./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f58f201da760ce0979516aee35f163e5c35cd587f19dc7144725dfa101235aca --- 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-b5237d8 [2022-11-21 16:25:43,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:25:43,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:25:43,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:25:43,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:25:43,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:25:43,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:25:43,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:25:43,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:25:43,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:25:43,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:25:43,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:25:43,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:25:43,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:25:43,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:25:43,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:25:43,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:25:43,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:25:43,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:25:43,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:25:43,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:25:43,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:25:43,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:25:43,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:25:43,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:25:43,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:25:43,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:25:43,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:25:43,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:25:43,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:25:43,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:25:43,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:25:43,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:25:43,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:25:43,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:25:43,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:25:43,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:25:43,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:25:43,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:25:43,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:25:43,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:25:43,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:25:43,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:25:43,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:25:43,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:25:43,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:25:43,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:25:43,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:25:43,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:25:43,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:25:43,523 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:25:43,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:25:43,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:25:43,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:25:43,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:25:43,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:25:43,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:25:43,526 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:25:43,526 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:25:43,526 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:25:43,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:25:43,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:25:43,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:25:43,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:25:43,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:25:43,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:25:43,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:25:43,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:25:43,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:25:43,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:25:43,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:25:43,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:25:43,529 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_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58f201da760ce0979516aee35f163e5c35cd587f19dc7144725dfa101235aca [2022-11-21 16:25:43,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:25:43,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:25:43,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:25:43,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:25:43,936 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:25:43,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:25:47,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:25:47,472 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:25:47,472 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:25:47,484 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/7a9cf4871/c0b423c9688149c787e1a7afe41f763a/FLAG694dd3935 [2022-11-21 16:25:47,499 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/7a9cf4871/c0b423c9688149c787e1a7afe41f763a [2022-11-21 16:25:47,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:25:47,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:25:47,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:25:47,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:25:47,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:25:47,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:25:47" (1/1) ... [2022-11-21 16:25:47,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4b27c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:47, skipping insertion in model container [2022-11-21 16:25:47,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:25:47" (1/1) ... [2022-11-21 16:25:47,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:25:47,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:25:47,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-21 16:25:48,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:25:48,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:25:48,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-21 16:25:48,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:25:48,263 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:25:48,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48 WrapperNode [2022-11-21 16:25:48,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:25:48,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:25:48,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:25:48,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:25:48,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,316 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 112 [2022-11-21 16:25:48,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:25:48,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:25:48,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:25:48,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:25:48,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:25:48,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:25:48,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:25:48,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:25:48,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (1/1) ... [2022-11-21 16:25:48,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:25:48,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:25:48,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:25:48,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:25:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:25:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:25:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:25:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:25:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:25:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:25:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:25:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:25:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:25:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:25:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:25:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:25:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:25:48,461 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:25:48,712 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:25:48,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:25:49,078 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:25:49,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:25:49,313 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:25:49,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:25:49 BoogieIcfgContainer [2022-11-21 16:25:49,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:25:49,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:25:49,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:25:49,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:25:49,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:25:47" (1/3) ... [2022-11-21 16:25:49,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6cd634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:25:49, skipping insertion in model container [2022-11-21 16:25:49,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:25:48" (2/3) ... [2022-11-21 16:25:49,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6cd634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:25:49, skipping insertion in model container [2022-11-21 16:25:49,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:25:49" (3/3) ... [2022-11-21 16:25:49,332 INFO L112 eAbstractionObserver]: Analyzing ICFG mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:25:49,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:25:49,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-21 16:25:49,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:25:49,446 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:25:49,488 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:25:49,523 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 102 transitions, 214 flow [2022-11-21 16:25:49,530 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 102 transitions, 214 flow [2022-11-21 16:25:49,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 102 transitions, 214 flow [2022-11-21 16:25:49,618 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-11-21 16:25:49,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:25:49,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-21 16:25:49,634 INFO L119 LiptonReduction]: Number of co-enabled transitions 1276 [2022-11-21 16:25:54,419 INFO L134 LiptonReduction]: Checked pairs total: 3109 [2022-11-21 16:25:54,420 INFO L136 LiptonReduction]: Total number of compositions: 106 [2022-11-21 16:25:54,433 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 62 flow [2022-11-21 16:25:54,467 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) [2022-11-21 16:25:54,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:25:54,503 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@c7ed1a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:25:54,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 16:25:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) [2022-11-21 16:25:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:25:54,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:54,512 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:25:54,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash 460, now seen corresponding path program 1 times [2022-11-21 16:25:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:54,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927772693] [2022-11-21 16:25:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:54,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:54,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:54,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:54,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927772693] [2022-11-21 16:25:54,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927772693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:54,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:54,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:25:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245091078] [2022-11-21 16:25:54,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:54,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:25:54,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:25:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:25:54,683 INFO L87 Difference]: Start difference. First operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-21 16:25:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:54,758 INFO L93 Difference]: Finished difference Result 204 states and 491 transitions. [2022-11-21 16:25:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:25:54,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-21 16:25:54,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:54,780 INFO L225 Difference]: With dead ends: 204 [2022-11-21 16:25:54,780 INFO L226 Difference]: Without dead ends: 204 [2022-11-21 16:25:54,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:25:54,787 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:54,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-21 16:25:54,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-21 16:25:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 2.4673366834170856) internal successors, (491), 203 states have internal predecessors, (491), 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) [2022-11-21 16:25:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 491 transitions. [2022-11-21 16:25:54,866 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 491 transitions. Word has length 1 [2022-11-21 16:25:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:54,867 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 491 transitions. [2022-11-21 16:25:54,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-21 16:25:54,867 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 491 transitions. [2022-11-21 16:25:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 16:25:54,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:54,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 16:25:54,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:25:54,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash 454361, now seen corresponding path program 1 times [2022-11-21 16:25:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:54,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22745322] [2022-11-21 16:25:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:55,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:55,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22745322] [2022-11-21 16:25:55,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22745322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:55,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:55,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:25:55,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247461977] [2022-11-21 16:25:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:55,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:25:55,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:55,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:25:55,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:25:55,281 INFO L87 Difference]: Start difference. First operand 204 states and 491 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:25:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:55,375 INFO L93 Difference]: Finished difference Result 167 states and 394 transitions. [2022-11-21 16:25:55,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:25:55,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-21 16:25:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:55,379 INFO L225 Difference]: With dead ends: 167 [2022-11-21 16:25:55,380 INFO L226 Difference]: Without dead ends: 162 [2022-11-21 16:25:55,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:25:55,383 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:55,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-21 16:25:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-21 16:25:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 2.40625) internal successors, (385), 161 states have internal predecessors, (385), 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) [2022-11-21 16:25:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2022-11-21 16:25:55,405 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2022-11-21 16:25:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:55,406 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2022-11-21 16:25:55,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:25:55,407 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2022-11-21 16:25:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:25:55,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:55,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:55,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:25:55,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:55,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash -28189418, now seen corresponding path program 1 times [2022-11-21 16:25:55,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:55,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683908936] [2022-11-21 16:25:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:55,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:55,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683908936] [2022-11-21 16:25:55,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683908936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:55,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:55,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:25:55,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601733790] [2022-11-21 16:25:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:55,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:25:55,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:55,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:25:55,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:25:55,862 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:25:55,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:55,930 INFO L93 Difference]: Finished difference Result 137 states and 320 transitions. [2022-11-21 16:25:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:25:55,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-21 16:25:55,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:55,933 INFO L225 Difference]: With dead ends: 137 [2022-11-21 16:25:55,934 INFO L226 Difference]: Without dead ends: 137 [2022-11-21 16:25:55,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:25:55,939 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:55,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-21 16:25:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-21 16:25:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 2.3529411764705883) internal successors, (320), 136 states have internal predecessors, (320), 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) [2022-11-21 16:25:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2022-11-21 16:25:55,949 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 8 [2022-11-21 16:25:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:55,949 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2022-11-21 16:25:55,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:25:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2022-11-21 16:25:55,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:25:55,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:55,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:55,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:25:55,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:55,952 INFO L85 PathProgramCache]: Analyzing trace with hash -28189464, now seen corresponding path program 1 times [2022-11-21 16:25:55,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:55,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069825741] [2022-11-21 16:25:55,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:56,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:56,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069825741] [2022-11-21 16:25:56,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069825741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:56,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:56,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:25:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852630335] [2022-11-21 16:25:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:56,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:25:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:25:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:25:56,149 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:25:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:56,315 INFO L93 Difference]: Finished difference Result 224 states and 487 transitions. [2022-11-21 16:25:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:25:56,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-21 16:25:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:56,318 INFO L225 Difference]: With dead ends: 224 [2022-11-21 16:25:56,318 INFO L226 Difference]: Without dead ends: 160 [2022-11-21 16:25:56,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:25:56,320 