./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i --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_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/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 c976dd79cabe443ac09b5b35c5674998e922b27b ............................................................................................................................................................................................................................... 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 11:23:42,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 11:23:42,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 11:23:42,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 11:23:42,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 11:23:42,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 11:23:42,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 11:23:42,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 11:23:42,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 11:23:42,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 11:23:42,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 11:23:42,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 11:23:42,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 11:23:42,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 11:23:42,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 11:23:42,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 11:23:42,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 11:23:42,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 11:23:42,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 11:23:42,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 11:23:42,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 11:23:42,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 11:23:42,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 11:23:42,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 11:23:42,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 11:23:42,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 11:23:42,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 11:23:42,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 11:23:42,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 11:23:42,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 11:23:42,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 11:23:42,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 11:23:42,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 11:23:42,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 11:23:42,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 11:23:42,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 11:23:42,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 11:23:42,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 11:23:42,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 11:23:42,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 11:23:42,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 11:23:42,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 11:23:42,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 11:23:42,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 11:23:42,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 11:23:42,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 11:23:42,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 11:23:42,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 11:23:42,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 11:23:42,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 11:23:42,905 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 11:23:42,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 11:23:42,905 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 11:23:42,905 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 11:23:42,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 11:23:42,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 11:23:42,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 11:23:42,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 11:23:42,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 11:23:42,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 11:23:42,906 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 11:23:42,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 11:23:42,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 11:23:42,907 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_6619094e-5596-4af6-931b-7c946c2de24b/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 -> c976dd79cabe443ac09b5b35c5674998e922b27b [2019-12-01 11:23:43,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 11:23:43,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 11:23:43,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 11:23:43,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 11:23:43,026 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 11:23:43,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2019-12-01 11:23:43,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/data/107c05d03/c5e4bde014664743b9a62fda0d24001a/FLAG972acd4d5 [2019-12-01 11:23:43,409 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 11:23:43,409 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2019-12-01 11:23:43,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/data/107c05d03/c5e4bde014664743b9a62fda0d24001a/FLAG972acd4d5 [2019-12-01 11:23:43,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/data/107c05d03/c5e4bde014664743b9a62fda0d24001a [2019-12-01 11:23:43,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 11:23:43,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 11:23:43,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 11:23:43,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 11:23:43,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 11:23:43,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f27cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43, skipping insertion in model container [2019-12-01 11:23:43,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 11:23:43,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 11:23:43,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:23:43,577 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 11:23:43,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:23:43,596 INFO L208 MainTranslator]: Completed translation [2019-12-01 11:23:43,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43 WrapperNode [2019-12-01 11:23:43,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 11:23:43,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 11:23:43,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 11:23:43,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 11:23:43,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 11:23:43,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 11:23:43,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 11:23:43,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 11:23:43,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 11:23:43,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 11:23:43,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 11:23:43,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 11:23:43,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:23:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/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 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-12-01 11:23:43,670 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-12-01 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-12-01 11:23:43,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-12-01 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 11:23:43,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 11:23:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 11:23:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 11:23:43,792 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 11:23:43,792 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 11:23:43,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:23:43 BoogieIcfgContainer [2019-12-01 11:23:43,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 11:23:43,794 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 11:23:43,794 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 11:23:43,800 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 11:23:43,801 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:23:43" (1/1) ... [2019-12-01 11:23:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 11:23:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:23:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2019-12-01 11:23:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-01 11:23:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:23:43,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:23:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:23:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:23:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:23:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2019-12-01 11:23:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-01 11:23:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:23:43,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:23:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:23:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:23:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:23:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:23:44,056 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-12-01 11:23:44,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:23:44 ImpRootNode [2019-12-01 11:23:44,077 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 11:23:44,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 11:23:44,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 11:23:44,078 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 11:23:44,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:23:43" (3/4) ... [2019-12-01 11:23:44,080 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 11:23:44,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6619094e-5596-4af6-931b-7c946c2de24b/bin/ukojak/witness.graphml [2019-12-01 11:23:44,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 11:23:44,114 INFO L168 Benchmark]: Toolchain (without parser) took 688.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -95.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-01 11:23:44,115 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 11:23:44,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-01 11:23:44,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.64 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 11:23:44,116 INFO L168 Benchmark]: Boogie Preprocessor took 11.44 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 11:23:44,116 INFO L168 Benchmark]: RCFGBuilder took 163.39 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-01 11:23:44,117 INFO L168 Benchmark]: CodeCheck took 284.06 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-12-01 11:23:44,118 INFO L168 Benchmark]: Witness Printer took 34.93 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-01 11:23:44,120 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 3 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L30] int m; [L31] m = 0 [L33] CALL mutex_lock(&m) VAL [a={2:0}] [L18] EXPR \read(*a) VAL [\read(*a)=0, a={2:0}, a={2:0}] [L18] COND FALSE !(*a == 1) [L19] *a = 1 [L33] RET mutex_lock(&m) [L37] CALL mutex_lock(&m) VAL [a={2:0}] [L18] EXPR \read(*a) VAL [\read(*a)=1, a={2:0}, a={2:0}] [L18] COND TRUE *a == 1 [L18] CALL err() [L14] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.64 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 11.44 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. * RCFGBuilder took 163.39 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 284.06 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.93 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...