02:57:09,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:09,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:09,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:09,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:09,830 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:09,830 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2019-11-26 02:57:09,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/data/6c7754602/60231ce0deff4040bac84d9f855a4eb9/FLAG59b2b37e1 [2019-11-26 02:57:10,240 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:10,241 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2019-11-26 02:57:10,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/data/6c7754602/60231ce0deff4040bac84d9f855a4eb9/FLAG59b2b37e1 [2019-11-26 02:57:10,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/data/6c7754602/60231ce0deff4040bac84d9f855a4eb9 [2019-11-26 02:57:10,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:10,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:10,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:10,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:10,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:10,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217d9c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10, skipping insertion in model container [2019-11-26 02:57:10,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:10,712 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:10,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:10,857 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:10,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:10,937 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:10,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10 WrapperNode [2019-11-26 02:57:10,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:10,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:10,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:10,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:10,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:10,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:10,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:10,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:10,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... [2019-11-26 02:57:10,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:10,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:10,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:10,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:10,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-11-26 02:57:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure A [2019-11-26 02:57:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure A [2019-11-26 02:57:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:11,204 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:11,204 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:57:11,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:11 BoogieIcfgContainer [2019-11-26 02:57:11,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:11,206 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:57:11,206 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:57:11,216 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:57:11,216 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:11" (1/1) ... [2019-11-26 02:57:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:57:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2019-11-26 02:57:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-26 02:57:11,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:57:11,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:57:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:57:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:57:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2019-11-26 02:57:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-26 02:57:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:57:11,676 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:57:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:11,823 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-11-26 02:57:11,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:57:11 ImpRootNode [2019-11-26 02:57:11,869 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:57:11,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:11,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:11,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:11,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:11" (3/4) ... [2019-11-26 02:57:11,872 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:57:11,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5afcb894-6273-47d0-8ae8-7ba249bb47e6/bin/ukojak/witness.graphml [2019-11-26 02:57:11,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:11,913 INFO L168 Benchmark]: Toolchain (without parser) took 1228.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:11,913 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:11,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:11,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:11,914 INFO L168 Benchmark]: Boogie Preprocessor took 14.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:11,924 INFO L168 Benchmark]: RCFGBuilder took 226.29 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:11,924 INFO L168 Benchmark]: CodeCheck took 663.02 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:11,925 INFO L168 Benchmark]: Witness Printer took 41.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:11,927 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 21 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int g; [L26] int g = __VERIFIER_nondet_int(); [L27] int h = !g; VAL [g=0] [L28] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, g=0] [L17] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=0] [L18] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, g=0] [L17] COND FALSE !(\read(a1)) [L20] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, a1=0, a2=-1, g=-1] [L18] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L28] RET A(g,h) VAL [g=-1] [L29] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, g=-1] [L17] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1] [L18] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, g=-1] [L17] COND FALSE !(\read(a1)) [L20] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, a1=0, a2=-1, g=-1] [L18] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L29] RET A(g,h) VAL [g=-1] [L30] COND TRUE \read(g) VAL [g=-1] [L31] __VERIFIER_error() VAL [g=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 226.29 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * CodeCheck took 663.02 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...