./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w --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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- 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-2329fc7 [2022-12-13 09:07:02,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:07:02,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:07:02,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:07:02,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:07:02,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:07:02,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:07:02,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:07:02,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:07:02,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:07:02,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:07:02,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:07:02,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:07:02,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:07:02,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:07:02,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:07:02,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:07:02,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:07:02,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:07:02,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:07:02,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:07:02,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:07:02,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:07:02,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:07:02,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:07:02,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:07:02,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:07:02,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:07:02,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:07:02,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:07:02,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:07:02,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:07:02,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:07:02,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:07:02,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:07:02,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:07:02,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:07:02,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:07:02,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:07:02,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:07:02,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:07:02,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-12-13 09:07:02,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:07:02,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:07:02,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:07:02,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:07:02,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:07:02,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:07:02,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:07:02,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:07:02,396 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:07:02,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:07:02,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:07:02,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 09:07:02,397 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 09:07:02,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:07:02,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 09:07:02,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:07:02,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:07:02,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:07:02,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:07:02,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:07:02,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:07:02,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:07:02,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:07:02,400 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:07:02,401 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:07:02,401 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-12-13 09:07:02,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:07:02,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:07:02,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:07:02,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:07:02,630 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:07:02,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/queue_longer.i [2022-12-13 09:07:05,242 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:07:05,451 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:07:05,451 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i [2022-12-13 09:07:05,464 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/data/935d92d4e/be10463512c84dc19879f830ec04fed5/FLAG8b95f7b44 [2022-12-13 09:07:05,474 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/data/935d92d4e/be10463512c84dc19879f830ec04fed5 [2022-12-13 09:07:05,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:07:05,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:07:05,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:07:05,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:07:05,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:07:05,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:05,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538c01b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05, skipping insertion in model container [2022-12-13 09:07:05,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:05,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:07:05,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:07:05,886 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-12-13 09:07:05,890 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-12-13 09:07:05,892 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-12-13 09:07:05,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:07:05,904 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:07:05,935 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-12-13 09:07:05,936 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-12-13 09:07:05,938 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_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-12-13 09:07:05,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:07:05,998 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:07:05,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05 WrapperNode [2022-12-13 09:07:05,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:07:06,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:07:06,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:07:06,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:07:06,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,052 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 241 [2022-12-13 09:07:06,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:07:06,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:07:06,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:07:06,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:07:06,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:07:06,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:07:06,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:07:06,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:07:06,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (1/1) ... [2022-12-13 09:07:06,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:07:06,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:07:06,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:07:06,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 09:07:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 09:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 09:07:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 09:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 09:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 09:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:07:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:07:06,160 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:07:06,291 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:07:06,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:07:06,713 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:07:06,721 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:07:06,722 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 09:07:06,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:06 BoogieIcfgContainer [2022-12-13 09:07:06,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:07:06,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:07:06,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:07:06,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:07:06,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:07:05" (1/3) ... [2022-12-13 09:07:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dd4bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:06, skipping insertion in model container [2022-12-13 09:07:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:05" (2/3) ... [2022-12-13 09:07:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dd4bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:06, skipping insertion in model container [2022-12-13 09:07:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:06" (3/3) ... [2022-12-13 09:07:06,731 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-12-13 09:07:06,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:07:06,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-12-13 09:07:06,746 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:07:06,862 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 09:07:06,900 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:07:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:07:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:07:06,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:07:06,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:07:06,943 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:07:06,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2022-12-13 09:07:06,957 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;@1dcf9e95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:07:06,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-12-13 09:07:07,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:07:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:07:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1079208125, now seen corresponding path program 1 times [2022-12-13 09:07:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:07:07,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871561308] [2022-12-13 09:07:07,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:07:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:07:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:07:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:07:07,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:07:07,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871561308] [2022-12-13 09:07:07,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871561308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:07:07,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:07:07,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:07:07,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396447395] [2022-12-13 09:07:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:07:07,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 09:07:07,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:07:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 09:07:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 09:07:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:07:07,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 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) [2022-12-13 09:07:07,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:07:07,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:07:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:07:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash -338156202, now seen corresponding path program 1 times [2022-12-13 09:07:07,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:07:07,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311176664] [2022-12-13 09:07:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:07:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:07:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:07:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:07:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:07:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311176664] [2022-12-13 09:07:07,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311176664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:07:07,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:07:07,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 09:07:07,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964057465] [2022-12-13 09:07:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:07:07,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:07:07,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:07:07,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:07:07,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:07:07,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,807 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:07:07,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2022-12-13 09:07:07,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:07:07,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:07:07,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:07:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:07:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2081366619, now seen corresponding path program 1 times [2022-12-13 09:07:07,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:07:07,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527841179] [2022-12-13 09:07:07,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:07:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:07:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:07:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:07:11,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:07:11,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527841179] [2022-12-13 