./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN --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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:37:17,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:37:17,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:37:17,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:37:17,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:37:17,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:37:17,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:37:17,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:37:17,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:37:17,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:37:17,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:37:17,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:37:17,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:37:17,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:37:17,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:37:17,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:37:17,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:37:17,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:37:17,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:37:17,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:37:17,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:37:17,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:37:17,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:37:17,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:37:17,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:37:17,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:37:17,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:37:17,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:37:17,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:37:17,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:37:17,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:37:17,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:37:17,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:37:17,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:37:17,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:37:17,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:37:17,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:37:17,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:37:17,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:37:17,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:37:17,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:37:17,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:37:17,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:37:17,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:37:17,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:37:17,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:37:17,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:37:17,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:37:17,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:37:17,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:37:17,401 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:37:17,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:37:17,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:37:17,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:37:17,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:37:17,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:37:17,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:37:17,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:37:17,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:37:17,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:37:17,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:37:17,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:37:17,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:37:17,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:37:17,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:37:17,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:37:17,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:37:17,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:37:17,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:37:17,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:37:17,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:37:17,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:37:17,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:37:17,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:37:17,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:37:17,406 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_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2022-11-20 12:37:17,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:37:17,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:37:17,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:37:17,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:37:17,776 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:37:17,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-20 12:37:20,811 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:37:21,118 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:37:21,119 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-20 12:37:21,134 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/data/9fd4a796c/53f2598b2c80454792f6b82ae1c3251c/FLAG49bc88774 [2022-11-20 12:37:21,160 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/data/9fd4a796c/53f2598b2c80454792f6b82ae1c3251c [2022-11-20 12:37:21,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:37:21,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:37:21,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:37:21,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:37:21,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:37:21,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e73d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21, skipping insertion in model container [2022-11-20 12:37:21,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:37:21,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:37:21,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-20 12:37:21,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:37:21,623 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:37:21,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-20 12:37:21,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:37:21,694 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:37:21,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21 WrapperNode [2022-11-20 12:37:21,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:37:21,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:37:21,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:37:21,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:37:21,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,737 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 12:37:21,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:37:21,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:37:21,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:37:21,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:37:21,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,759 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:37:21,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:37:21,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:37:21,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:37:21,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (1/1) ... [2022-11-20 12:37:21,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:37:21,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:37:21,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:37:21,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:37:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:37:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:37:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:37:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:37:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:37:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:37:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:37:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:37:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:37:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:37:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:37:21,886 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:37:22,029 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:37:22,031 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:37:22,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:37:22,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:37:22,382 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 12:37:22,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:22 BoogieIcfgContainer [2022-11-20 12:37:22,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:37:22,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:37:22,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:37:22,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:37:22,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:37:21" (1/3) ... [2022-11-20 12:37:22,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcc807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:22, skipping insertion in model container [2022-11-20 12:37:22,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:37:21" (2/3) ... [2022-11-20 12:37:22,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcc807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:22, skipping insertion in model container [2022-11-20 12:37:22,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:22" (3/3) ... [2022-11-20 12:37:22,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-11-20 12:37:22,404 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:37:22,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:37:22,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:37:22,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:37:22,470 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 12:37:22,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 108 transitions, 224 flow [2022-11-20 12:37:22,563 INFO L130 PetriNetUnfolder]: 9/107 cut-off events. [2022-11-20 12:37:22,563 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:37:22,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 9/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 57. Up to 3 conditions per place. [2022-11-20 12:37:22,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 108 transitions, 224 flow [2022-11-20 12:37:22,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 97 transitions, 197 flow [2022-11-20 12:37:22,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:37:22,591 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@602ab313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:37:22,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 12:37:22,638 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-20 12:37:22,643 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:37:22,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:37:22,644 INFO L209 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:22,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:37:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1331683409, now seen corresponding path program 1 times [2022-11-20 12:37:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:37:22,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219606851] [2022-11-20 12:37:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:37:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:37:23,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:37:23,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219606851] [2022-11-20 12:37:23,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219606851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:23,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:23,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:37:23,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200224959] [2022-11-20 12:37:23,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:23,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:37:23,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:37:23,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:37:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:37:23,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 108 [2022-11-20 12:37:23,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 97 transitions, 197 flow. Second operand has 9 states, 9 states have (on average 55.77777777777778) internal successors, (502), 9 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:23,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:37:23,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 108 [2022-11-20 12:37:23,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:37:24,030 INFO L130 PetriNetUnfolder]: 41/306 cut-off events. [2022-11-20 12:37:24,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:37:24,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 306 events. 