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:56,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-21 16:25:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2022-11-21 16:25:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 2.251851851851852) internal successors, (304), 135 states have internal predecessors, (304), 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) [2022-11-21 16:25:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 304 transitions. [2022-11-21 16:25:56,327 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 304 transitions. Word has length 8 [2022-11-21 16:25:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 304 transitions. [2022-11-21 16:25:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:25:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 304 transitions. [2022-11-21 16:25:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:25:56,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:56,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:56,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:25:56,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:56,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:56,329 INFO L85 PathProgramCache]: Analyzing trace with hash -873985936, now seen corresponding path program 1 times [2022-11-21 16:25:56,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:56,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553555043] [2022-11-21 16:25:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:56,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:56,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:56,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553555043] [2022-11-21 16:25:56,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553555043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:56,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:56,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:25:56,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611029440] [2022-11-21 16:25:56,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:56,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:25:56,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:25:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:25:56,500 INFO L87 Difference]: Start difference. First operand 136 states and 304 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-21 16:25:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:56,615 INFO L93 Difference]: Finished difference Result 104 states and 188 transitions. [2022-11-21 16:25:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:25:56,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-21 16:25:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:56,617 INFO L225 Difference]: With dead ends: 104 [2022-11-21 16:25:56,617 INFO L226 Difference]: Without dead ends: 76 [2022-11-21 16:25:56,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:25:56,618 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:56,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-21 16:25:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-21 16:25:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.7066666666666668) internal successors, (128), 75 states have internal predecessors, (128), 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) [2022-11-21 16:25:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 128 transitions. [2022-11-21 16:25:56,623 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 128 transitions. Word has length 9 [2022-11-21 16:25:56,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:56,623 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 128 transitions. [2022-11-21 16:25:56,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-21 16:25:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 128 transitions. [2022-11-21 16:25:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:25:56,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:56,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:56,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:25:56,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1886274690, now seen corresponding path program 1 times [2022-11-21 16:25:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:56,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222538269] [2022-11-21 16:25:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:56,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222538269] [2022-11-21 16:25:56,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222538269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:56,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:56,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:25:56,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206766183] [2022-11-21 16:25:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:56,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:25:56,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:25:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:25:56,848 INFO L87 Difference]: Start difference. First operand 76 states and 128 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 16:25:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:56,963 INFO L93 Difference]: Finished difference Result 54 states and 83 transitions. [2022-11-21 16:25:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:25:56,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2022-11-21 16:25:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:56,964 INFO L225 Difference]: With dead ends: 54 [2022-11-21 16:25:56,964 INFO L226 Difference]: Without dead ends: 38 [2022-11-21 16:25:56,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:25:56,965 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 24 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:56,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-21 16:25:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2022-11-21 16:25:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 34 states have internal predecessors, (52), 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) [2022-11-21 16:25:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2022-11-21 16:25:56,968 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 52 transitions. Word has length 12 [2022-11-21 16:25:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:56,969 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 52 transitions. [2022-11-21 16:25:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 16:25:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2022-11-21 16:25:56,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:25:56,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:56,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:56,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:25:56,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:56,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:56,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1316980630, now seen corresponding path program 1 times [2022-11-21 16:25:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750549684] [2022-11-21 16:25:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:57,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:57,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750549684] [2022-11-21 16:25:57,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750549684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:57,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:57,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:25:57,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473427478] [2022-11-21 16:25:57,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:57,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:25:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:57,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:25:57,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:25:57,200 INFO L87 Difference]: Start difference. First operand 35 states and 52 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-11-21 16:25:57,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:57,290 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-11-21 16:25:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:25:57,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) Word has length 16 [2022-11-21 16:25:57,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:57,292 INFO L225 Difference]: With dead ends: 50 [2022-11-21 16:25:57,292 INFO L226 Difference]: Without dead ends: 33 [2022-11-21 16:25:57,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:25:57,293 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:57,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:57,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-21 16:25:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-21 16:25:57,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.5) internal successors, (48), 32 states have internal predecessors, (48), 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) [2022-11-21 16:25:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-11-21 16:25:57,296 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 16 [2022-11-21 16:25:57,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:57,296 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-11-21 16:25:57,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-11-21 16:25:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-11-21 16:25:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:25:57,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:57,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:57,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:25:57,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:57,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash -611932392, now seen corresponding path program 2 times [2022-11-21 16:25:57,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:57,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645098356] [2022-11-21 16:25:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:57,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:57,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:57,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645098356] [2022-11-21 16:25:57,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645098356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:57,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:57,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:25:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633187640] [2022-11-21 16:25:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:25:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:25:57,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:25:57,922 INFO L87 Difference]: Start difference. First operand 33 states and 48 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-21 16:25:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:58,091 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-21 16:25:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:25:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 16 [2022-11-21 16:25:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:58,095 INFO L225 Difference]: With dead ends: 42 [2022-11-21 16:25:58,096 INFO L226 Difference]: Without dead ends: 25 [2022-11-21 16:25:58,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:25:58,097 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 28 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:58,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:25:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-21 16:25:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-21 16:25:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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) [2022-11-21 16:25:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-21 16:25:58,099 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2022-11-21 16:25:58,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:58,100 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-21 16:25:58,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-21 16:25:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-21 16:25:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:25:58,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:58,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:58,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:25:58,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:25:58,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:58,102 INFO L85 PathProgramCache]: Analyzing trace with hash -162174310, now seen corresponding path program 3 times [2022-11-21 16:25:58,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:58,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346629696] [2022-11-21 16:25:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:58,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:25:58,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:25:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:25:58,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:25:58,268 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:25:58,269 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-21 16:25:58,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-21 16:25:58,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-21 16:25:58,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-21 16:25:58,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-21 16:25:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-21 16:25:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-21 16:25:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-21 16:25:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-21 16:25:58,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-21 16:25:58,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:25:58,280 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:58,287 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:25:58,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:25:58,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:25:58 BasicIcfg [2022-11-21 16:25:58,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:25:58,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:25:58,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:25:58,372 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:25:58,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:25:49" (3/4) ... [2022-11-21 16:25:58,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:25:58,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:25:58,376 INFO L158 Benchmark]: Toolchain (without parser) took 10872.99ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 140.2MB in the beginning and 236.6MB in the end (delta: -96.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:25:58,376 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 182.5MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:25:58,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.10ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 117.6MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:25:58,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.66ms. Allocated memory is still 182.5MB. Free memory was 117.6MB in the beginning and 115.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:25:58,377 INFO L158 Benchmark]: Boogie Preprocessor took 40.97ms. Allocated memory is still 182.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:25:58,378 INFO L158 Benchmark]: RCFGBuilder took 962.11ms. Allocated memory is still 182.5MB. Free memory was 113.4MB in the beginning and 81.2MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 16:25:58,378 INFO L158 Benchmark]: TraceAbstraction took 9046.21ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 80.8MB in the beginning and 236.6MB in the end (delta: -155.8MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2022-11-21 16:25:58,379 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 272.6MB. Free memory is still 236.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:25:58,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 182.5MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 760.10ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 117.6MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.66ms. Allocated memory is still 182.5MB. Free memory was 117.6MB in the beginning and 115.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.97ms. Allocated memory is still 182.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 962.11ms. Allocated memory is still 182.5MB. Free memory was 113.4MB in the beginning and 81.2MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9046.21ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 80.8MB in the beginning and 236.6MB in the end (delta: -155.8MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 272.6MB. Free memory is still 236.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 107 PlacesBefore, 32 PlacesAfterwards, 102 TransitionsBefore, 26 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 3109 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1833, independent: 1714, independent conditional: 0, independent unconditional: 1714, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 924, independent: 890, independent conditional: 0, independent unconditional: 890, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 924, independent: 878, independent conditional: 0, independent unconditional: 878, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 263, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1833, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 924, unknown conditional: 0, unknown unconditional: 924] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L716] 0 int y = 0; [L717] 0 _Bool y$flush_delayed; [L718] 0 int y$mem_tmp; [L719] 0 _Bool y$r_buff0_thd0; [L720] 0 _Bool y$r_buff0_thd1; [L721] 0 _Bool y$r_buff0_thd2; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$read_delayed; [L726] 0 int *y$read_delayed_var; [L727] 0 int y$w_buff0; [L728] 0 _Bool y$w_buff0_used; [L729] 0 int y$w_buff1; [L730] 0 _Bool y$w_buff1_used; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L805] 0 pthread_t t1441; [L806] FCALL, FORK 0 pthread_create(&t1441, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1441, ((void *)0), P0, ((void *)0))=-2, t1441={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L807] 0 pthread_t t1442; [L808] FCALL, FORK 0 pthread_create(&t1442, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1442, ((void *)0), P1, ((void *)0))=-1, t1441={5:0}, t1442={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 y$w_buff1 = y$w_buff0 [L737] 1 y$w_buff0 = 1 [L738] 1 y$w_buff1_used = y$w_buff0_used [L739] 1 y$w_buff0_used = (_Bool)1 [L740] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L740] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L741] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L742] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L743] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L744] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L747] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L764] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L767] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L768] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L769] 2 y$flush_delayed = weak$$choice2 [L770] 2 y$mem_tmp = y [L771] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L772] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L773] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L774] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L775] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L777] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 __unbuffered_p1_EAX = y [L779] 2 y = y$flush_delayed ? y$mem_tmp : y [L780] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L750] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L751] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L752] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L753] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L754] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L783] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L784] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L785] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L786] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L787] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L790] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L792] 2 return 0; [L810] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L812] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L812] RET 0 assume_abort_if_not(main$tmp_guard0) [L814] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L815] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L816] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L817] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L818] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1441={5:0}, t1442={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L821] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L823] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 803]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 806]: 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: 808]: 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 5 procedures, 120 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 440 IncrementalHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 11 mSDtfsCounter, 440 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 could not prove your program: unable to determine feasibility of some traces [2022-11-21 16:25:58,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f58f201da760ce0979516aee35f163e5c35cd587f19dc7144725dfa101235aca --- 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-b5237d8 [2022-11-21 