./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/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_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-18 19:55:42,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:55:42,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:55:42,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:55:42,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:55:42,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:55:42,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:55:42,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:55:42,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:55:42,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:55:42,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:55:42,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:55:42,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:55:42,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:55:42,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:55:42,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:55:42,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:55:42,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:55:42,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:55:42,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:55:42,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:55:42,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:55:42,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:55:42,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:55:42,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:55:42,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:55:42,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:55:42,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:55:42,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:55:43,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:55:43,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:55:43,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:55:43,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:55:43,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:55:43,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:55:43,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:55:43,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:55:43,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:55:43,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:55:43,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:55:43,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:55:43,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:55:43,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:55:43,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:55:43,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:55:43,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:55:43,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:55:43,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:55:43,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:55:43,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:55:43,036 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:55:43,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:55:43,036 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:55:43,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:55:43,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:55:43,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:55:43,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:55:43,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:55:43,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:55:43,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:55:43,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:55:43,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:55:43,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:55:43,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:55:43,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:55:43,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:55:43,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:43,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:55:43,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:55:43,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:55:43,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:55:43,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:55:43,041 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:55:43,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:55:43,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:55:43,042 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_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-18 19:55:43,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:55:43,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:55:43,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:55:43,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:55:43,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:55:43,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 19:55:43,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/data/cdc296cd5/137d1995bf544042b5431962d0dcdc46/FLAG682881836 [2022-11-18 19:55:43,941 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:55:43,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 19:55:43,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/data/cdc296cd5/137d1995bf544042b5431962d0dcdc46/FLAG682881836 [2022-11-18 19:55:44,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/data/cdc296cd5/137d1995bf544042b5431962d0dcdc46 [2022-11-18 19:55:44,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:55:44,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:55:44,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:44,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:55:44,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:55:44,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:44" (1/1) ... [2022-11-18 19:55:44,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2845d0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:44, skipping insertion in model container [2022-11-18 19:55:44,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:44" (1/1) ... [2022-11-18 19:55:44,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:55:44,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:55:44,450 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:55:45,160 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 19:55:45,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:45,221 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:55:45,233 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:55:45,260 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 19:55:45,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:45,383 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:55:45,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45 WrapperNode [2022-11-18 19:55:45,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:45,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:45,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:55:45,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:55:45,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,480 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-18 19:55:45,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:45,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:55:45,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:55:45,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:55:45,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:55:45,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:55:45,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:55:45,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:55:45,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (1/1) ... [2022-11-18 19:55:45,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:45,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:55:45,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:55:45,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:55:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:55:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:55:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:55:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:55:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:55:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:55:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:55:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:55:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:55:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 19:55:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 19:55:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:55:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:55:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:55:45,651 