./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdaaa62c12cda1d5ef1bfbfdcef4ae5f9da69605 .......................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 04:37:26,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:26,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:26,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:26,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:26,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:26,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:26,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:26,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:26,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:26,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:26,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:26,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:26,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:26,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:26,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:26,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:26,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:26,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:26,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:26,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:26,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:26,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:26,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:26,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:26,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:26,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:26,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:26,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:26,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:26,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:26,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:26,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:26,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:26,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:26,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:26,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:26,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:26,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:26,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:26,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:26,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:26,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:26,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:26,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:26,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:26,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:26,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:26,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:26,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:26,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:26,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:26,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:26,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:26,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:26,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:26,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:26,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:26,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:26,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:26,368 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:26,368 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:26,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:26,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:26,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:26,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:26,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:26,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:26,370 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:26,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:26,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:26,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdaaa62c12cda1d5ef1bfbfdcef4ae5f9da69605 [2020-11-28 04:37:26,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:26,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:26,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:26,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:26,750 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:26,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2020-11-28 04:37:26,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/data/3eced4cd5/4294e83b465c487b9553e406f4a69ed7/FLAGf60483681 [2020-11-28 04:37:27,277 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:27,278 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2020-11-28 04:37:27,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/data/3eced4cd5/4294e83b465c487b9553e406f4a69ed7/FLAGf60483681 [2020-11-28 04:37:27,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/data/3eced4cd5/4294e83b465c487b9553e406f4a69ed7 [2020-11-28 04:37:27,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:27,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:27,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:27,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:27,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:27,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:27,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c610c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27, skipping insertion in model container [2020-11-28 04:37:27,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:27,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:27,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:27,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:27,895 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:27,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:27,938 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:27,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27 WrapperNode [2020-11-28 04:37:27,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:27,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:27,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:27,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:27,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:27,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:27,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:27,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:27,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:27,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:28,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... [2020-11-28 04:37:28,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:28,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:28,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:28,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:28,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/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 [2020-11-28 04:37:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-11-28 04:37:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-11-28 04:37:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:37:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-11-28 04:37:28,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-11-28 04:37:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:28,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:37:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:37:28,512 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:28,512 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:37:28,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:28 BoogieIcfgContainer [2020-11-28 04:37:28,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:28,515 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:28,516 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:28,525 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:28,525 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-11-28 04:37:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 04:37:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:37:28,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2020-11-28 04:37:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-28 04:37:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:37:28,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:28,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:29,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:29,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:29,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:29,124 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:37:29,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:29 ImpRootNode [2020-11-28 04:37:29,166 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:29,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:29,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:29,167 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:29,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:28" (3/4) ... [2020-11-28 04:37:29,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:37:29,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a8bdfe9e-f76a-44de-aed3-946bc51abe1b/bin/ukojak/witness.graphml [2020-11-28 04:37:29,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:29,252 INFO L168 Benchmark]: Toolchain (without parser) took 1584.30 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 55.3 MB in the beginning and 59.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,253 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.24 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 63.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.37 ms. Allocated memory is still 83.9 MB. Free memory was 63.0 MB in the beginning and 61.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,254 INFO L168 Benchmark]: Boogie Preprocessor took 36.80 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 60.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,255 INFO L168 Benchmark]: RCFGBuilder took 484.25 ms. Allocated memory is still 83.9 MB. Free memory was 60.6 MB in the beginning and 46.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,256 INFO L168 Benchmark]: CodeCheck took 650.51 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.7 MB in the beginning and 61.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,256 INFO L168 Benchmark]: Witness Printer took 78.12 ms. Allocated memory is still 100.7 MB. Free memory was 61.4 MB in the beginning and 59.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,259 INFO L339 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. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32] int m; [L33] m = 0 [L35] CALL mutex_lock(&m) VAL [a={10454:0}] [L20] EXPR \read(*a) VAL [\read(*a)=0, a={10454:0}, a={10454:0}] [L20] COND FALSE !(*a == 1) [L21] *a = 1 [L35] RET mutex_lock(&m) [L39] CALL mutex_lock(&m) VAL [a={10454:0}] [L20] EXPR \read(*a) VAL [\read(*a)=1, a={10454:0}, a={10454:0}] [L20] COND TRUE *a == 1 [L20] CALL err() [L3] __assert_fail("0", "mutex_lock_int.i", 3, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.24 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 63.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.37 ms. Allocated memory is still 83.9 MB. Free memory was 63.0 MB in the beginning and 61.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.80 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 60.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 484.25 ms. Allocated memory is still 83.9 MB. Free memory was 60.6 MB in the beginning and 46.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 650.51 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.7 MB in the beginning and 61.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Witness Printer took 78.12 ms. Allocated memory is still 100.7 MB. Free memory was 61.4 MB in the beginning and 59.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...