./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee --- 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-6b4ec56 [2022-11-20 16:22:05,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:22:05,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:22:05,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:22:05,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:22:05,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:22:05,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:22:05,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:22:05,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:22:05,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:22:05,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:22:05,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:22:05,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:22:05,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:22:05,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:22:05,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:22:05,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:22:05,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:22:05,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:22:05,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:22:05,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:22:05,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:22:05,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:22:05,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:22:05,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:22:05,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:22:05,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:22:05,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:22:05,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:22:05,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:22:05,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:22:05,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:22:05,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:22:05,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:22:05,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:22:05,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:22:05,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:22:05,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:22:05,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:22:05,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:22:05,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:22:05,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-20 16:22:05,494 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:22:05,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:22:05,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 16:22:05,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 16:22:05,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:22:05,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 16:22:05,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:22:05,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:22:05,498 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 16:22:05,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:22:05,498 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 16:22:05,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:22:05,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:22:05,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 16:22:05,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:22:05,500 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 16:22:05,500 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 16:22:05,500 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 16:22:05,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:22:05,501 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 16:22:05,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 16:22:05,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:22:05,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:22:05,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 16:22:05,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 16:22:05,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:22:05,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:22:05,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:22:05,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 16:22:05,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:22:05,504 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 16:22:05,504 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-20 16:22:05,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-20 16:22:05,505 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-20 16:22:05,505 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-20 16:22:05,506 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_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee [2022-11-20 16:22:05,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:22:05,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:22:05,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:22:05,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:22:05,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:22:05,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-20 16:22:09,155 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:22:09,506 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:22:09,507 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-20 16:22:09,523 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/data/737c864c5/95b337b139e54b13b435e508e19e2a66/FLAG16cbd1252 [2022-11-20 16:22:09,540 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/data/737c864c5/95b337b139e54b13b435e508e19e2a66 [2022-11-20 16:22:09,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:22:09,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:22:09,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:22:09,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:22:09,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:22:09,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:22:09" (1/1) ... [2022-11-20 16:22:09,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:09, skipping insertion in model container [2022-11-20 16:22:09,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:22:09" (1/1) ... [2022-11-20 16:22:09,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:22:09,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:22:09,844 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_3f07141d-4193-49cd-bbaa-6996260a42d3/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-20 16:22:10,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:22:10,251 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:22:10,280 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_3f07141d-4193-49cd-bbaa-6996260a42d3/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-20 16:22:10,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:22:10,440 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:22:10,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10 WrapperNode [2022-11-20 16:22:10,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:22:10,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:22:10,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:22:10,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:22:10,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,502 INFO L138 Inliner]: procedures = 177, calls = 89, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 181 [2022-11-20 16:22:10,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:22:10,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:22:10,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:22:10,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:22:10,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:22:10,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:22:10,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:22:10,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:22:10,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (1/1) ... [2022-11-20 16:22:10,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:22:10,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:10,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 16:22:10,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 16:22:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:22:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:22:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 16:22:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:22:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:22:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:22:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 16:22:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 16:22:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 16:22:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 16:22:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 16:22:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 16:22:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 16:22:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 16:22:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:22:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 16:22:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:22:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:22:10,684 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 16:22:10,937 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:22:10,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:22:11,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:22:12,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:22:12,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 16:22:12,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:22:12 BoogieIcfgContainer [2022-11-20 16:22:12,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:22:12,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 16:22:12,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 16:22:12,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 16:22:12,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:22:09" (1/3) ... [2022-11-20 16:22:12,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f4c414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:22:12, skipping insertion in model container [2022-11-20 16:22:12,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:22:10" (2/3) ... [2022-11-20 16:22:12,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f4c414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:22:12, skipping insertion in model container [2022-11-20 16:22:12,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:22:12" (3/3) ... [2022-11-20 16:22:12,398 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.opt.i [2022-11-20 16:22:12,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 16:22:12,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-11-20 16:22:12,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 16:22:12,584 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 16:22:12,644 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:12,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:22:12,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:12,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:22:12,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-20 16:22:12,725 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:22:12,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork3 ======== [2022-11-20 16:22:12,747 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=PARTIAL_ORDER_FA, 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;@28c82887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:12,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 