./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro --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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- 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-8393723 [2022-11-18 20:01:03,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:01:03,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:01:03,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:01:03,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:01:03,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:01:03,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:01:03,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:01:03,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:01:03,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:01:03,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:01:03,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:01:03,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:01:03,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:01:03,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:01:03,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:01:03,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:01:03,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:01:03,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:01:03,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:01:03,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:01:03,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:01:03,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:01:03,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:01:03,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:01:03,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:01:03,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:01:03,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:01:03,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:01:03,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:01:03,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:01:03,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:01:03,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:01:03,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:01:03,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:01:03,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:01:03,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:01:03,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:01:03,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:01:03,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:01:03,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:01:03,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:01:03,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:01:03,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:01:03,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:01:03,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:01:03,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:01:03,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:01:03,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:01:03,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:01:03,971 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:01:03,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:01:03,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:01:03,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:01:03,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:01:03,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:01:03,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:01:03,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:01:03,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:01:03,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:01:03,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:01:03,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:01:03,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:01:03,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:01:03,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:01:03,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:01:03,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:01:03,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:01:03,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:01:03,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:01:03,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:01:03,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:01:03,979 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:01:03,979 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:01:03,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:01:03,980 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_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2022-11-18 20:01:04,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:01:04,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:01:04,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:01:04,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:01:04,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:01:04,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread/lazy01.i [2022-11-18 20:01:04,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/data/6307d14c8/6058ac473ab543d496cff03733ecd5ae/FLAG34e8935cd [2022-11-18 20:01:04,796 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:01:04,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/sv-benchmarks/c/pthread/lazy01.i [2022-11-18 20:01:04,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/data/6307d14c8/6058ac473ab543d496cff03733ecd5ae/FLAG34e8935cd [2022-11-18 20:01:05,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/data/6307d14c8/6058ac473ab543d496cff03733ecd5ae [2022-11-18 20:01:05,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:01:05,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:01:05,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:01:05,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:01:05,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:01:05,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc3c8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05, skipping insertion in model container [2022-11-18 20:01:05,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:01:05,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:01:05,723 WARN L234 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_22b333c1-4cc4-4874-af1d-e9eb154034fa/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-18 20:01:05,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:01:05,749 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:01:05,789 WARN L234 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_22b333c1-4cc4-4874-af1d-e9eb154034fa/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-18 20:01:05,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:01:05,833 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:01:05,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05 WrapperNode [2022-11-18 20:01:05,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:01:05,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:01:05,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:01:05,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:01:05,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,875 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-11-18 20:01:05,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:01:05,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:01:05,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:01:05,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:01:05,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:01:05,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:01:05,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:01:05,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:01:05,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (1/1) ... [2022-11-18 20:01:05,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:01:05,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:01:05,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:01:05,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:01:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:01:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:01:05,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:01:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:01:05,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:01:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:01:05,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:01:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:01:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:01:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:01:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:01:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:01:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:01:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:01:05,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:01:05,986 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:01:06,140 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:01:06,142 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:01:06,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:01:06,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:01:06,366 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:01:06,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:01:06 BoogieIcfgContainer [2022-11-18 20:01:06,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:01:06,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:01:06,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:01:06,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:01:06,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:01:05" (1/3) ... [2022-11-18 20:01:06,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8238ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:01:06, skipping insertion in model container [2022-11-18 20:01:06,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:05" (2/3) ... [2022-11-18 20:01:06,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8238ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:01:06, skipping insertion in model container [2022-11-18 20:01:06,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:01:06" (3/3) ... [2022-11-18 20:01:06,383 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-11-18 20:01:06,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:01:06,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:01:06,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:01:06,409 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:01:06,498 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:01:06,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 91 transitions, 206 flow [2022-11-18 20:01:06,584 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-11-18 20:01:06,585 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:01:06,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 88 events. 