16:26:00,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:26:00,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:26:01,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:26:01,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:26:01,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:26:01,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:26:01,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:26:01,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:26:01,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:26:01,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:26:01,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:26:01,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:26:01,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:26:01,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:26:01,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:26:01,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:26:01,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:26:01,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:26:01,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:26:01,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:26:01,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:26:01,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:26:01,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:26:01,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:26:01,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:26:01,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:26:01,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:26:01,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:26:01,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:26:01,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:26:01,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:26:01,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:26:01,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:26:01,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:26:01,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:26:01,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:26:01,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:26:01,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:26:01,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:26:01,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:26:01,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 16:26:01,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:26:01,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:26:01,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:26:01,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:26:01,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:26:01,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:26:01,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:26:01,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:26:01,155 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:26:01,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:26:01,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:26:01,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:26:01,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:26:01,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:26:01,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:26:01,158 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:26:01,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:26:01,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:26:01,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:26:01,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:26:01,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:26:01,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:26:01,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:01,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:26:01,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:26:01,160 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:26:01,160 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:26:01,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:26:01,161 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/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_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> f58f201da760ce0979516aee35f163e5c35cd587f19dc7144725dfa101235aca [2022-11-21 16:26:01,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:26:01,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:26:01,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:26:01,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:26:01,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:26:01,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:26:04,598 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:26:04,979 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:26:04,990 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:26:05,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/bd8b9e3d7/49956704735c4604936d4ca379146671/FLAGd022c00f1 [2022-11-21 16:26:05,023 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/data/bd8b9e3d7/49956704735c4604936d4ca379146671 [2022-11-21 16:26:05,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:26:05,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:26:05,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:05,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:26:05,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:26:05,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9da9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05, skipping insertion in model container [2022-11-21 16:26:05,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:26:05,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:26:05,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-21 16:26:05,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:05,619 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:26:05,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/sv-benchmarks/c/pthread-wmm/mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-21 16:26:05,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:05,768 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:26:05,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05 WrapperNode [2022-11-21 16:26:05,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:05,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:05,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:26:05,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:26:05,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,873 INFO L138 Inliner]: procedures = 178, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-11-21 16:26:05,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:05,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:26:05,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:26:05,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:26:05,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:26:05,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:26:05,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:26:05,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:26:05,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:05,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:26:05,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:26:06,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:26:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:26:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:26:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:26:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:26:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:26:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:26:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:26:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:26:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:26:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:26:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:26:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:26:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:26:06,059 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:26:06,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:26:06,206 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:26:06,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:26:06,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:26:06,876 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:26:06,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06 BoogieIcfgContainer [2022-11-21 16:26:06,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:26:06,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:26:06,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:26:06,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:26:06,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:26:05" (1/3) ... [2022-11-21 16:26:06,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f750c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:26:06, skipping insertion in model container [2022-11-21 16:26:06,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (2/3) ... [2022-11-21 16:26:06,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f750c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:26:06, skipping insertion in model container [2022-11-21 16:26:06,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06" (3/3) ... [2022-11-21 16:26:06,894 INFO L112 eAbstractionObserver]: Analyzing ICFG mix054_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-21 16:26:06,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:26:06,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-21 16:26:06,916 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:26:07,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:26:07,060 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:26:07,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 103 transitions, 216 flow [2022-11-21 16:26:07,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 103 transitions, 216 flow [2022-11-21 16:26:07,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 103 transitions, 216 flow [2022-11-21 16:26:07,132 INFO L130 PetriNetUnfolder]: 2/101 cut-off events. [2022-11-21 16:26:07,132 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:26:07,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-21 16:26:07,140 INFO L119 LiptonReduction]: Number of co-enabled transitions 1276 [2022-11-21 16:26:15,006 INFO L134 LiptonReduction]: Checked pairs total: 3261 [2022-11-21 16:26:15,007 INFO L136 LiptonReduction]: Total number of compositions: 109 [2022-11-21 16:26:15,018 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 62 flow [2022-11-21 16:26:15,083 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) [2022-11-21 16:26:15,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:26:15,109 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@763b4afc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:26:15,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 16:26:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) [2022-11-21 16:26:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:26:15,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:15,119 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:26:15,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:15,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:15,126 INFO L85 PathProgramCache]: Analyzing trace with hash 466, now seen corresponding path program 1 times [2022-11-21 16:26:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:15,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739809499] [2022-11-21 16:26:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:15,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:15,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:15,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:26:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:15,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:26:15,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:15,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:15,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:15,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739809499] [2022-11-21 16:26:15,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739809499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:15,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:15,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:26:15,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330373126] [2022-11-21 16:26:15,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:15,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:26:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:26:15,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:26:15,321 INFO L87 Difference]: Start difference. First operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-21 16:26:15,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:15,442 INFO L93 Difference]: Finished difference Result 204 states and 491 transitions. [2022-11-21 16:26:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:26:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-21 16:26:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:15,472 INFO L225 Difference]: With dead ends: 204 [2022-11-21 16:26:15,472 INFO L226 Difference]: Without dead ends: 204 [2022-11-21 16:26:15,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:26:15,492 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:15,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-21 16:26:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-21 16:26:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 2.4673366834170856) internal successors, (491), 203 states have internal predecessors, (491), 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) [2022-11-21 16:26:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 491 transitions. [2022-11-21 16:26:15,567 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 491 transitions. Word has length 1 [2022-11-21 16:26:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:15,568 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 491 transitions. [2022-11-21 16:26:15,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-21 16:26:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 491 transitions. [2022-11-21 16:26:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 16:26:15,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:15,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 16:26:15,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-21 16:26:15,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:15,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:15,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash 457364, now seen corresponding path program 1 times [2022-11-21 16:26:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:15,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490739363] [2022-11-21 16:26:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:15,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:15,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:15,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:15,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:26:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:15,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:26:15,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:15,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:15,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:15,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490739363] [2022-11-21 16:26:15,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490739363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:15,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:15,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:26:15,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048727127] [2022-11-21 16:26:15,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:15,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:26:15,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:15,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:26:15,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:26:15,938 INFO L87 Difference]: Start difference. First operand 204 states and 491 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:26:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:16,051 INFO L93 Difference]: Finished difference Result 167 states and 394 transitions. [2022-11-21 16:26:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:26:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-21 16:26:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:16,058 INFO L225 Difference]: With dead ends: 167 [2022-11-21 16:26:16,063 INFO L226 Difference]: Without dead ends: 162 [2022-11-21 16:26:16,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:26:16,065 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:16,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:16,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-21 16:26:16,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-21 16:26:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 2.40625) internal successors, (385), 161 states have internal predecessors, (385), 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) [2022-11-21 16:26:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2022-11-21 16:26:16,103 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2022-11-21 16:26:16,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:16,104 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2022-11-21 16:26:16,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:26:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2022-11-21 16:26:16,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:26:16,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:16,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:16,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:16,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:16,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:16,309 INFO L85 PathProgramCache]: Analyzing trace with hash 189103457, now seen corresponding path program 1 times [2022-11-21 16:26:16,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:16,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097899815] [2022-11-21 16:26:16,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:16,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:16,312 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:16,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 16:26:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:16,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:26:16,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:16,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:16,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:16,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097899815] [2022-11-21 16:26:16,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097899815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:16,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:16,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:26:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485254049] [2022-11-21 16:26:16,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:16,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:16,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:16,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:16,500 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:26:16,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:16,662 INFO L93 Difference]: Finished difference Result 107 states and 201 transitions. [2022-11-21 16:26:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:26:16,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-21 16:26:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:16,663 INFO L225 Difference]: With dead ends: 107 [2022-11-21 16:26:16,663 INFO L226 Difference]: Without dead ends: 82 [2022-11-21 16:26:16,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:16,665 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:16,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-21 16:26:16,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-21 16:26:16,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.8125) internal successors, (145), 81 states have internal predecessors, (145), 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) [2022-11-21 16:26:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 145 transitions. [2022-11-21 16:26:16,674 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 145 transitions. Word has length 8 [2022-11-21 16:26:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:16,674 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 145 transitions. [2022-11-21 16:26:16,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:26:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 145 transitions. [2022-11-21 16:26:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:26:16,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:16,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:16,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:16,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:16,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1915306879, now seen corresponding path program 1 times [2022-11-21 16:26:16,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:16,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115669555] [2022-11-21 16:26:16,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:16,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:16,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:16,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:16,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 16:26:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:17,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:26:17,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:17,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:17,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115669555] [2022-11-21 