./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ --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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- 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-dbf71c6-m [2022-10-17 10:25:13,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:25:13,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:25:13,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:25:13,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:25:13,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:25:13,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:25:13,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:25:13,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:25:13,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:25:13,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:25:13,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:25:13,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:25:13,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:25:13,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:25:13,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:25:13,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:25:13,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:25:13,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:25:13,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:25:13,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:25:13,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:25:13,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:25:13,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:25:13,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:25:13,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:25:13,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:25:13,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:25:13,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:25:13,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:25:13,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:25:13,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:25:13,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:25:13,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:25:13,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:25:13,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:25:13,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:25:13,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:25:13,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:25:13,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:25:13,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:25:13,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:25:13,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:25:13,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:25:13,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:25:13,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:25:13,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:25:13,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:25:13,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:25:13,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:25:13,935 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:25:13,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:25:13,936 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:25:13,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:25:13,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:25:13,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:25:13,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:25:13,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:25:13,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:25:13,937 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:25:13,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:25:13,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:25:13,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:25:13,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:25:13,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:25:13,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:25:13,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:25:13,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:25:13,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:25:13,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:25:13,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:25:13,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:25:13,940 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:25:13,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:25:13,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:25:13,941 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_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-10-17 10:25:14,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:25:14,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:25:14,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:25:14,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:25:14,217 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:25:14,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-10-17 10:25:14,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/data/76bb61c8a/9e264b4557d34628b4dea4500968a9bc/FLAG323d08955 [2022-10-17 10:25:14,988 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:25:14,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-10-17 10:25:15,015 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/data/76bb61c8a/9e264b4557d34628b4dea4500968a9bc/FLAG323d08955 [2022-10-17 10:25:15,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/data/76bb61c8a/9e264b4557d34628b4dea4500968a9bc [2022-10-17 10:25:15,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:25:15,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:25:15,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:25:15,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:25:15,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:25:15,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:25:15" (1/1) ... [2022-10-17 10:25:15,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abf6b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:15, skipping insertion in model container [2022-10-17 10:25:15,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:25:15" (1/1) ... [2022-10-17 10:25:15,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:25:15,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:25:15,943 WARN L230 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_9833f550-0bd1-445d-a8bc-5bc9d760a592/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-10-17 10:25:15,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:25:15,992 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:25:16,031 WARN L230 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_9833f550-0bd1-445d-a8bc-5bc9d760a592/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-10-17 10:25:16,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:25:16,133 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:25:16,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16 WrapperNode [2022-10-17 10:25:16,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:25:16,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:25:16,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:25:16,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:25:16,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,199 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-10-17 10:25:16,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:25:16,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:25:16,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:25:16,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:25:16,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,237 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:25:16,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:25:16,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:25:16,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:25:16,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (1/1) ... [2022-10-17 10:25:16,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:25:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:16,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:16,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:25:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:25:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:25:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:25:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:25:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:25:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:25:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:25:16,325 