1/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-11-18 20:01:06,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 91 transitions, 206 flow [2022-11-18 20:01:06,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 70 transitions, 155 flow [2022-11-18 20:01:06,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:01:06,612 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;@6112b36b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:01:06,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 20:01:06,654 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2022-11-18 20:01:06,654 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:01:06,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:06,657 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] [2022-11-18 20:01:06,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 20:01:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -942189289, now seen corresponding path program 1 times [2022-11-18 20:01:06,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:06,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657879854] [2022-11-18 20:01:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:01:07,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:07,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657879854] [2022-11-18 20:01:07,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657879854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:07,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:07,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:01:07,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650750346] [2022-11-18 20:01:07,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:07,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:01:07,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:07,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:01:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:01:07,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2022-11-18 20:01:07,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2022-11-18 20:01:07,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:07,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2022-11-18 20:01:07,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:01:07,356 INFO L130 PetriNetUnfolder]: 19/154 cut-off events. [2022-11-18 20:01:07,356 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-18 20:01:07,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 154 events. 19/154 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 431 event pairs, 9 based on Foata normal form. 2/153 useless extension candidates. Maximal degree in co-relation 152. Up to 37 conditions per place. [2022-11-18 20:01:07,361 INFO L137 encePairwiseOnDemand]: 87/91 looper letters, 12 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2022-11-18 20:01:07,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 201 flow [2022-11-18 20:01:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:01:07,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:01:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2022-11-18 20:01:07,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2022-11-18 20:01:07,376 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2022-11-18 20:01:07,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2022-11-18 20:01:07,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:01:07,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2022-11-18 20:01:07,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2022-11-18 20:01:07,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2022-11-18 20:01:07,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2022-11-18 20:01:07,391 INFO L175 Difference]: Start difference. First operand has 80 places, 70 transitions, 155 flow. Second operand 3 states and 247 transitions. [2022-11-18 20:01:07,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 201 flow [2022-11-18 20:01:07,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 189 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:01:07,399 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 165 flow [2022-11-18 20:01:07,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2022-11-18 20:01:07,405 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -2 predicate places. [2022-11-18 20:01:07,405 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 165 flow [2022-11-18 20:01:07,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2022-11-18 20:01:07,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:07,406 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] [2022-11-18 20:01:07,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:01:07,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 20:01:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:07,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1778880871, now seen corresponding path program 1 times [2022-11-18 20:01:07,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:07,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466169966] [2022-11-18 20:01:07,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:07,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:01:07,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:07,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466169966] [2022-11-18 20:01:07,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466169966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:07,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:07,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:01:07,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943929907] [2022-11-18 20:01:07,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:07,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:01:07,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:01:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:01:07,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-11-18 20:01:07,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-11-18 20:01:07,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:07,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-11-18 20:01:07,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:01:07,714 INFO L130 PetriNetUnfolder]: 16/160 cut-off events. [2022-11-18 20:01:07,714 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:01:07,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 160 events. 16/160 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 495 event pairs, 3 based on Foata normal form. 14/174 useless extension candidates. Maximal degree in co-relation 120. Up to 28 conditions per place. [2022-11-18 20:01:07,719 INFO L137 encePairwiseOnDemand]: 86/91 looper letters, 16 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2022-11-18 20:01:07,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 220 flow [2022-11-18 20:01:07,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:01:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:01:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2022-11-18 20:01:07,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-11-18 20:01:07,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2022-11-18 20:01:07,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2022-11-18 20:01:07,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:01:07,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2022-11-18 20:01:07,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-11-18 20:01:07,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2022-11-18 20:01:07,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2022-11-18 20:01:07,735 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 165 flow. Second operand 3 states and 234 transitions. [2022-11-18 20:01:07,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 220 flow [2022-11-18 20:01:07,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:01:07,741 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 172 flow [2022-11-18 20:01:07,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2022-11-18 20:01:07,742 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -1 predicate places. [2022-11-18 20:01:07,743 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 172 flow [2022-11-18 20:01:07,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-11-18 20:01:07,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:07,744 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] [2022-11-18 20:01:07,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:01:07,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 20:01:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash 104289371, now seen corresponding path program 1 times [2022-11-18 20:01:07,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:07,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837765353] [2022-11-18 20:01:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:01:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:07,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837765353] [2022-11-18 20:01:07,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837765353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:07,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:07,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:01:07,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214764484] [2022-11-18 20:01:07,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:07,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:01:07,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:07,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:01:07,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:01:07,957 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2022-11-18 20:01:07,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2022-11-18 20:01:07,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:07,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2022-11-18 20:01:07,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:01:08,015 INFO L130 PetriNetUnfolder]: 14/146 cut-off events. [2022-11-18 20:01:08,015 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:01:08,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 146 events. 