16:26:17,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115669555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:17,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:17,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:26:17,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089325418] [2022-11-21 16:26:17,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:17,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:26:17,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:17,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:26:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:17,095 INFO L87 Difference]: Start difference. First operand 82 states and 145 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 16:26:17,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:17,270 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2022-11-21 16:26:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:26:17,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2022-11-21 16:26:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:17,272 INFO L225 Difference]: With dead ends: 51 [2022-11-21 16:26:17,272 INFO L226 Difference]: Without dead ends: 42 [2022-11-21 16:26:17,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:26:17,273 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:17,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 8 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:26:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-21 16:26:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-21 16:26:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 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) [2022-11-21 16:26:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2022-11-21 16:26:17,279 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 12 [2022-11-21 16:26:17,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:17,279 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2022-11-21 16:26:17,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 16:26:17,280 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2022-11-21 16:26:17,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:26:17,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:17,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:17,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:17,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:17,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1709699560, now seen corresponding path program 1 times [2022-11-21 16:26:17,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:17,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188615077] [2022-11-21 16:26:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:17,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:17,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:17,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:17,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-21 16:26:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:17,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 16:26:17,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:17,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:17,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188615077] [2022-11-21 16:26:17,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188615077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:17,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:17,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:26:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3797765] [2022-11-21 16:26:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:17,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:17,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:17,904 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-21 16:26:18,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:18,007 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2022-11-21 16:26:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:26:18,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) Word has length 16 [2022-11-21 16:26:18,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:18,008 INFO L225 Difference]: With dead ends: 41 [2022-11-21 16:26:18,008 INFO L226 Difference]: Without dead ends: 41 [2022-11-21 16:26:18,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:18,009 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:18,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-21 16:26:18,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-21 16:26:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.6) internal successors, (64), 40 states have internal predecessors, (64), 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) [2022-11-21 16:26:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2022-11-21 16:26:18,013 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 16 [2022-11-21 16:26:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:18,013 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2022-11-21 16:26:18,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-21 16:26:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2022-11-21 16:26:18,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:26:18,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:18,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:18,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:18,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:18,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:18,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:18,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1709699508, now seen corresponding path program 1 times [2022-11-21 16:26:18,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:18,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480275071] [2022-11-21 16:26:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:18,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:18,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:18,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:18,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-21 16:26:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:18,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:26:18,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:18,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:18,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:18,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480275071] [2022-11-21 16:26:18,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480275071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:18,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:18,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:26:18,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237034617] [2022-11-21 16:26:18,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:18,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:18,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:18,388 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-21 16:26:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:18,491 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2022-11-21 16:26:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:26:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2022-11-21 16:26:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:18,493 INFO L225 Difference]: With dead ends: 56 [2022-11-21 16:26:18,493 INFO L226 Difference]: Without dead ends: 33 [2022-11-21 16:26:18,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:18,494 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:18,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-21 16:26:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-21 16:26:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.5) internal successors, (48), 32 states have internal predecessors, (48), 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) [2022-11-21 16:26:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-11-21 16:26:18,498 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 16 [2022-11-21 16:26:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:18,498 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-11-21 16:26:18,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-21 16:26:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-11-21 16:26:18,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:26:18,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:18,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:18,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:18,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:18,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:18,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash 363050158, now seen corresponding path program 2 times [2022-11-21 16:26:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:18,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370001959] [2022-11-21 16:26:18,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:26:18,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:18,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:18,703 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:18,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-21 16:26:18,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:26:18,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:26:18,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:26:18,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:26:18,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:18,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:26:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370001959] [2022-11-21 16:26:18,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370001959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:18,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:18,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:26:18,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50565183] [2022-11-21 16:26:18,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:18,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:26:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:26:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:26:18,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:26:18,979 INFO L87 Difference]: Start difference. First operand 33 states and 48 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-21 16:26:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:19,171 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-21 16:26:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:26:19,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 16 [2022-11-21 16:26:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:19,172 INFO L225 Difference]: With dead ends: 42 [2022-11-21 16:26:19,172 INFO L226 Difference]: Without