./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/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 54c9c3f123e280a35d761deadfd537de0a28f053 ........................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-01 07:05:42,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 07:05:42,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 07:05:42,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 07:05:42,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 07:05:42,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 07:05:42,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 07:05:42,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 07:05:42,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 07:05:42,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 07:05:42,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 07:05:42,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 07:05:42,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 07:05:42,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 07:05:42,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 07:05:42,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 07:05:42,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 07:05:42,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 07:05:42,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 07:05:42,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 07:05:42,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 07:05:42,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 07:05:42,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 07:05:42,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 07:05:42,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 07:05:42,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 07:05:42,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 07:05:42,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 07:05:42,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 07:05:42,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 07:05:42,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 07:05:42,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 07:05:42,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 07:05:42,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 07:05:42,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 07:05:42,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 07:05:42,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 07:05:42,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 07:05:42,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 07:05:42,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 07:05:42,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 07:05:42,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 07:05:42,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 07:05:42,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 07:05:42,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 07:05:42,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 07:05:42,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 07:05:42,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 07:05:42,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 07:05:42,990 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 07:05:42,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 07:05:42,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 07:05:42,991 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 07:05:42,991 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 07:05:42,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 07:05:42,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 07:05:42,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 07:05:42,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 07:05:42,993 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_68134c7c-3512-4711-9b76-a7c9ada7cec2/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 -> 54c9c3f123e280a35d761deadfd537de0a28f053 [2019-12-01 07:05:43,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 07:05:43,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 07:05:43,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 07:05:43,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 07:05:43,106 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 07:05:43,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test22-2.c [2019-12-01 07:05:43,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/data/ebe519356/7b677939344a488e8667f7e8eb5769ce/FLAG9e9ac12f4 [2019-12-01 07:05:43,517 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 07:05:43,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/sv-benchmarks/c/ldv-regression/test22-2.c [2019-12-01 07:05:43,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/data/ebe519356/7b677939344a488e8667f7e8eb5769ce/FLAG9e9ac12f4 [2019-12-01 07:05:43,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/data/ebe519356/7b677939344a488e8667f7e8eb5769ce [2019-12-01 07:05:43,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 07:05:43,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 07:05:43,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 07:05:43,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 07:05:43,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 07:05:43,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:05:43" (1/1) ... [2019-12-01 07:05:43,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b211656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:43, skipping insertion in model container [2019-12-01 07:05:43,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:05:43" (1/1) ... [2019-12-01 07:05:43,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 07:05:43,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 07:05:44,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 07:05:44,074 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 07:05:44,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 07:05:44,096 INFO L208 MainTranslator]: Completed translation [2019-12-01 07:05:44,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44 WrapperNode [2019-12-01 07:05:44,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 07:05:44,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 07:05:44,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 07:05:44,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 07:05:44,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 07:05:44,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 07:05:44,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 07:05:44,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 07:05:44,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 07:05:44,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 07:05:44,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 07:05:44,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 07:05:44,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/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 [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-12-01 07:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 07:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 07:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 07:05:44,376 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 07:05:44,376 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-01 07:05:44,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:44 BoogieIcfgContainer [2019-12-01 07:05:44,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 07:05:44,377 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 07:05:44,377 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 07:05:44,386 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 07:05:44,386 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:44" (1/1) ... [2019-12-01 07:05:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 07:05:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 07:05:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-12-01 07:05:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-12-01 07:05:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 07:05:44,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 07:05:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 07:05:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-01 07:05:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 07:05:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2019-12-01 07:05:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-12-01 07:05:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 07:05:44,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 07:05:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 07:05:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 07:05:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 07:05:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 07:05:44,700 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-12-01 07:05:44,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 07:05:44 ImpRootNode [2019-12-01 07:05:44,736 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 07:05:44,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 07:05:44,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 07:05:44,737 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 07:05:44,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:44" (3/4) ... [2019-12-01 07:05:44,739 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 07:05:44,774 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_68134c7c-3512-4711-9b76-a7c9ada7cec2/bin/ukojak/witness.graphml [2019-12-01 07:05:44,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 07:05:44,776 INFO L168 Benchmark]: Toolchain (without parser) took 867.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.0 GB in the end (delta: -90.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,776 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 07:05:44,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 07:05:44,777 INFO L168 Benchmark]: Boogie Preprocessor took 16.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,777 INFO L168 Benchmark]: RCFGBuilder took 237.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,778 INFO L168 Benchmark]: CodeCheck took 359.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,778 INFO L168 Benchmark]: Witness Printer took 37.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 07:05:44,780 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, 19 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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: 48]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] struct dummy d1, d2; [L13] d1.a = __VERIFIER_nondet_int() [L14] d1.b = __VERIFIER_nondet_int() [L16] d2.a = __VERIFIER_nondet_int() [L17] d2.b = __VERIFIER_nondet_int() [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L34] int i = __VERIFIER_nondet_int(); [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L35] EXPR (*pd2).a [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={2:0}, d2={3:0}] [L35] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L36] int *pa = &pd1->a; [L37] EXPR pd3->a [L37] i = pd3->a - 10 [L38] EXPR \read(*pa) VAL [d1={2:0}, d2={3:0}] [L38] COND FALSE !(i < *pa) [L27] EXPR s1->a [L27] return s1->a == i; [L41] COND TRUE !check(pd2, i) [L48] __VERIFIER_error() VAL [d1={2:0}, d2={3:0}] * 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 237.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * CodeCheck took 359.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 37.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...