16:22:15,384 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 16:22:15,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:15,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1591265721, now seen corresponding path program 1 times [2022-11-20 16:22:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:15,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280778446] [2022-11-20 16:22:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:15,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:15,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:15,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:15,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280778446] [2022-11-20 16:22:15,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280778446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:15,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:15,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:22:15,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644764661] [2022-11-20 16:22:15,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:15,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:15,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:15,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:15,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2022-11-20 16:22:15,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:18,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 16:22:18,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 16:22:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2098363846, now seen corresponding path program 1 times [2022-11-20 16:22:18,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:18,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117487454] [2022-11-20 16:22:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:18,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:18,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:18,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117487454] [2022-11-20 16:22:18,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117487454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:18,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:18,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 16:22:18,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285537887] [2022-11-20 16:22:18,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:18,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 16:22:18,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 16:22:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 16:22:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:18,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:18,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-20 16:22:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:21,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 16:22:21,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 16:22:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1319589207, now seen corresponding path program 1 times [2022-11-20 16:22:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:21,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607924443] [2022-11-20 16:22:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:21,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:23,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:23,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:23,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607924443] [2022-11-20 16:22:23,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607924443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:23,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:23,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 16:22:23,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280272718] [2022-11-20 16:22:23,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:23,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 16:22:23,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:23,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 16:22:23,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 16:22:23,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:23,109 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:23,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 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) [2022-11-20 16:22:23,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:23,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:23,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:27,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:27,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 16:22:27,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 16:22:27,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:27,911 INFO L85 PathProgramCache]: Analyzing trace with hash -128739701, now seen corresponding path program 1 times [2022-11-20 16:22:27,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:27,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940106797] [2022-11-20 16:22:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:28,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:28,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:28,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940106797] [2022-11-20 16:22:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940106797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:28,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:28,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:22:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655932155] [2022-11-20 16:22:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:22:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:22:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:22:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:28,166 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:28,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2022-11-20 16:22:28,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:28,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:28,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:28,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:29,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 16:22:29,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 16:22:29,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1169725076, now seen corresponding path program 1 times [2022-11-20 16:22:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:29,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864361954] [2022-11-20 16:22:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:29,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:30,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:30,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864361954] [2022-11-20 16:22:30,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864361954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:30,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:30,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:22:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659005298] [2022-11-20 16:22:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:30,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:22:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:30,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:22:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:22:30,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:30,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:30,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2022-11-20 16:22:30,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:30,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:30,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:30,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:30,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:32,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 16 remaining) [2022-11-20 16:22:32,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 16 remaining) [2022-11-20 16:22:32,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-20 16:22:32,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-20 16:22:32,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-20 16:22:32,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-20 16:22:32,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-20 16:22:32,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-20 16:22:32,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-20 16:22:32,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-20 16:22:32,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 16 remaining) [2022-11-20 16:22:32,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 16 remaining) [2022-11-20 16:22:32,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 16 remaining) [2022-11-20 16:22:32,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 16 remaining) [2022-11-20 16:22:32,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 16 remaining) [2022-11-20 16:22:32,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 16 remaining) [2022-11-20 16:22:32,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 16:22:32,566 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 16:22:32,567 INFO L307 ceAbstractionStarter]: Result for error location P2Thread1of1ForFork3 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/5) [2022-11-20 16:22:32,581 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:32,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:22:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:32,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:22:32,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-11-20 16:22:32,611 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:22:32,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2022-11-20 16:22:32,612 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@28c82887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:32,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 16:22:34,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-20 16:22:34,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:34,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2023295581, now seen corresponding path program 1 times [2022-11-20 16:22:34,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:34,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7784074] [2022-11-20 16:22:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:34,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:34,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7784074] [2022-11-20 16:22:34,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7784074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:34,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:34,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:22:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160239231] [2022-11-20 16:22:34,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:34,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:34,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:34,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:34,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:34,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:34,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-11-20 16:22:34,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 16:22:35,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-20 16:22:35,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:35,999 INFO L85 PathProgramCache]: Analyzing trace with hash 226344223, now seen corresponding path program 1 times [2022-11-20 16:22:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:36,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696291240] [2022-11-20 