./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8 --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 f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 --- 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-2329fc7 [2022-12-13 21:42:32,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:42:32,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:42:32,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:42:32,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:42:32,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:42:32,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:42:32,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:42:32,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:42:32,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:42:32,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:42:32,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:42:32,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:42:32,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:42:32,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:42:32,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:42:32,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:42:32,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:42:32,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:42:32,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:42:32,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:42:32,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:42:32,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:42:32,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:42:32,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:42:32,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:42:32,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:42:32,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:42:32,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:42:32,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:42:32,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:42:32,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:42:32,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:42:32,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:42:32,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:42:32,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:42:32,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:42:32,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:42:32,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:42:32,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:42:32,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:42:32,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:42:32,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:42:32,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:42:32,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:42:32,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:42:32,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:42:32,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:42:32,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:42:32,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:42:32,216 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:42:32,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:42:32,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:42:32,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:42:32,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:42:32,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:42:32,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:42:32,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:42:32,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:42:32,219 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:42:32,220 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2022-12-13 21:42:32,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:42:32,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:42:32,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:42:32,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:42:32,427 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:42:32,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2022-12-13 21:42:34,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:42:35,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:42:35,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2022-12-13 21:42:35,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/data/ab60244e6/9b613caedd7646caab33b2a26a8f0379/FLAG9c6d43381 [2022-12-13 21:42:35,523 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/data/ab60244e6/9b613caedd7646caab33b2a26a8f0379 [2022-12-13 21:42:35,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:42:35,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:42:35,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:42:35,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:42:35,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:42:35,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7ab61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35, skipping insertion in model container [2022-12-13 21:42:35,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:42:35,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:42:35,779 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_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2022-12-13 21:42:35,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:42:35,792 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:42:35,816 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_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2022-12-13 21:42:35,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:42:35,836 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:42:35,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35 WrapperNode [2022-12-13 21:42:35,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:42:35,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:42:35,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:42:35,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:42:35,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,862 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-13 21:42:35,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:42:35,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:42:35,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:42:35,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:42:35,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:42:35,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:42:35,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:42:35,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:42:35,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (1/1) ... [2022-12-13 21:42:35,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:42:35,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:35,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:42:35,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:42:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 21:42:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 21:42:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:42:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:42:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:42:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:42:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:42:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:42:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:42:35,941 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:42:36,042 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:42:36,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:42:36,176 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:42:36,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:42:36,183 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 21:42:36,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:42:36 BoogieIcfgContainer [2022-12-13 21:42:36,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:42:36,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:42:36,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:42:36,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:42:36,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:42:35" (1/3) ... [2022-12-13 21:42:36,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb97ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:42:36, skipping insertion in model container [2022-12-13 21:42:36,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:42:35" (2/3) ... [2022-12-13 21:42:36,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb97ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:42:36, skipping insertion in model container [2022-12-13 21:42:36,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:42:36" (3/3) ... [2022-12-13 21:42:36,195 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2022-12-13 21:42:36,204 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:42:36,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:42:36,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:42:36,216 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:42:36,284 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:42:36,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,363 INFO L130 PetriNetUnfolder]: 10/79 cut-off events. [2022-12-13 21:42:36,364 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:36,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 10/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2022-12-13 21:42:36,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,379 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:42:36,386 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,388 