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:25:16,545 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:25:16,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:25:17,027 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:25:17,038 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:25:17,038 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-10-17 10:25:17,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:17 BoogieIcfgContainer [2022-10-17 10:25:17,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:25:17,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:25:17,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:25:17,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:25:17,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:25:15" (1/3) ... [2022-10-17 10:25:17,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9a6724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:25:17, skipping insertion in model container [2022-10-17 10:25:17,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:16" (2/3) ... [2022-10-17 10:25:17,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9a6724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:25:17, skipping insertion in model container [2022-10-17 10:25:17,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:17" (3/3) ... [2022-10-17 10:25:17,054 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-10-17 10:25:17,063 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:25:17,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:25:17,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:25:17,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:25:17,180 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-17 10:25:17,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 254 transitions, 516 flow [2022-10-17 10:25:17,403 INFO L130 PetriNetUnfolder]: 45/362 cut-off events. [2022-10-17 10:25:17,404 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:25:17,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 362 events. 45/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1082 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2022-10-17 10:25:17,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 254 transitions, 516 flow [2022-10-17 10:25:17,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 249 transitions, 503 flow [2022-10-17 10:25:17,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:25:17,437 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;@4c933862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:25:17,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-17 10:25:17,458 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-10-17 10:25:17,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:25:17,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:25:17,460 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:25:17,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:25:17,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:17,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2053050589, now seen corresponding path program 1 times [2022-10-17 10:25:17,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:17,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181801959] [2022-10-17 10:25:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:17,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:17,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:17,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:17,757 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:25:17,758 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-10-17 10:25:17,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-10-17 10:25:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-10-17 10:25:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-10-17 10:25:17,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:25:17,762 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 10:25:17,766 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-10-17 10:25:17,766 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-10-17 10:25:17,825 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-17 10:25:17,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 338 transitions, 694 flow [2022-10-17 10:25:18,019 INFO L130 PetriNetUnfolder]: 76/579 cut-off events. [2022-10-17 10:25:18,020 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-10-17 10:25:18,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 579 events. 76/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2307 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 364. Up to 12 conditions per place. [2022-10-17 10:25:18,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 338 transitions, 694 flow [2022-10-17 10:25:18,041 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 338 transitions, 694 flow [2022-10-17 10:25:18,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:25:18,044 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;@4c933862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:25:18,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-10-17 10:25:18,077 INFO L130 PetriNetUnfolder]: 3/154 cut-off events. [2022-10-17 10:25:18,077 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 10:25:18,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:25:18,078 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-10-17 10:25:18,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 10:25:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1836237953, now seen corresponding path program 1 times [2022-10-17 10:25:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:18,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627684178] [2022-10-17 10:25:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:18,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:18,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:18,214 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:25:18,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-10-17 10:25:18,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-10-17 10:25:18,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-10-17 10:25:18,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-10-17 10:25:18,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-10-17 10:25:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:25:18,216 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 10:25:18,217 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-10-17 10:25:18,217 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-10-17 10:25:18,321 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-17 10:25:18,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 422 transitions, 874 flow [2022-10-17 10:25:18,602 INFO L130 PetriNetUnfolder]: 112/829 cut-off events. [2022-10-17 10:25:18,602 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-10-17 10:25:18,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 829 events. 112/829 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3832 event pairs, 1 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 587. Up to 16 conditions per place. [2022-10-17 10:25:18,652 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 422 transitions, 874 flow [2022-10-17 10:25:18,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 422 transitions, 874 flow [2022-10-17 10:25:18,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:25:18,680 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;@4c933862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:25:18,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-17 10:25:18,720 INFO L130 PetriNetUnfolder]: 7/247 cut-off events. [2022-10-17 10:25:18,723 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-10-17 10:25:18,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:25:18,723 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-10-17 10:25:18,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-10-17 10:25:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:18,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2036541720, now seen corresponding path program 1 times [2022-10-17 10:25:18,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:18,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458480083] [2022-10-17 10:25:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:18,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:18,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:18,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:18,960 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:25:18,960 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-10-17 10:25:18,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-10-17 10:25:18,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-10-17 10:25:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-10-17 10:25:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-10-17 10:25:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-10-17 10:25:18,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:25:18,962 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 10:25:18,964 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-10-17 10:25:18,965 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-10-17 10:25:19,048 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-17 10:25:19,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 447 places, 506 transitions, 1056 flow [2022-10-17 10:25:19,510 INFO L130 PetriNetUnfolder]: 160/1147 cut-off events. [2022-10-17 10:25:19,510 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-10-17 10:25:19,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1147 events. 