./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8 --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-e04fb08 [2022-11-16 12:14:15,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:14:15,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:14:15,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:14:15,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:14:15,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:14:15,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:14:15,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:14:15,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:14:15,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:14:15,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:14:15,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:14:15,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:14:15,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:14:15,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:14:15,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:14:15,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:14:15,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:14:15,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:14:15,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:14:15,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:14:15,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:14:15,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:14:15,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:14:15,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:14:15,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:14:15,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:14:15,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:14:15,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:14:15,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:14:15,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:14:15,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:14:15,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:14:15,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:14:15,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:14:15,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:14:15,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:14:15,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:14:15,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:14:15,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:14:15,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:14:15,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:14:15,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:14:15,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:14:15,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:14:15,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:14:15,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:14:15,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:14:15,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:14:15,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:14:15,644 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:14:15,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:14:15,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:14:15,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:14:15,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:14:15,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:14:15,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:14:15,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:14:15,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:14:15,647 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:14:15,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:14:15,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:14:15,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:14:15,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:14:15,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:14:15,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:14:15,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:14:15,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:14:15,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:14:15,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:14:15,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:14:15,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:14:15,651 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:14:15,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:14:15,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:14:15,652 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_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-16 12:14:15,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:14:15,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:14:15,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:14:15,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:14:15,997 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:14:15,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 12:14:16,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/data/5b1ecf87a/1fb7463c44934749b00737718ea4f0db/FLAG5d10a4f81 [2022-11-16 12:14:16,773 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:14:16,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 12:14:16,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/data/5b1ecf87a/1fb7463c44934749b00737718ea4f0db/FLAG5d10a4f81 [2022-11-16 12:14:16,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/data/5b1ecf87a/1fb7463c44934749b00737718ea4f0db [2022-11-16 12:14:16,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:14:16,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:14:16,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:14:16,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:14:16,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:14:16,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:14:16" (1/1) ... [2022-11-16 12:14:16,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3cfa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:16, skipping insertion in model container [2022-11-16 12:14:16,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:14:16" (1/1) ... [2022-11-16 12:14:16,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:14:17,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:14:17,285 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:14:17,812 WARN L229 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_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 12:14:17,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:14:17,860 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:14:17,872 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:14:17,912 WARN L229 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_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 12:14:17,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:14:18,086 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:14:18,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18 WrapperNode [2022-11-16 12:14:18,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:14:18,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:14:18,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:14:18,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:14:18,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,174 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-16 12:14:18,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:14:18,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:14:18,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:14:18,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:14:18,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,212 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:14:18,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:14:18,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:14:18,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:14:18,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (1/1) ... [2022-11-16 12:14:18,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:14:18,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:18,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:14:18,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:14:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:14:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:14:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:14:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:14:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:14:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:14:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:14:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:14:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:14:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:14:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:14:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:14:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:14:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:14:18,331 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:14:18,768 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:14:18,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:14:19,139 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:14:19,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:14:19,187 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:14:19,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:14:19 BoogieIcfgContainer [2022-11-16 12:14:19,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:14:19,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:14:19,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:14:19,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:14:19,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:14:16" (1/3) ... [2022-11-16 12:14:19,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ac70db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:14:19, skipping insertion in model container [2022-11-16 12:14:19,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:14:18" (2/3) ... [2022-11-16 12:14:19,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ac70db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:14:19, skipping insertion in model container [2022-11-16 12:14:19,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:14:19" (3/3) ... [2022-11-16 12:14:19,207 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-16 12:14:19,219 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:14:19,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:14:19,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:14:19,232 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:14:19,308 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:14:19,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-16 12:14:19,449 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-16 12:14:19,450 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:14:19,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 374 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-16 12:14:19,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-11-16 12:14:19,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-11-16 12:14:19,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:14:19,477 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;@a41f01b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:14:19,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 12:14:19,501 INFO L130 PetriNetUnfolder]: 0/107 cut-off events. [2022-11-16 12:14:19,508 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:14:19,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:19,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:19,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:19,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1773378929, now seen corresponding path program 1 times [2022-11-16 12:14:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:19,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958696833] [2022-11-16 12:14:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:20,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:20,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958696833] [2022-11-16 12:14:20,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958696833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:20,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:20,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:14:20,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368106274] [2022-11-16 12:14:20,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:20,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:14:20,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:14:20,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:14:20,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-11-16 12:14:20,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 161 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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) [2022-11-16 12:14:20,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:14:20,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-11-16 12:14:20,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:14:21,608 INFO L130 PetriNetUnfolder]: 850/2034 cut-off events. [2022-11-16 12:14:21,609 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 12:14:21,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3561 conditions, 2034 events. 850/2034 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13397 event pairs, 196 based on Foata normal form. 17/1998 useless extension candidates. Maximal degree in co-relation 3253. Up to 615 conditions per place. [2022-11-16 12:14:21,636 INFO L137 encePairwiseOnDemand]: 151/175 looper letters, 100 selfloop transitions, 48 changer transitions 0/245 dead transitions. [2022-11-16 12:14:21,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 245 transitions, 798 flow [2022-11-16 12:14:21,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:14:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:14:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1637 transitions. [2022-11-16 12:14:21,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6681632653061225 [2022-11-16 12:14:21,665 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1637 transitions. [2022-11-16 12:14:21,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1637 transitions. [2022-11-16 12:14:21,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:14:21,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1637 transitions. [2022-11-16 12:14:21,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 116.92857142857143) internal successors, (1637), 14 states have internal predecessors, (1637), 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) [2022-11-16 12:14:21,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2022-11-16 12:14:21,700 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2022-11-16 12:14:21,702 INFO L175 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 14 states and 1637 transitions. [2022-11-16 12:14:21,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 245 transitions, 798 flow [2022-11-16 12:14:21,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 245 transitions, 790 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:14:21,722 INFO L231 Difference]: Finished difference. Result has 177 places, 194 transitions, 615 flow [2022-11-16 12:14:21,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=615, PETRI_PLACES=177, PETRI_TRANSITIONS=194} [2022-11-16 12:14:21,731 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2022-11-16 12:14:21,732 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 194 transitions, 615 flow [2022-11-16 12:14:21,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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) [2022-11-16 12:14:21,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:21,734 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:21,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:14:21,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:21,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:21,736 INFO L85 PathProgramCache]: Analyzing trace with hash -238227831, now seen corresponding path program 1 times [2022-11-16 12:14:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:21,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053268215] [2022-11-16 12:14:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:22,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:22,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053268215] [2022-11-16 12:14:22,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053268215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:22,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:22,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:14:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487937043] [2022-11-16 12:14:22,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:22,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:14:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:14:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:14:22,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-11-16 12:14:22,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 194 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2022-11-16 12:14:22,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:14:22,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-11-16 12:14:22,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:14:23,420 INFO L130 PetriNetUnfolder]: 1104/2643 cut-off events. [2022-11-16 12:14:23,421 INFO L131 PetriNetUnfolder]: For 10776/10838 co-relation queries the response was YES. [2022-11-16 12:14:23,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9141 conditions, 2643 events. 1104/2643 cut-off events. For 10776/10838 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 19098 event pairs, 258 based on Foata normal form. 47/2662 useless extension candidates. Maximal degree in co-relation 8135. Up to 858 conditions per place. [2022-11-16 12:14:23,452 INFO L137 encePairwiseOnDemand]: 156/175 looper letters, 75 selfloop transitions, 44 changer transitions 72/287 dead transitions. [2022-11-16 12:14:23,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 287 transitions, 1736 flow [2022-11-16 12:14:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:14:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:14:23,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1406 transitions. [2022-11-16 12:14:23,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695238095238095 [2022-11-16 12:14:23,459 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1406 transitions. [2022-11-16 12:14:23,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1406 transitions. [2022-11-16 12:14:23,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:14:23,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1406 transitions. [2022-11-16 12:14:23,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 117.16666666666667) internal successors, (1406), 12 states have internal predecessors, (1406), 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) [2022-11-16 12:14:23,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 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) [2022-11-16 12:14:23,473 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 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) [2022-11-16 12:14:23,473 INFO L175 Difference]: Start difference. First operand has 177 places, 194 transitions, 615 flow. Second operand 12 states and 1406 transitions. [2022-11-16 12:14:23,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 287 transitions, 1736 flow [2022-11-16 12:14:23,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 287 transitions, 1736 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:14:23,504 INFO L231 Difference]: Finished difference. Result has 196 places, 197 transitions, 923 flow [2022-11-16 12:14:23,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=923, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2022-11-16 12:14:23,505 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2022-11-16 12:14:23,506 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 923 flow [2022-11-16 12:14:23,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2022-11-16 12:14:23,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:23,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:23,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:14:23,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:23,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1226447519, now seen corresponding path program 1 times [2022-11-16 12:14:23,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:23,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913233694] [2022-11-16 12:14:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:23,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:23,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:23,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913233694] [2022-11-16 12:14:23,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913233694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:23,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:23,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:14:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363700270] [2022-11-16 12:14:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:23,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:14:23,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:23,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:14:23,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:14:23,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 175 [2022-11-16 12:14:23,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 923 flow. Second operand has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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) [2022-11-16 12:14:23,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:14:23,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 175 [2022-11-16 12:14:23,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:14:23,890 INFO L130 PetriNetUnfolder]: 57/330 cut-off events. [2022-11-16 12:14:23,891 INFO L131 PetriNetUnfolder]: For 849/929 co-relation queries the response was YES. [2022-11-16 12:14:23,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 330 events. 57/330 cut-off events. For 849/929 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1241 event pairs, 12 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 731. Up to 54 conditions per place. [2022-11-16 12:14:23,895 INFO L137 encePairwiseOnDemand]: 170/175 looper letters, 23 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2022-11-16 12:14:23,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 136 transitions, 447 flow [2022-11-16 12:14:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:14:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:14:23,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 904 transitions. [2022-11-16 12:14:23,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8609523809523809 [2022-11-16 12:14:23,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 904 transitions. [2022-11-16 12:14:23,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 904 transitions. [2022-11-16 12:14:23,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:14:23,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 904 transitions. [2022-11-16 12:14:23,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 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) [2022-11-16 12:14:23,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2022-11-16 12:14:23,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2022-11-16 12:14:23,917 INFO L175 Difference]: Start difference. First operand has 196 places, 197 transitions, 923 flow. Second operand 6 states and 904 transitions. [2022-11-16 12:14:23,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 136 transitions, 447 flow [2022-11-16 12:14:23,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 136 transitions, 338 flow, removed 40 selfloop flow, removed 17 redundant places. [2022-11-16 12:14:23,927 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 276 flow [2022-11-16 12:14:23,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2022-11-16 12:14:23,931 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-11-16 12:14:23,931 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 276 flow [2022-11-16 12:14:23,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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) [2022-11-16 12:14:23,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:23,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:23,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:14:23,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1976380995, now seen corresponding path program 1 times [2022-11-16 12:14:23,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:23,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338257659] [2022-11-16 12:14:23,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:23,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:24,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:24,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338257659] [2022-11-16 12:14:24,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338257659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:24,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:24,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:14:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017902471] [2022-11-16 12:14:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:24,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:14:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:14:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:14:24,463 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-11-16 12:14:24,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-11-16 12:14:24,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:14:24,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-11-16 12:14:24,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:14:24,674 INFO L130 PetriNetUnfolder]: 123/446 cut-off events. [2022-11-16 12:14:24,674 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2022-11-16 12:14:24,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 446 events. 123/446 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1769 event pairs, 94 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 810. Up to 227 conditions per place. [2022-11-16 12:14:24,678 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 37 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2022-11-16 12:14:24,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 385 flow [2022-11-16 12:14:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:14:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:14:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-11-16 12:14:24,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8304761904761905 [2022-11-16 12:14:24,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-11-16 12:14:24,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-11-16 12:14:24,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:14:24,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-11-16 12:14:24,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2022-11-16 12:14:24,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2022-11-16 12:14:24,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2022-11-16 12:14:24,692 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 276 flow. Second operand 3 states and 436 transitions. [2022-11-16 12:14:24,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 385 flow [2022-11-16 12:14:24,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 378 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:14:24,698 INFO L231 Difference]: Finished difference. Result has 141 places, 132 transitions, 311 flow [2022-11-16 12:14:24,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=141, PETRI_TRANSITIONS=132} [2022-11-16 12:14:24,706 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-11-16 12:14:24,707 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 132 transitions, 311 flow [2022-11-16 12:14:24,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-11-16 12:14:24,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:24,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:24,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:14:24,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash 219140614, now seen corresponding path program 1 times [2022-11-16 12:14:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:24,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642512564] [2022-11-16 12:14:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:25,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:25,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642512564] [2022-11-16 12:14:25,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642512564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:25,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:25,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:14:25,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142780561] [2022-11-16 12:14:25,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:25,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:14:25,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:25,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:14:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:14:25,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-11-16 12:14:25,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 132 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2022-11-16 12:14:25,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:14:25,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-11-16 12:14:25,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:14:25,214 INFO L130 PetriNetUnfolder]: 130/465 cut-off events. [2022-11-16 12:14:25,214 INFO L131 PetriNetUnfolder]: For 206/212 co-relation queries the response was YES. [2022-11-16 12:14:25,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 465 events. 