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 68 transitions, 141 flow [2022-12-13 21:42:36,402 INFO L130 PetriNetUnfolder]: 10/79 cut-off events. [2022-12-13 21:42:36,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:36,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 10/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2022-12-13 21:42:36,404 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2022-12-13 21:42:37,845 INFO L134 LiptonReduction]: Checked pairs total: 874 [2022-12-13 21:42:37,845 INFO L136 LiptonReduction]: Total number of compositions: 58 [2022-12-13 21:42:37,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:42:37,867 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;@3583ec87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:42:37,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 21:42:37,871 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2022-12-13 21:42:37,871 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:37,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:37,872 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 21:42:37,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:42:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash 487657056, now seen corresponding path program 1 times [2022-12-13 21:42:37,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:37,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794870689] [2022-12-13 21:42:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:42:37,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:42:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:42:38,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:42:38,020 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:42:38,021 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2022-12-13 21:42:38,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-13 21:42:38,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 21:42:38,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:42:38,023 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:42:38,025 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 21:42:38,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 21:42:38,050 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:42:38,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,074 INFO L130 PetriNetUnfolder]: 19/133 cut-off events. [2022-12-13 21:42:38,074 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 21:42:38,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 19/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 289 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 93. Up to 6 conditions per place. [2022-12-13 21:42:38,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,076 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:42:38,076 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,076 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 109 transitions, 230 flow [2022-12-13 21:42:38,091 INFO L130 PetriNetUnfolder]: 19/133 cut-off events. [2022-12-13 21:42:38,091 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 21:42:38,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 19/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 289 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 93. Up to 6 conditions per place. [2022-12-13 21:42:38,094 INFO L119 LiptonReduction]: Number of co-enabled transitions 5520 [2022-12-13 21:42:40,031 INFO L134 LiptonReduction]: Checked pairs total: 4040 [2022-12-13 21:42:40,031 INFO L136 LiptonReduction]: Total number of compositions: 92 [2022-12-13 21:42:40,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:42:40,034 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;@3583ec87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:42:40,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 21:42:40,038 INFO L130 PetriNetUnfolder]: 5/18 cut-off events. [2022-12-13 21:42:40,038 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:42:40,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:40,038 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:42:40,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-13 21:42:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:40,039 INFO L85 PathProgramCache]: Analyzing trace with hash -975495304, now seen corresponding path program 1 times [2022-12-13 21:42:40,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:40,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629149484] [2022-12-13 21:42:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:40,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:42:40,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:42:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:42:40,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:42:40,099 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:42:40,100 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 21:42:40,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-13 21:42:40,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 21:42:40,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 21:42:40,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:42:40,101 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:42:40,105 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-12-13 21:42:40,105 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:42:40,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:42:40 BasicIcfg [2022-12-13 21:42:40,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:42:40,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:42:40,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:42:40,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:42:40,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:42:36" (3/4) ... [2022-12-13 21:42:40,125 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 21:42:40,155 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da37667f-286e-43a6-bcf5-a1f8bbbe9d5a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:42:40,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:42:40,156 INFO L158 Benchmark]: Toolchain (without parser) took 4626.72ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 96.1MB in the beginning and 89.0MB in the end (delta: 7.1MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,156 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:42:40,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.39ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 76.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.31ms. Allocated memory is still 134.2MB. Free memory was 76.6MB in the beginning and 74.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,157 INFO L158 Benchmark]: Boogie Preprocessor took 16.80ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 73.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:42:40,158 INFO L158 Benchmark]: RCFGBuilder took 305.19ms. Allocated memory is still 134.2MB. Free memory was 73.6MB in the beginning and 60.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,158 INFO L158 Benchmark]: TraceAbstraction took 3933.90ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 59.9MB in the beginning and 92.1MB in the end (delta: -32.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,158 INFO L158 Benchmark]: Witness Printer took 32.19ms. Allocated memory is still 192.9MB. Free memory was 92.1MB in the beginning and 89.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:42:40,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.39ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 76.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.31ms. Allocated memory is still 134.2MB. Free memory was 76.6MB in the beginning and 74.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.80ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 73.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.19ms. Allocated memory is still 134.2MB. Free memory was 73.6MB in the beginning and 60.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3933.90ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 59.9MB in the beginning and 92.1MB in the end (delta: -32.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 32.19ms. Allocated memory is still 192.9MB. Free memory was 92.1MB in the beginning and 89.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 62 PlacesBefore, 15 PlacesAfterwards, 68 TransitionsBefore, 17 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 58 TotalNumberOfCompositions, 874 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 874, independent: 874, independent conditional: 0, independent unconditional: 874, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 550, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 874, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 97 PlacesBefore, 25 PlacesAfterwards, 109 TransitionsBefore, 30 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 7 ChoiceCompositions, 92 TotalNumberOfCompositions, 4040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4040, independent: 4040, independent conditional: 0, independent unconditional: 4040, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2646, independent: 2646, independent conditional: 0, independent unconditional: 2646, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4040, independent: 1394, independent conditional: 0, independent unconditional: 1394, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2646, unknown conditional: 0, unknown unconditional: 2646] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 pthread_t t; VAL [t={3:0}] [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, pthread_create(&t, 0, thr1, 0)=-1, t={3:0}] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [arg={0:0}, arg={0:0}, i=0, j=1, k=1, x=4294967296, y=4294967301, z=5] [L688] COND FALSE 1 !(i