160/1147 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5766 event pairs, 6 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 849. Up to 32 conditions per place. [2022-10-17 10:25:19,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 447 places, 506 transitions, 1056 flow [2022-10-17 10:25:19,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 447 places, 506 transitions, 1056 flow [2022-10-17 10:25:19,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:25:19,582 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;@4c933862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:25:19,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:25:19,665 INFO L130 PetriNetUnfolder]: 20/386 cut-off events. [2022-10-17 10:25:19,666 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-10-17 10:25:19,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:25:19,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-10-17 10:25:19,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:25:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1884326887, now seen corresponding path program 1 times [2022-10-17 10:25:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:19,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565861288] [2022-10-17 10:25:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:19,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:19,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:19,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:19,860 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:25:19,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-10-17 10:25:19,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-10-17 10:25:19,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-10-17 10:25:19,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-10-17 10:25:19,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-10-17 10:25:19,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-10-17 10:25:19,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-10-17 10:25:19,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:25:19,863 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 10:25:19,868 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-10-17 10:25:19,869 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:25:20,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:25:20 BasicIcfg [2022-10-17 10:25:20,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:25:20,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:25:20,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:25:20,111 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:25:20,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:17" (3/4) ... [2022-10-17 10:25:20,113 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:25:20,302 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:25:20,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:25:20,304 INFO L158 Benchmark]: Toolchain (without parser) took 5119.75ms. Allocated memory was 117.4MB in the beginning and 224.4MB in the end (delta: 107.0MB). Free memory was 77.4MB in the beginning and 106.2MB in the end (delta: -28.8MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,304 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 96.5MB in the beginning and 96.4MB in the end (delta: 112.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:25:20,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 949.08ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 62.3MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.92ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 59.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,305 INFO L158 Benchmark]: Boogie Preprocessor took 44.92ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 56.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,306 INFO L158 Benchmark]: RCFGBuilder took 794.98ms. Allocated memory is still 117.4MB. Free memory was 56.7MB in the beginning and 77.0MB in the end (delta: -20.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,306 INFO L158 Benchmark]: TraceAbstraction took 3067.71ms. Allocated memory was 117.4MB in the beginning and 224.4MB in the end (delta: 107.0MB). Free memory was 76.1MB in the beginning and 88.4MB in the end (delta: -12.2MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,306 INFO L158 Benchmark]: Witness Printer took 191.65ms. Allocated memory is still 224.4MB. Free memory was 88.4MB in the beginning and 106.2MB in the end (delta: -17.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-10-17 10:25:20,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 96.5MB in the beginning and 96.4MB in the end (delta: 112.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 949.08ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 62.3MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.92ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 59.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.92ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 56.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.98ms. Allocated memory is still 117.4MB. Free memory was 56.7MB in the beginning and 77.0MB in the end (delta: -20.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3067.71ms. Allocated memory was 117.4MB in the beginning and 224.4MB in the end (delta: 107.0MB). Free memory was 76.1MB in the beginning and 88.4MB in the end (delta: -12.2MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. * Witness Printer took 191.65ms. Allocated memory is still 224.4MB. Free memory was 88.4MB in the beginning and 106.2MB in the end (delta: -17.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}] [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [__global_lock={3:0}, A={4:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1267] 0 struct s *p; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, malloc(sizeof(struct s))={9:0}] [L1269] EXPR 0 \read(*A) VAL [\read(*A)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, t_ids={14:0}] [L1270] 0 int i=0; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={14:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [\old(x)=3, \old(x)=7, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={-2:0}, p={-2:0}, p={9:0}, x=7, x=3] [L1247] 1 p -> next = ((void *)0) VAL [\old(x)=3, \old(x)=7, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={-2:0}, p={9:0}, p={-2:0}, x=7, x=3] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [__global_lock={3:0}, __VERIFIER_nondet_int()=0, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}] [L1262] EXPR 1 p->datum VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}, p->datum=7] [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] [L1235] 1 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1270]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 297 locations, 4 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 368 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 439 locations, 6 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=874occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 510 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1056occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-10-17 10:25:20,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9833f550-0bd1-445d-a8bc-5bc9d760a592/bin/uautomizer-J5u9QxTXDZ/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