16:22:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:36,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:36,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696291240] [2022-11-20 16:22:36,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696291240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:36,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:36,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 16:22:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417464682] [2022-11-20 16:22:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:36,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 16:22:36,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 16:22:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 16:22:36,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:36,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:36,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-11-20 16:22:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:38,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 16:22:38,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-20 16:22:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1261581824, now seen corresponding path program 1 times [2022-11-20 16:22:38,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:38,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042781422] [2022-11-20 16:22:38,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:38,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:39,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:39,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042781422] [2022-11-20 16:22:39,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042781422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:39,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:39,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 16:22:39,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857206712] [2022-11-20 16:22:39,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:39,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 16:22:39,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:39,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 16:22:39,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 16:22:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:39,685 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:39,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 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) [2022-11-20 16:22:39,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:39,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:39,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 16:22:42,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-20 16:22:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash -433680999, now seen corresponding path program 1 times [2022-11-20 16:22:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529330985] [2022-11-20 16:22:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:42,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:42,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529330985] [2022-11-20 16:22:42,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529330985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:42,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:42,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:22:42,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408390661] [2022-11-20 16:22:42,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:42,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:22:42,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:42,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:22:42,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:22:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:42,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2022-11-20 16:22:42,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:42,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:42,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:42,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:43,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 16:22:43,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-20 16:22:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:43,494 INFO L85 PathProgramCache]: Analyzing trace with hash -630194503, now seen corresponding path program 1 times [2022-11-20 16:22:43,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:43,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299993490] [2022-11-20 16:22:43,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:43,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:43,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:43,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299993490] [2022-11-20 16:22:43,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299993490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:43,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:43,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:22:43,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619584805] [2022-11-20 16:22:43,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:43,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 16:22:43,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 16:22:43,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-20 16:22:43,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:43,823 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:43,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2022-11-20 16:22:43,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:43,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:43,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:43,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:43,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:45,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:22:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:22:45,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-20 16:22:45,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-20 16:22:45,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-20 16:22:45,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-11-20 16:22:45,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 6 remaining) [2022-11-20 16:22:45,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 6 remaining) [2022-11-20 16:22:45,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 16:22:45,554 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 16:22:45,555 INFO L307 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (2/5) [2022-11-20 16:22:45,561 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:45,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:22:45,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:45,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:22:45,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07141d-4193-49cd-bbaa-6996260a42d3/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-20 16:22:45,581 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:22:45,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:22:45,585 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=PARTIAL_ORDER_FA, 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;@28c82887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:45,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-20 16:22:47,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1373776105, now seen corresponding path program 1 times [2022-11-20 16:22:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:47,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381425173] [2022-11-20 16:22:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381425173] [2022-11-20 16:22:47,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381425173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:47,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:47,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:22:47,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016554366] [2022-11-20 16:22:47,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:47,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:22:47,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:47,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:22:47,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:22:47,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:47,391 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:47,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 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) [2022-11-20 16:22:47,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:47,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 16:22:47,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:47,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:47,422 INFO L85 PathProgramCache]: Analyzing trace with hash 44314693, now seen corresponding path program 1 times [2022-11-20 16:22:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:47,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305610487] [2022-11-20 16:22:47,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:47,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:47,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:47,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305610487] [2022-11-20 16:22:47,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305610487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:47,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:47,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 16:22:47,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834935500] [2022-11-20 16:22:47,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:47,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 16:22:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:47,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 16:22:47,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 16:22:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:47,652 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:47,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2022-11-20 16:22:47,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:47,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:49,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 16:22:49,121 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:49,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1966233955, now seen corresponding path program 1 times [2022-11-20 16:22:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:49,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743948444] [2022-11-20 16:22:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:49,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743948444] [2022-11-20 16:22:49,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743948444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:49,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:49,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:22:49,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922704845] [2022-11-20 16:22:49,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:49,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:49,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:49,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:49,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:49,201 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:49,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2022-11-20 16:22:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:51,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 