130/465 cut-off events. For 206/212 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1883 event pairs, 98 based on Foata normal form. 1/444 useless extension candidates. Maximal degree in co-relation 954. Up to 239 conditions per place. [2022-11-16 12:14:25,218 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 39 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2022-11-16 12:14:25,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 448 flow [2022-11-16 12:14:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:14:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:14:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-11-16 12:14:25,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2022-11-16 12:14:25,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-11-16 12:14:25,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-11-16 12:14:25,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:14:25,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-11-16 12:14:25,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2022-11-16 12:14:25,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2022-11-16 12:14:25,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2022-11-16 12:14:25,225 INFO L175 Difference]: Start difference. First operand has 141 places, 132 transitions, 311 flow. Second operand 3 states and 435 transitions. [2022-11-16 12:14:25,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 448 flow [2022-11-16 12:14:25,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 142 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-16 12:14:25,231 INFO L231 Difference]: Finished difference. Result has 143 places, 137 transitions, 357 flow [2022-11-16 12:14:25,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=143, PETRI_TRANSITIONS=137} [2022-11-16 12:14:25,235 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -20 predicate places. [2022-11-16 12:14:25,235 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 357 flow [2022-11-16 12:14:25,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2022-11-16 12:14:25,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:14:25,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:25,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:14:25,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 12:14:25,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1168566715, now seen corresponding path program 1 times [2022-11-16 12:14:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:25,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219255526] [2022-11-16 12:14:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:25,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:14:25,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:14:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:14:25,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:14:25,531 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:14:25,533 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-16 12:14:25,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-16 12:14:25,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-16 12:14:25,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-16 12:14:25,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-16 12:14:25,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-16 12:14:25,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-16 12:14:25,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-16 12:14:25,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:14:25,538 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:14:25,545 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:14:25,545 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:14:25,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:14:25 BasicIcfg [2022-11-16 12:14:25,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:14:25,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:14:25,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:14:25,682 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:14:25,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:14:19" (3/4) ... [2022-11-16 12:14:25,685 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 12:14:25,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:14:25,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:14:25,781 INFO L158 Benchmark]: Toolchain (without parser) took 8842.16ms. Allocated memory was 117.4MB in the beginning and 289.4MB in the end (delta: 172.0MB). Free memory was 73.2MB in the beginning and 174.9MB in the end (delta: -101.7MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,782 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:14:25,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1142.52ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 134.1MB in the end (delta: -61.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.06ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 130.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,783 INFO L158 Benchmark]: Boogie Preprocessor took 44.96ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 127.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,784 INFO L158 Benchmark]: RCFGBuilder took 961.11ms. Allocated memory is still 167.8MB. Free memory was 127.8MB in the beginning and 100.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,784 INFO L158 Benchmark]: TraceAbstraction took 6488.31ms. Allocated memory was 167.8MB in the beginning and 289.4MB in the end (delta: 121.6MB). Free memory was 99.8MB in the beginning and 193.8MB in the end (delta: -94.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,785 INFO L158 Benchmark]: Witness Printer took 98.70ms. Allocated memory is still 289.4MB. Free memory was 193.8MB in the beginning and 174.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:14:25,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1142.52ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 134.1MB in the end (delta: -61.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.06ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 130.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.96ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 127.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 961.11ms. Allocated memory is still 167.8MB. Free memory was 127.8MB in the beginning and 100.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6488.31ms. Allocated memory was 167.8MB in the beginning and 289.4MB in the end (delta: 121.6MB). Free memory was 99.8MB in the beginning and 193.8MB in the end (delta: -94.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 98.70ms. Allocated memory is still 289.4MB. Free memory was 193.8MB in the beginning and 174.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={6:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=7, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={6:24}, arg={6:24}, dev={6:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={6:24}, arg={6:24}, dev={6:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, dev={6:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=8, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, __mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, dev={6:24}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, dev={6:24}, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1751] CALL 0 my_drv_disconnect(&data) [L1697] EXPR 1 data->shared.b [L1697] 1 int lb = data->shared.b; [L1700] 1 data->shared.b = lb + 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1703] 1 return 0; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1722] 0 \read(t1) VAL [\read(t1)=7, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\read(t1)=7, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_join(t1, &status)={0:0}, status={5:0}, t1={3:0}, t2={4:0}] [L1724] 0 data->shared.a = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1689] 2 struct device *dev = (struct device*)arg; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1690] 2 struct my_data *data; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1694] 2 data->shared.a = 1 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1727] 0 data->shared.b = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1730] EXPR 0 data->shared.a [L1730] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, lb=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1714]: 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: 1713]: 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 4 procedures, 185 locations, 8 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: 6.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 389 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 560 IncrementalHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 135 mSDtfsCounter, 560 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=923occurred in iteration=2, InterpolantAutomatonStates: 38, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-11-16 12:14:25,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8af6bb-b903-42d9-9c02-80e8c1c4781f/bin/uautomizer-tPACEb0tL8/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