41/306 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1404 event pairs, 10 based on Foata normal form. 96/399 useless extension candidates. Maximal degree in co-relation 370. Up to 29 conditions per place. [2022-11-20 12:37:24,034 INFO L137 encePairwiseOnDemand]: 89/108 looper letters, 34 selfloop transitions, 4 changer transitions 38/118 dead transitions. [2022-11-20 12:37:24,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 118 transitions, 383 flow [2022-11-20 12:37:24,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:37:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 12:37:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 842 transitions. [2022-11-20 12:37:24,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5568783068783069 [2022-11-20 12:37:24,053 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 842 transitions. [2022-11-20 12:37:24,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 842 transitions. [2022-11-20 12:37:24,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:37:24,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 842 transitions. [2022-11-20 12:37:24,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.142857142857146) internal successors, (842), 14 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,095 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,097 INFO L175 Difference]: Start difference. First operand has 92 places, 97 transitions, 197 flow. Second operand 14 states and 842 transitions. [2022-11-20 12:37:24,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 118 transitions, 383 flow [2022-11-20 12:37:24,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 118 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:37:24,105 INFO L231 Difference]: Finished difference. Result has 110 places, 80 transitions, 186 flow [2022-11-20 12:37:24,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=186, PETRI_PLACES=110, PETRI_TRANSITIONS=80} [2022-11-20 12:37:24,111 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 18 predicate places. [2022-11-20 12:37:24,112 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 80 transitions, 186 flow [2022-11-20 12:37:24,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 55.77777777777778) internal successors, (502), 9 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:37:24,113 INFO L209 CegarLoopForPetriNet]: 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, 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, 1, 1, 1, 1, 1] [2022-11-20 12:37:24,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:37:24,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:37:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash 37163589, now seen corresponding path program 1 times [2022-11-20 12:37:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:37:24,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060733896] [2022-11-20 12:37:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:37:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:37:24,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:37:24,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060733896] [2022-11-20 12:37:24,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060733896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:24,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:24,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:37:24,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850664179] [2022-11-20 12:37:24,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:24,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:37:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:37:24,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:37:24,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:37:24,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 108 [2022-11-20 12:37:24,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 80 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:37:24,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 108 [2022-11-20 12:37:24,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:37:24,583 INFO L130 PetriNetUnfolder]: 8/135 cut-off events. [2022-11-20 12:37:24,583 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 12:37:24,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 135 events. 8/135 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 186 event pairs, 4 based on Foata normal form. 4/139 useless extension candidates. Maximal degree in co-relation 192. Up to 20 conditions per place. [2022-11-20 12:37:24,595 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 16 selfloop transitions, 7 changer transitions 1/83 dead transitions. [2022-11-20 12:37:24,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 83 transitions, 240 flow [2022-11-20 12:37:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:37:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 12:37:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 397 transitions. [2022-11-20 12:37:24,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7351851851851852 [2022-11-20 12:37:24,597 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 397 transitions. [2022-11-20 12:37:24,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 397 transitions. [2022-11-20 12:37:24,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:37:24,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 397 transitions. [2022-11-20 12:37:24,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,602 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,602 INFO L175 Difference]: Start difference. First operand has 110 places, 80 transitions, 186 flow. Second operand 5 states and 397 transitions. [2022-11-20 12:37:24,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 83 transitions, 240 flow [2022-11-20 12:37:24,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 220 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-11-20 12:37:24,607 INFO L231 Difference]: Finished difference. Result has 88 places, 80 transitions, 180 flow [2022-11-20 12:37:24,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=88, PETRI_TRANSITIONS=80} [2022-11-20 12:37:24,608 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, -4 predicate places. [2022-11-20 12:37:24,608 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 80 transitions, 180 flow [2022-11-20 12:37:24,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:37:24,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:37:24,609 INFO L209 CegarLoopForPetriNet]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:24,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:37:24,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:37:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash -587546771, now seen corresponding path program 1 times [2022-11-20 12:37:24,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:37:24,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633414150] [2022-11-20 12:37:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:24,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:37:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:37:24,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:37:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:37:24,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:37:24,710 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:37:24,711 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 12:37:24,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-20 12:37:24,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:37:24,713 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 12:37:24,719 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:37:24,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:37:24,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:37:24 BasicIcfg [2022-11-20 12:37:24,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:37:24,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:37:24,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:37:24,773 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:37:24,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:22" (3/4) ... [2022-11-20 12:37:24,790 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:37:24,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:37:24,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:37:24,877 INFO L158 Benchmark]: Toolchain (without parser) took 3702.66ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 120.8MB in the beginning and 148.7MB in the end (delta: -28.0MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,877 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:37:24,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.70ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 115.8MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.22ms. Allocated memory is still 155.2MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,878 INFO L158 Benchmark]: Boogie Preprocessor took 29.80ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,879 INFO L158 Benchmark]: RCFGBuilder took 615.99ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 97.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,879 INFO L158 Benchmark]: TraceAbstraction took 2385.71ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 97.0MB in the beginning and 76.1MB in the end (delta: 20.8MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,880 INFO L158 Benchmark]: Witness Printer took 102.91ms. Allocated memory is still 186.6MB. Free memory was 76.1MB in the beginning and 148.7MB in the end (delta: -72.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-20 12:37:24,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.70ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 115.8MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.22ms. Allocated memory is still 155.2MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.80ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.99ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 97.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2385.71ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 97.0MB in the beginning and 76.1MB in the end (delta: 20.8MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. * Witness Printer took 102.91ms. Allocated memory is still 186.6MB. Free memory was 76.1MB in the beginning and 148.7MB in the end (delta: -72.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 691]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}] [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}] [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}, mutex2={5:0}] [L707] 0 pthread_t id; VAL [__global_lock={3:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [L708] 0 int i = 0; VAL [__global_lock={3:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L700] 1 int *p = (int *) arg; VAL [__global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] EXPR 1 \read(*p) VAL [\read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] EXPR 0 \read(i) VAL [\read(i)=1, __global_lock={3:0}, arg={6:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) VAL [\old(cond)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L691] 0 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 151 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 40 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-11-20 12:37:24,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cce2bf55-9dec-45a9-b360-b1e0542d12c9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE