./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.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_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84f62959dc20df3dcecaea8b03619fc02cb1358b ..................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 20:12:45,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:12:45,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:12:45,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:12:45,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:12:45,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:12:45,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:12:45,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:12:45,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:12:45,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:12:45,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:12:45,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:12:45,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:12:45,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:12:45,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:12:45,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:12:45,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:12:45,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:12:45,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:12:45,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:12:45,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:12:45,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:12:45,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:12:45,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:12:45,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:12:45,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:12:45,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:12:45,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:12:45,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:12:45,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:12:45,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:12:45,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:12:45,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:12:45,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:12:45,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:12:45,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:12:45,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:12:45,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:12:45,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:12:45,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:12:45,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:12:45,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:12:45,380 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:12:45,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:12:45,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:12:45,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:12:45,384 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:12:45,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:12:45,384 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:12:45,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:12:45,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:12:45,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:12:45,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:12:45,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:12:45,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:12:45,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:12:45,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:12:45,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:12:45,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:12:45,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:12:45,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:12:45,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:12:45,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:12:45,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:12:45,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:12:45,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:12:45,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:12:45,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:12:45,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:12:45,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:12:45,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:12:45,394 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_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-29 20:12:45,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:12:45,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:12:45,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:12:45,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:12:45,773 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:12:45,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-29 20:12:45,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/data/71f7c347d/9df4a9c473bc4bc29e8a8f97f79d8760/FLAGf0a907578 [2020-11-29 20:12:46,583 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:12:46,584 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-29 20:12:46,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/data/71f7c347d/9df4a9c473bc4bc29e8a8f97f79d8760/FLAGf0a907578 [2020-11-29 20:12:46,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/data/71f7c347d/9df4a9c473bc4bc29e8a8f97f79d8760 [2020-11-29 20:12:46,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:12:46,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:12:46,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:12:46,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:12:46,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:12:46,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:12:46" (1/1) ... [2020-11-29 20:12:46,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c635dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:46, skipping insertion in model container [2020-11-29 20:12:46,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:12:46" (1/1) ... [2020-11-29 20:12:46,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:12:46,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:12:47,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:12:47,506 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:12:47,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:12:47,704 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:12:47,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47 WrapperNode [2020-11-29 20:12:47,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:12:47,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:12:47,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:12:47,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:12:47,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:12:47,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:12:47,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:12:47,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:12:47,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... [2020-11-29 20:12:47,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:12:47,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:12:47,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:12:47,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:12:47,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:12:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 20:12:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 20:12:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:12:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 20:12:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:12:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 20:12:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:12:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:12:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:12:49,019 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:12:49,020 INFO L298 CfgBuilder]: Removed 92 assume(true) statements. [2020-11-29 20:12:49,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:49 BoogieIcfgContainer [2020-11-29 20:12:49,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:12:49,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:12:49,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:12:49,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:12:49,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:12:46" (1/3) ... [2020-11-29 20:12:49,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d23d589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:12:49, skipping insertion in model container [2020-11-29 20:12:49,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:47" (2/3) ... [2020-11-29 20:12:49,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d23d589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:12:49, skipping insertion in model container [2020-11-29 20:12:49,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:49" (3/3) ... [2020-11-29 20:12:49,033 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-11-29 20:12:49,047 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:12:49,052 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-29 20:12:49,073 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-29 20:12:49,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:12:49,151 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:12:49,151 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:12:49,151 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:12:49,152 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:12:49,152 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:12:49,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:12:49,152 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:12:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-29 20:12:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:12:49,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:49,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:49,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:49,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:49,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1790047856, now seen corresponding path program 1 times [2020-11-29 20:12:49,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:49,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416619079] [2020-11-29 20:12:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:12:49,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416619079] [2020-11-29 20:12:49,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:49,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:12:49,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358154112] [2020-11-29 