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:55:46,038 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:55:46,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:55:46,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:55:46,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:55:46,397 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:55:46,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:46 BoogieIcfgContainer [2022-11-18 19:55:46,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:55:46,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:55:46,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:55:46,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:55:46,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:55:44" (1/3) ... [2022-11-18 19:55:46,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481069f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:46, skipping insertion in model container [2022-11-18 19:55:46,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:45" (2/3) ... [2022-11-18 19:55:46,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481069f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:46, skipping insertion in model container [2022-11-18 19:55:46,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:46" (3/3) ... [2022-11-18 19:55:46,414 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-18 19:55:46,423 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:55:46,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:55:46,435 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 19:55:46,435 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:55:46,519 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:55:46,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-18 19:55:46,710 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-18 19:55:46,710 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:55:46,719 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. [2022-11-18 19:55:46,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-11-18 19:55:46,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-11-18 19:55:46,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:55:46,764 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;@139f8958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:55:46,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:55:46,801 INFO L130 PetriNetUnfolder]: 0/107 cut-off events. [2022-11-18 19:55:46,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:55:46,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:46,802 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] [2022-11-18 19:55:46,803 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)] === [2022-11-18 19:55:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1773378929, now seen corresponding path program 1 times [2022-11-18 19:55:46,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:46,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124536467] [2022-11-18 19:55:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:46,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:47,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:47,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124536467] [2022-11-18 19:55:47,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124536467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:47,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:47,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:55:47,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080538029] [2022-11-18 19:55:47,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:47,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:47,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:47,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-11-18 19:55:47,967 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) [2022-11-18 19:55:47,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:47,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-11-18 19:55:47,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:48,994 INFO L130 PetriNetUnfolder]: 850/2034 cut-off events. [2022-11-18 19:55:48,994 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 19:55:49,003 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. [2022-11-18 19:55:49,019 INFO L137 encePairwiseOnDemand]: 151/175 looper letters, 100 selfloop transitions, 48 changer transitions 0/245 dead transitions. [2022-11-18 19:55:49,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 245 transitions, 798 flow [2022-11-18 19:55:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:55:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:55:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1637 transitions. [2022-11-18 19:55:49,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6681632653061225 [2022-11-18 19:55:49,043 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1637 transitions. [2022-11-18 19:55:49,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1637 transitions. [2022-11-18 19:55:49,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:49,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1637 transitions. [2022-11-18 19:55:49,061 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) [2022-11-18 19:55:49,071 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) [2022-11-18 19:55:49,073 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) [2022-11-18 19:55:49,075 INFO L175 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 14 states and 1637 transitions. [2022-11-18 19:55:49,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 245 transitions, 798 flow [2022-11-18 19:55:49,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 245 transitions, 790 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:55:49,086 INFO L231 Difference]: Finished difference. Result has 177 places, 194 transitions, 615 flow [2022-11-18 19:55:49,088 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} [2022-11-18 19:55:49,098 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2022-11-18 19:55:49,099 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 194 transitions, 615 flow [2022-11-18 19:55:49,099 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) [2022-11-18 19:55:49,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:49,100 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] [2022-11-18 19:55:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:55:49,101 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)] === [2022-11-18 19:55:49,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -238227831, now seen corresponding path program 1 times [2022-11-18 19:55:49,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:49,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073060118] [2022-11-18 19:55:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:49,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:49,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073060118] [2022-11-18 19:55:49,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073060118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:49,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:49,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:55:49,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635549358] [2022-11-18 19:55:49,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:49,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:49,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:49,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:49,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-11-18 19:55:49,579 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) [2022-11-18 19:55:49,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:49,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-11-18 19:55:49,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:50,548 INFO L130 PetriNetUnfolder]: 1104/2643 cut-off events. [2022-11-18 19:55:50,548 INFO L131 PetriNetUnfolder]: For 10776/10838 co-relation queries the response was YES. [2022-11-18 19:55:50,558 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. [2022-11-18 19:55:50,575 INFO L137 encePairwiseOnDemand]: 156/175 looper letters, 75 selfloop transitions, 44 changer transitions 72/287 dead transitions. [2022-11-18 19:55:50,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 287 transitions, 1736 flow [2022-11-18 19:55:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:55:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 19:55:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1406 transitions. [2022-11-18 19:55:50,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695238095238095 [2022-11-18 19:55:50,581 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1406 transitions. [2022-11-18 19:55:50,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1406 transitions. [2022-11-18 