14/146 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 400 event pairs, 8 based on Foata normal form. 1/145 useless extension candidates. Maximal degree in co-relation 73. Up to 24 conditions per place. [2022-11-18 20:01:08,017 INFO L137 encePairwiseOnDemand]: 87/91 looper letters, 12 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2022-11-18 20:01:08,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 76 transitions, 217 flow [2022-11-18 20:01:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:01:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:01:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2022-11-18 20:01:08,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2022-11-18 20:01:08,020 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 325 transitions. [2022-11-18 20:01:08,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 325 transitions. [2022-11-18 20:01:08,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:01:08,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 325 transitions. [2022-11-18 20:01:08,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-11-18 20:01:08,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2022-11-18 20:01:08,023 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2022-11-18 20:01:08,024 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 172 flow. Second operand 4 states and 325 transitions. [2022-11-18 20:01:08,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 76 transitions, 217 flow [2022-11-18 20:01:08,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 76 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:01:08,027 INFO L231 Difference]: Finished difference. Result has 82 places, 72 transitions, 179 flow [2022-11-18 20:01:08,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=82, PETRI_TRANSITIONS=72} [2022-11-18 20:01:08,028 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 2 predicate places. [2022-11-18 20:01:08,028 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 72 transitions, 179 flow [2022-11-18 20:01:08,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2022-11-18 20:01:08,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:08,029 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] [2022-11-18 20:01:08,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:01:08,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 20:01:08,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash -716327703, now seen corresponding path program 1 times [2022-11-18 20:01:08,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:08,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972060704] [2022-11-18 20:01:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:01:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972060704] [2022-11-18 20:01:08,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972060704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:08,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:08,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:01:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290387746] [2022-11-18 20:01:08,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:08,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:01:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:01:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:01:08,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 91 [2022-11-18 20:01:08,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 179 flow. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-11-18 20:01:08,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:08,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 91 [2022-11-18 20:01:08,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:01:08,256 INFO L130 PetriNetUnfolder]: 16/141 cut-off events. [2022-11-18 20:01:08,256 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-11-18 20:01:08,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 141 events. 16/141 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 403 event pairs, 1 based on Foata normal form. 2/143 useless extension candidates. Maximal degree in co-relation 164. Up to 24 conditions per place. [2022-11-18 20:01:08,261 INFO L137 encePairwiseOnDemand]: 85/91 looper letters, 17 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2022-11-18 20:01:08,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 82 transitions, 257 flow [2022-11-18 20:01:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:01:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:01:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2022-11-18 20:01:08,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791208791208791 [2022-11-18 20:01:08,263 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2022-11-18 20:01:08,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2022-11-18 20:01:08,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:01:08,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2022-11-18 20:01:08,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2022-11-18 20:01:08,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 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) [2022-11-18 20:01:08,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 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) [2022-11-18 20:01:08,272 INFO L175 Difference]: Start difference. First operand has 82 places, 72 transitions, 179 flow. Second operand 6 states and 480 transitions. [2022-11-18 20:01:08,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 82 transitions, 257 flow [2022-11-18 20:01:08,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 82 transitions, 249 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-18 20:01:08,279 INFO L231 Difference]: Finished difference. Result has 88 places, 74 transitions, 200 flow [2022-11-18 20:01:08,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=88, PETRI_TRANSITIONS=74} [2022-11-18 20:01:08,282 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 8 predicate places. [2022-11-18 20:01:08,290 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 74 transitions, 200 flow [2022-11-18 20:01:08,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-11-18 20:01:08,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:08,291 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] [2022-11-18 20:01:08,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:01:08,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 20:01:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:08,292 INFO L85 PathProgramCache]: Analyzing trace with hash -435672625, now seen corresponding path program 1 times [2022-11-18 20:01:08,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:08,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967039588] [2022-11-18 20:01:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:01:08,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:01:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:01:08,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:01:08,431 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:01:08,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-18 20:01:08,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-18 20:01:08,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-18 20:01:08,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-18 20:01:08,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-18 20:01:08,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:01:08,436 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:01:08,443 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:01:08,443 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:01:08,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:01:08 BasicIcfg [2022-11-18 20:01:08,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:01:08,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:01:08,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:01:08,522 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:01:08,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:01:06" (3/4) ... [2022-11-18 20:01:08,525 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:01:08,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:01:08,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:01:08,607 INFO L158 Benchmark]: Toolchain (without parser) took 3454.91ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 70.5MB in the beginning and 95.7MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:01:08,607 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:01:08,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.69ms. Allocated memory is still 115.3MB. Free memory was 70.3MB in the beginning and 79.3MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:01:08,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.47ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:01:08,608 INFO L158 Benchmark]: Boogie Preprocessor took 24.30ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:01:08,609 INFO L158 Benchmark]: RCFGBuilder took 467.50ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 62.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:01:08,609 INFO L158 Benchmark]: TraceAbstraction took 2142.56ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.2MB in the beginning and 102.0MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:01:08,610 INFO L158 Benchmark]: Witness Printer took 91.67ms. Allocated memory is still 138.4MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:01:08,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.69ms. Allocated memory is still 115.3MB. Free memory was 70.3MB in the beginning and 79.3MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.47ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.30ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.50ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 62.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2142.56ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.2MB in the beginning and 102.0MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.67ms. Allocated memory is still 138.4MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L703] 0 int data = 0; VAL [data=0] [L702] 0 pthread_mutex_t mutex; VAL [data=0, mutex={3:0}] [L731] 0 pthread_t t1, t2, t3; VAL [data=0, mutex={3:0}, t1={6:0}, t2={7:0}, t3={5:0}] [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={7:0}, t3={5:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={7:0}, t3={5:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t3, 0, thread3, 0)=0, t1={6:0}, t2={7:0}, t3={5:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 reach_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 734]: 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. - UnprovableResult [Line: 733]: 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. - UnprovableResult [Line: 732]: 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 7 procedures, 123 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 19 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.7s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-11-18 20:01:08,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b333c1-4cc4-4874-af1d-e9eb154034fa/bin/uautomizer-TMbwUNV5ro/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