dead ends: 25 [2022-11-21 16:26:19,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:26:19,173 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 28 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:19,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:26:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-21 16:26:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-21 16:26:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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) [2022-11-21 16:26:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-21 16:26:19,176 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2022-11-21 16:26:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-21 16:26:19,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-21 16:26:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-21 16:26:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:26:19,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:19,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:19,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:19,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:19,378 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-21 16:26:19,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1360682912, now seen corresponding path program 3 times [2022-11-21 16:26:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:26:19,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545279547] [2022-11-21 16:26:19,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:26:19,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:19,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:26:19,380 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:26:19,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-21 16:26:19,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-21 16:26:19,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-21 16:26:19,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:26:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:26:19,622 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:26:19,622 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:26:19,623 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-21 16:26:19,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-21 16:26:19,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-21 16:26:19,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-21 16:26:19,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-21 16:26:19,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-21 16:26:19,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-21 16:26:19,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-21 16:26:19,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-21 16:26:19,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-21 16:26:19,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:19,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:26:19,840 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2022-11-21 16:26:19,845 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:26:19,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:26:19,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:26:19 BasicIcfg [2022-11-21 16:26:19,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:26:19,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:26:19,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:26:19,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:26:19,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06" (3/4) ... [2022-11-21 16:26:19,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:26:19,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:26:19,942 INFO L158 Benchmark]: Toolchain (without parser) took 14915.04ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 64.6MB in the beginning and 61.5MB in the end (delta: 3.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-21 16:26:19,943 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:26:19,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.57ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 62.9MB in the end (delta: 1.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-21 16:26:19,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.72ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 60.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:26:19,944 INFO L158 Benchmark]: Boogie Preprocessor took 72.10ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 58.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:26:19,944 INFO L158 Benchmark]: RCFGBuilder took 926.53ms. Allocated memory is still 88.1MB. Free memory was 58.4MB in the beginning and 44.4MB in the end (delta: 14.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-21 16:26:19,945 INFO L158 Benchmark]: TraceAbstraction took 13051.63ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 43.6MB in the beginning and 61.5MB in the end (delta: -17.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-11-21 16:26:19,945 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 130.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:26:19,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.57ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 62.9MB in the end (delta: 1.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.72ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 60.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.10ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 58.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 926.53ms. Allocated memory is still 88.1MB. Free memory was 58.4MB in the beginning and 44.4MB in the end (delta: 14.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13051.63ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 43.6MB in the beginning and 61.5MB in the end (delta: -17.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 130.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 108 PlacesBefore, 32 PlacesAfterwards, 103 TransitionsBefore, 26 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 109 TotalNumberOfCompositions, 3261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1812, independent: 1690, independent conditional: 0, independent unconditional: 1690, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 935, independent: 900, independent conditional: 0, independent unconditional: 900, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 935, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 355, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 319, dependent conditional: 0, dependent unconditional: 319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1812, independent: 790, independent conditional: 0, independent unconditional: 790, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 935, unknown conditional: 0, unknown unconditional: 935] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L716] 0 int y = 0; [L717] 0 _Bool y$flush_delayed; [L718] 0 int y$mem_tmp; [L719] 0 _Bool y$r_buff0_thd0; [L720] 0 _Bool y$r_buff0_thd1; [L721] 0 _Bool y$r_buff0_thd2; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$read_delayed; [L726] 0 int *y$read_delayed_var; [L727] 0 int y$w_buff0; [L728] 0 _Bool y$w_buff0_used; [L729] 0 int y$w_buff1; [L730] 0 _Bool y$w_buff1_used; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L805] 0 pthread_t t1441; [L806] FCALL, FORK 0 pthread_create(&t1441, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1441, ((void *)0), P0, ((void *)0))=0, t1441={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L807] 0 pthread_t t1442; [L808] FCALL, FORK 0 pthread_create(&t1442, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1442, ((void *)0), P1, ((void *)0))=1, t1441={3:0}, t1442={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 y$w_buff1 = y$w_buff0 [L737] 1 y$w_buff0 = 1 [L738] 1 y$w_buff1_used = y$w_buff0_used [L739] 1 y$w_buff0_used = (_Bool)1 [L740] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L740] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L741] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L742] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L743] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L744] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L747] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L764] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L767] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L768] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L769] 2 y$flush_delayed = weak$$choice2 [L770] 2 y$mem_tmp = y [L771] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L772] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L773] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L774] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L775] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L777] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 __unbuffered_p1_EAX = y [L779] 2 y = y$flush_delayed ? y$mem_tmp : y [L780] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L783] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L784] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L785] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L786] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L787] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L790] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L792] 2 return 0; [L750] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L751] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L752] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L753] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L754] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L810] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L812] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L812] RET 0 assume_abort_if_not(main$tmp_guard0) [L814] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L815] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L816] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L817] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L818] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1441={3:0}, t1442={7:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L821] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L823] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 803]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 806]: 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: 808]: 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 5 procedures, 121 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 65 ConstructedInterpolants, 13 QuantifiedInterpolants, 515 SizeOfPredicates, 10 NumberOfNonLiveVariables, 659 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 could not prove your program: unable to determine feasibility of some traces [2022-11-21 16:26:19,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8828c9b-7101-4c8f-8ce7-1e6d8ebc7fb8/bin/uautomizer-vX5HgA9Q3a/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 Result: UNKNOWN: Overapproximated counterexample