09:07:11,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527841179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:07:11,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:07:11,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-13 09:07:11,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838205076] [2022-12-13 09:07:11,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:07:11,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 09:07:11,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:07:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 09:07:11,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-12-13 09:07:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:11,378 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:07:11,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 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) [2022-12-13 09:07:11,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:11,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:07:11,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:07:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:07:13,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:07:13,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:07:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:07:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash 285904990, now seen corresponding path program 1 times [2022-12-13 09:07:13,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:07:13,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841390940] [2022-12-13 09:07:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:07:13,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:07:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:07:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:07:30,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:07:30,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841390940] [2022-12-13 09:07:30,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841390940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:07:30,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:07:30,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-12-13 09:07:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707153107] [2022-12-13 09:07:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:07:30,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 09:07:30,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:07:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 09:07:30,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-12-13 09:07:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:30,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:07:30,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 29 states have internal predecessors, (117), 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) [2022-12-13 09:07:30,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:07:30,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:07:30,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:07:30,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:08:03,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 665152217, now seen corresponding path program 1 times [2022-12-13 09:08:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:03,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649491028] [2022-12-13 09:08:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:03,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649491028] [2022-12-13 09:08:03,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649491028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:03,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:03,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 09:08:03,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342509205] [2022-12-13 09:08:03,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:03,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:08:03,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:03,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:08:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:08:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:03,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:03,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2022-12-13 09:08:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 09:08:11,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:11,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash 137929136, now seen corresponding path program 1 times [2022-12-13 09:08:11,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:11,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063272216] [2022-12-13 09:08:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:11,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 09:08:11,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:11,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063272216] [2022-12-13 09:08:11,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063272216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:11,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:11,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:08:11,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416789174] [2022-12-13 09:08:11,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:11,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:11,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:11,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:08:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:11,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 78.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-12-13 09:08:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:11,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:11,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:11,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 09:08:11,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 137929137, now seen corresponding path program 1 times [2022-12-13 09:08:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:11,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472560264] [2022-12-13 09:08:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:11,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:11,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472560264] [2022-12-13 09:08:11,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472560264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:11,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:11,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:08:11,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593893129] [2022-12-13 09:08:11,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:11,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:11,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:08:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:11,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:12,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 09:08:12,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash 351456292, now seen corresponding path program 1 times [2022-12-13 09:08:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:12,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694561439] [2022-12-13 09:08:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-12-13 09:08:12,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:12,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694561439] [2022-12-13 09:08:12,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694561439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:12,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:12,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:08:12,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517923585] [2022-12-13 09:08:12,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:12,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:12,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:12,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:08:12,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:12,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:12,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2022-12-13 09:08:12,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:12,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 09:08:13,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash 39412035, now seen corresponding path program 1 times [2022-12-13 09:08:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473087558] [2022-12-13 09:08:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 09:08:13,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:13,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473087558] [2022-12-13 09:08:13,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473087558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:13,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:13,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:08:13,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038538513] [2022-12-13 09:08:13,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:13,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:13,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:08:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:13,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 101.0) internal successors, (202), 3 states have internal predecessors, (202), 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) [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:13,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 09:08:13,235 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash 39412036, now seen corresponding path program 1 times [2022-12-13 09:08:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:13,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612100726] [2022-12-13 09:08:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 09:08:15,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:15,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612100726] [2022-12-13 09:08:15,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612100726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:15,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:08:15,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-13 09:08:15,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479692169] [2022-12-13 09:08:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:15,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 09:08:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 09:08:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-12-13 09:08:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:15,319 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:15,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.333333333333334) internal successors, (225), 27 states have internal predecessors, (225), 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) [2022-12-13 09:08:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:15,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:17,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 09:08:17,127 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1750754133, now seen corresponding path program 1 times [2022-12-13 09:08:17,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:17,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522598163] [2022-12-13 09:08:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:17,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522598163] [2022-12-13 09:08:20,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522598163] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:08:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149838337] [2022-12-13 09:08:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:20,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:08:20,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:08:20,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:08:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:20,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 09:08:20,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:08:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:08:21,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:08:21,025 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 09:08:21,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 09:08:21,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:08:21,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:08:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:22,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:08:27,256 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:08:27,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-12-13 09:08:27,273 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:08:27,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-12-13 09:08:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:27,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149838337] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:08:27,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:08:27,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 7, 7] total 47 [2022-12-13 09:08:27,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64519227] [2022-12-13 09:08:27,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:08:27,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 09:08:27,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:27,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 09:08:27,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 09:08:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:27,394 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:27,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 14.425531914893616) internal successors, (678), 47 states have internal predecessors, (678), 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) [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:27,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:32,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:08:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 09:08:32,924 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1771934710, now