16:22:51,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:51,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1749157505, now seen corresponding path program 1 times [2022-11-20 16:22:51,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:51,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305151705] [2022-11-20 16:22:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:51,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:51,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:51,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305151705] [2022-11-20 16:22:51,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305151705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:51,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:51,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 16:22:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273059394] [2022-11-20 16:22:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:51,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 16:22:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 16:22:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 16:22:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:51,720 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:51,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2022-11-20 16:22:51,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:51,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:51,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:51,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:53,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 16:22:53,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:53,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:53,599 INFO L85 PathProgramCache]: Analyzing trace with hash -959598856, now seen corresponding path program 1 times [2022-11-20 16:22:53,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:53,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047419915] [2022-11-20 16:22:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:53,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:53,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:53,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047419915] [2022-11-20 16:22:53,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047419915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:53,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:53,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:22:53,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787364705] [2022-11-20 16:22:53,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:53,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:53,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:53,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:53,786 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:53,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 51.5) internal successors, (103), 3 states have internal predecessors, (103), 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) [2022-11-20 16:22:53,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:53,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:53,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:53,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:55,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:55,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 16:22:55,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:55,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1191949071, now seen corresponding path program 1 times [2022-11-20 16:22:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:55,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299915835] [2022-11-20 16:22:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:55,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:55,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:55,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299915835] [2022-11-20 16:22:55,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299915835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:55,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:55,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 16:22:55,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433856515] [2022-11-20 16:22:55,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:55,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 16:22:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 16:22:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 16:22:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:55,435 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:55,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 16:22:56,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 16:22:56,058 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:22:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1150280219, now seen corresponding path program 1 times [2022-11-20 16:22:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:56,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998755554] [2022-11-20 16:22:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:59,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998755554] [2022-11-20 16:22:59,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998755554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:59,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:59,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 16:22:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372446532] [2022-11-20 16:22:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:59,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 16:22:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 16:22:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-11-20 16:22:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:59,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:59,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 20 states have internal predecessors, (119), 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) [2022-11-20 16:22:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-20 16:22:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:23:21,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 16:23:21,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:23:21,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1842855673, now seen corresponding path program 1 times [2022-11-20 16:23:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:21,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452739699] [2022-11-20 16:23:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:21,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:22,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:22,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452739699] [2022-11-20 16:23:22,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452739699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:22,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:22,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:23:22,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946320919] [2022-11-20 16:23:22,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 16:23:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:22,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 16:23:22,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 16:23:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:22,026 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 4 states have internal predecessors, (113), 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) [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:22,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:22,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:23:22,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:23:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:34,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 16:23:34,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:23:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1842855672, now seen corresponding path program 1 times [2022-11-20 16:23:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:34,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804187711] [2022-11-20 16:23:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:35,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:35,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804187711] [2022-11-20 16:23:35,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804187711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:35,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:35,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 16:23:35,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473480748] [2022-11-20 16:23:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:35,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:23:35,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:23:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:23:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:35,180 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:35,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.25) internal successors, (113), 5 states have internal predecessors, (113), 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) [2022-11-20 16:23:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:35,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:35,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:23:35,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:23:35,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:23:35,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:16,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:24:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:24:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 16:24:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:24:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:24:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:24:16,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 16:24:16,421 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-20 16:24:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2103075815, now seen corresponding path program 1 times [2022-11-20 16:24:16,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:16,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398866929] [2022-11-20 16:24:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:17,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:17,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398866929] [2022-11-20 16:24:17,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398866929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:24:17,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:24:17,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 16:24:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474681667] [2022-11-20 16:24:17,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:24:17,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 16:24:17,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:17,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 16:24:17,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 16:24:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:17,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:17,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 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) [2022-11-20 16:24:17,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-20 16:24:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:24:17,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-20 16:24:17,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:24:17,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.