19:55:50,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:50,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1406 transitions. [2022-11-18 19:55:50,586 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) [2022-11-18 19:55:50,591 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) [2022-11-18 19:55:50,593 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) [2022-11-18 19:55:50,593 INFO L175 Difference]: Start difference. First operand has 177 places, 194 transitions, 615 flow. Second operand 12 states and 1406 transitions. [2022-11-18 19:55:50,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 287 transitions, 1736 flow [2022-11-18 19:55:50,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 287 transitions, 1736 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:55:50,620 INFO L231 Difference]: Finished difference. Result has 196 places, 197 transitions, 923 flow [2022-11-18 19:55:50,620 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} [2022-11-18 19:55:50,621 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2022-11-18 19:55:50,621 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 923 flow [2022-11-18 19:55:50,623 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) [2022-11-18 19:55:50,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:50,623 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] [2022-11-18 19:55:50,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:55:50,624 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)] === [2022-11-18 19:55:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1226447519, now seen corresponding path program 1 times [2022-11-18 19:55:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:50,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056664129] [2022-11-18 19:55:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:50,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:50,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:50,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056664129] [2022-11-18 19:55:50,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056664129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:50,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:50,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:50,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087113098] [2022-11-18 19:55:50,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:50,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:55:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:50,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:55:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:55:50,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 175 [2022-11-18 19:55:50,796 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) [2022-11-18 19:55:50,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:50,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 175 [2022-11-18 19:55:50,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:50,965 INFO L130 PetriNetUnfolder]: 57/330 cut-off events. [2022-11-18 19:55:50,965 INFO L131 PetriNetUnfolder]: For 849/929 co-relation queries the response was YES. [2022-11-18 19:55:50,967 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. [2022-11-18 19:55:50,968 INFO L137 encePairwiseOnDemand]: 170/175 looper letters, 23 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2022-11-18 19:55:50,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 136 transitions, 447 flow [2022-11-18 19:55:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 904 transitions. [2022-11-18 19:55:50,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8609523809523809 [2022-11-18 19:55:50,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 904 transitions. [2022-11-18 19:55:50,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 904 transitions. [2022-11-18 19:55:50,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:50,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 904 transitions. [2022-11-18 19:55:50,977 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) [2022-11-18 19:55:50,979 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) [2022-11-18 19:55:50,980 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) [2022-11-18 19:55:50,980 INFO L175 Difference]: Start difference. First operand has 196 places, 197 transitions, 923 flow. Second operand 6 states and 904 transitions. [2022-11-18 19:55:50,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 136 transitions, 447 flow [2022-11-18 19:55:50,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 136 transitions, 338 flow, removed 40 selfloop flow, removed 17 redundant places. [2022-11-18 19:55:50,985 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 276 flow [2022-11-18 19:55:50,986 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} [2022-11-18 19:55:50,987 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-11-18 19:55:50,987 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 276 flow [2022-11-18 19:55:50,987 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) [2022-11-18 19:55:50,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:50,988 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] [2022-11-18 19:55:50,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:55:50,988 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)] === [2022-11-18 19:55:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1976380995, now seen corresponding path program 1 times [2022-11-18 19:55:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:50,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598185977] [2022-11-18 19:55:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:50,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:51,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:51,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598185977] [2022-11-18 19:55:51,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598185977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:51,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:51,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:55:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609937576] [2022-11-18 19:55:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:51,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:55:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:55:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:55:51,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-11-18 19:55:51,309 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) [2022-11-18 19:55:51,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:51,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-11-18 19:55:51,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:51,486 INFO L130 PetriNetUnfolder]: 123/446 cut-off events. [2022-11-18 19:55:51,487 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2022-11-18 19:55:51,488 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. [2022-11-18 19:55:51,490 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 37 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2022-11-18 19:55:51,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 385 flow [2022-11-18 19:55:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:55:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:55:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-11-18 19:55:51,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8304761904761905 [2022-11-18 19:55:51,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-11-18 19:55:51,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-11-18 19:55:51,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:51,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-11-18 19:55:51,494 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) [2022-11-18 19:55:51,495 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) [2022-11-18 19:55:51,496 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) [2022-11-18 19:55:51,496 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 276 flow. Second operand 3 states and 436 transitions. [2022-11-18 19:55:51,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 385 flow [2022-11-18 19:55:51,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 378 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:55:51,500 INFO L231 Difference]: Finished difference. Result has 141 places, 132 transitions, 311 flow [2022-11-18 19:55:51,500 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} [2022-11-18 19:55:51,501 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-11-18 19:55:51,501 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 132 transitions, 311 flow [2022-11-18 19:55:51,502 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) [2022-11-18 19:55:51,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:51,502 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] [2022-11-18 19:55:51,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:55:51,503 