20:12:49,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:12:49,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:49,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:12:49,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:12:49,423 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-29 20:12:49,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:49,454 INFO L93 Difference]: Finished difference Result 187 states and 264 transitions. [2020-11-29 20:12:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:12:49,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-29 20:12:49,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:49,468 INFO L225 Difference]: With dead ends: 187 [2020-11-29 20:12:49,469 INFO L226 Difference]: Without dead ends: 89 [2020-11-29 20:12:49,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:12:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-29 20:12:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-29 20:12:49,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 20:12:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2020-11-29 20:12:49,519 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 15 [2020-11-29 20:12:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:49,520 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2020-11-29 20:12:49,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:12:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2020-11-29 20:12:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:12:49,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:49,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:49,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:12:49,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:49,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1166744709, now seen corresponding path program 1 times [2020-11-29 20:12:49,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:49,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968358704] [2020-11-29 20:12:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:12:49,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968358704] [2020-11-29 20:12:49,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:49,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:12:49,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873215086] [2020-11-29 20:12:49,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:12:49,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:49,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:12:49,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:12:49,670 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand 4 states. [2020-11-29 20:12:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:49,857 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2020-11-29 20:12:49,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:12:49,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-29 20:12:49,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:49,867 INFO L225 Difference]: With dead ends: 145 [2020-11-29 20:12:49,867 INFO L226 Difference]: Without dead ends: 139 [2020-11-29 20:12:49,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:12:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-29 20:12:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 93. [2020-11-29 20:12:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-29 20:12:49,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2020-11-29 20:12:49,887 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 15 [2020-11-29 20:12:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:49,888 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2020-11-29 20:12:49,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:12:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2020-11-29 20:12:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:12:49,889 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:49,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:49,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:12:49,890 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1116874575, now seen corresponding path program 1 times [2020-11-29 20:12:49,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:49,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167823634] [2020-11-29 20:12:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:12:50,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167823634] [2020-11-29 20:12:50,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:50,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:12:50,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127809867] [2020-11-29 20:12:50,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:12:50,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:50,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:12:50,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:12:50,069 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand 4 states. [2020-11-29 20:12:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:50,470 INFO L93 Difference]: Finished difference Result 250 states and 294 transitions. [2020-11-29 20:12:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:12:50,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-29 20:12:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:50,473 INFO L225 Difference]: With dead ends: 250 [2020-11-29 20:12:50,473 INFO L226 Difference]: Without dead ends: 166 [2020-11-29 20:12:50,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:12:50,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-29 20:12:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 105. [2020-11-29 20:12:50,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-29 20:12:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2020-11-29 20:12:50,508 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 15 [2020-11-29 20:12:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:50,508 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2020-11-29 20:12:50,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:12:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2020-11-29 20:12:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:12:50,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:50,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:50,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:12:50,511 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash -293940095, now seen corresponding path program 1 times [2020-11-29 20:12:50,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:50,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481013621] [2020-11-29 20:12:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:12:50,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:12:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:12:50,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:12:50,866 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:12:50,867 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:12:50,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:12:50,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:12:50 BoogieIcfgContainer [2020-11-29 20:12:50,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:12:50,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:12:50,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:12:50,962 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:12:50,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:49" (3/4) ... [2020-11-29 20:12:50,965 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:12:51,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_881dc6fc-e28d-4d7e-afd0-92e6beb2c7b8/bin/uautomizer/witness.graphml [2020-11-29 20:12:51,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:12:51,037 INFO L168 Benchmark]: Toolchain (without parser) took 4241.96 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 69.4 MB in the beginning and 69.2 MB in the end (delta: 212.4 kB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,037 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:51,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 908.97 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 58.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.93 ms. Allocated memory is still 100.7 MB. Free memory was 58.0 MB in the beginning and 54.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,041 INFO L168 Benchmark]: Boogie Preprocessor took 70.71 ms. Allocated memory is still 100.7 MB. Free memory was 54.7 MB in the beginning and 51.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,042 INFO L168 Benchmark]: RCFGBuilder took 1142.25 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 51.4 MB in the beginning and 58.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,049 INFO L168 Benchmark]: TraceAbstraction took 1936.15 ms. Allocated memory is still 121.6 MB. Free memory was 57.3 MB in the beginning and 74.3 MB in the end (delta: -17.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:51,049 INFO L168 Benchmark]: Witness Printer took 72.96 ms. Allocated memory is still 121.6 MB. Free memory was 74.3 MB in the beginning and 69.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:51,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 908.97 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 58.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.93 ms. Allocated memory is still 100.7 MB. Free memory was 58.0 MB in the beginning and 54.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.71 ms. Allocated memory is still 100.7 MB. Free memory was 54.7 MB in the beginning and 51.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1142.25 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 51.4 MB in the beginning and 58.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1936.15 ms. Allocated memory is still 121.6 MB. Free memory was 57.3 MB in the beginning and 74.3 MB in the end (delta: -17.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 72.96 ms. Allocated memory is still 121.6 MB. Free memory was 74.3 MB in the beginning and 69.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={6:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={6:0}] [L660] return 0; VAL [mutexes={6:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={6:0}] [L660] return 0; VAL [mutexes={6:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L608] head->next [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={6:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={6:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={6:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L562] COND FALSE !(0) VAL [mutexes={6:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [mutexes={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 199 SDslu, 300 SDs, 0 SdLazy, 97 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 107 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...