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)] === [2022-11-18 19:55:51,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash 219140614, now seen corresponding path program 1 times [2022-11-18 19:55:51,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:51,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310531520] [2022-11-18 19:55:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:51,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:51,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:51,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:51,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310531520] [2022-11-18 19:55:51,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310531520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:51,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:51,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:55:51,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122313299] [2022-11-18 19:55:51,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:51,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:55:51,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:55:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:55:51,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-11-18 19:55:51,771 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) [2022-11-18 19:55:51,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:51,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-11-18 19:55:51,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:51,933 INFO L130 PetriNetUnfolder]: 130/465 cut-off events. [2022-11-18 19:55:51,933 INFO L131 PetriNetUnfolder]: For 206/212 co-relation queries the response was YES. [2022-11-18 19:55:51,935 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. [2022-11-18 19:55:51,937 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 39 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2022-11-18 19:55:51,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 448 flow [2022-11-18 19:55:51,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:55:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:55:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-11-18 19:55:51,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2022-11-18 19:55:51,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-11-18 19:55:51,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-11-18 19:55:51,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:51,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-11-18 19:55:51,941 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) [2022-11-18 19:55:51,942 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) [2022-11-18 19:55:51,942 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) [2022-11-18 19:55:51,943 INFO L175 Difference]: Start difference. First operand has 141 places, 132 transitions, 311 flow. Second operand 3 states and 435 transitions. [2022-11-18 19:55:51,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 448 flow [2022-11-18 19:55:51,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 142 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-18 19:55:51,948 INFO L231 Difference]: Finished difference. Result has 143 places, 137 transitions, 357 flow [2022-11-18 19:55:51,948 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} [2022-11-18 19:55:51,952 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -20 predicate places. [2022-11-18 19:55:51,952 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 357 flow [2022-11-18 19:55:51,953 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) [2022-11-18 19:55:51,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:51,953 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] [2022-11-18 19:55:51,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:55:51,954 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)] === [2022-11-18 19:55:51,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1168566715, now seen corresponding path program 1 times [2022-11-18 19:55:51,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:51,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598089762] [2022-11-18 19:55:51,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:51,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:55:52,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:55:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:55:52,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:55:52,184 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:55:52,185 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-18 19:55:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-18 19:55:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-18 19:55:52,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-18 19:55:52,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-18 19:55:52,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-18 19:55:52,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-18 19:55:52,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-18 19:55:52,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:55:52,189 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 19:55:52,195 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:55:52,195 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:55:52,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:55:52 BasicIcfg [2022-11-18 19:55:52,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:55:52,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:55:52,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:55:52,280 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:55:52,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:46" (3/4) ... [2022-11-18 19:55:52,283 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 19:55:52,366 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:55:52,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:55:52,368 INFO L158 Benchmark]: Toolchain (without parser) took 8185.58ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 90.8MB in the beginning and 97.7MB in the end (delta: -7.0MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,368 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:55:52,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1200.79ms. Allocated memory is still 132.1MB. Free memory was 90.5MB in the beginning and 65.3MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.24ms. Allocated memory is still 132.1MB. Free memory was 65.3MB in the beginning and 61.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,369 INFO L158 Benchmark]: Boogie Preprocessor took 76.16ms. Allocated memory is still 132.1MB. Free memory was 61.8MB in the beginning and 59.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,370 INFO L158 Benchmark]: RCFGBuilder took 841.25ms. Allocated memory is still 132.1MB. Free memory was 59.0MB in the beginning and 88.4MB in the end (delta: -29.4MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,371 INFO L158 Benchmark]: TraceAbstraction took 5877.91ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 87.6MB in the beginning and 116.6MB in the end (delta: -29.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,371 INFO L158 Benchmark]: Witness Printer took 86.73ms. Allocated memory is still 226.5MB. Free memory was 116.6MB in the beginning and 97.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 19:55:52,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1200.79ms. Allocated memory is still 132.1MB. Free memory was 90.5MB in the beginning and 65.3MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.24ms. Allocated memory is still 132.1MB. Free memory was 65.3MB in the beginning and 61.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.16ms. Allocated memory is still 132.1MB. Free memory was 61.8MB in the beginning and 59.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 841.25ms. Allocated memory is still 132.1MB. Free memory was 59.0MB in the beginning and 88.4MB in the end (delta: -29.4MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5877.91ms. Allocated memory was 132.1MB in the beginning and 226.5MB in the end (delta: 94.4MB). Free memory was 87.6MB in the beginning and 116.6MB in the end (delta: -29.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Witness Printer took 86.73ms. Allocated memory is still 226.5MB. Free memory was 116.6MB in the beginning and 97.7MB 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: 5.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 389 SdHoareTripleChecker+Invalid, 0.6s 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, 0.3s 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s 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! [2022-11-18 19:55:52,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc86dcbd-b1b6-4eba-b0dd-fc2ff5880c01/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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