seen corresponding path program 1 times [2022-12-13 09:08:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:32,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82985233] [2022-12-13 09:08:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:32,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 09:08:36,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:36,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82985233] [2022-12-13 09:08:36,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82985233] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:08:36,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315364418] [2022-12-13 09:08:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:36,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:36,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:08:36,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:08:36,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:08:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:36,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 09:08:36,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:08:36,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:08:36,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:08:36,690 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 09:08:36,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 09:08:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:08:36,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:08:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:38,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:08:39,139 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:08:39,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-12-13 09:08:39,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:08:39,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-12-13 09:08:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:08:39,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315364418] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:08:39,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:08:39,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 11, 11] total 56 [2022-12-13 09:08:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032441436] [2022-12-13 09:08:39,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:08:39,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-13 09:08:39,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-13 09:08:39,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2789, Unknown=0, NotChecked=0, Total=3080 [2022-12-13 09:08:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:39,240 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:39,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 12.946428571428571) internal successors, (725), 56 states have internal predecessors, (725), 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) [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:39,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:46,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:46,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:46,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 09:08:46,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 09:08:46,302 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:46,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:46,303 INFO L85 PathProgramCache]: Analyzing trace with hash 183879498, now seen corresponding path program 1 times [2022-12-13 09:08:46,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:46,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642710063] [2022-12-13 09:08:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:46,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 09:08:46,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:46,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642710063] [2022-12-13 09:08:46,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642710063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:08:46,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200920503] [2022-12-13 09:08:46,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:46,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:46,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:08:46,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:08:46,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 09:08:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:46,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 09:08:46,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:08:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-12-13 09:08:46,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:08:46,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200920503] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:46,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:08:46,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 09:08:46,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174612350] [2022-12-13 09:08:46,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:46,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:46,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:46,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:46,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 09:08:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 114.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:46,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:46,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:46,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 09:08:47,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 09:08:47,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1628968164, now seen corresponding path program 1 times [2022-12-13 09:08:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:47,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339420832] [2022-12-13 09:08:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 09:08:47,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:47,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339420832] [2022-12-13 09:08:47,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339420832] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:08:47,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548365672] [2022-12-13 09:08:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:47,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:08:47,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:08:47,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 09:08:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:47,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 09:08:47,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:08:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-12-13 09:08:47,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:08:47,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548365672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:08:47,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:08:47,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 09:08:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112677983] [2022-12-13 09:08:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:08:47,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:08:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:47,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:08:47,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 09:08:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:47,578 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:47,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 109.5) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:47,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:47,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:47,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:47,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 09:08:47,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 09:08:47,918 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:47,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash 131303843, now seen corresponding path program 1 times [2022-12-13 09:08:47,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:47,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145829240] [2022-12-13 09:08:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:47,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 09:08:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:08:48,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145829240] [2022-12-13 09:08:48,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145829240] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:08:48,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604590908] [2022-12-13 09:08:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:48,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:48,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:08:48,433 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:08:48,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 09:08:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:08:48,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 09:08:48,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:08:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 09:08:49,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:08:50,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:08:50,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-12-13 09:08:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 09:08:50,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604590908] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:08:50,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:08:50,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 22 [2022-12-13 09:08:50,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752009772] [2022-12-13 09:08:50,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:08:50,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 09:08:50,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:08:50,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 09:08:50,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-12-13 09:08:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:50,292 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:08:50,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 28.863636363636363) internal successors, (635), 23 states have internal predecessors, (635), 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) [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:08:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:08:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:08:50,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 09:08:50,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:08:50,960 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:08:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:08:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash -384220510, now seen corresponding path program 1 times [2022-12-13 09:08:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:08:50,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107999797] [2022-12-13 09:08:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:08:50,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:08:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:09:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 57 proven. 137 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-13 09:09:00,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:09:00,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107999797] [2022-12-13 09:09:00,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107999797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:09:00,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308708522] [2022-12-13 09:09:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:09:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:09:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:09:00,275 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:09:00,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 09:09:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:09:00,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 138 conjunts are in the unsatisfiable core [2022-12-13 09:09:00,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:09:00,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:00,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:09:00,669 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 09:09:00,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 09:09:00,683 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 09:09:00,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 09:09:00,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:09:02,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-12-13 09:09:02,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:02,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-12-13 09:09:02,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 09:09:02,978 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-12-13 09:09:02,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 35 [2022-12-13 09:09:03,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2022-12-13 09:09:03,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 27 [2022-12-13 09:09:04,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:04,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-12-13 09:09:05,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-12-13 09:09:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:06,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-12-13 09:09:06,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-12-13 09:09:07,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 09:09:07,915 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-12-13 09:09:07,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 49 [2022-12-13 09:09:08,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 44 [2022-12-13 09:09:08,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 41 [2022-12-13 09:09:09,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:09,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2022-12-13 09:09:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:09:10,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 47 [2022-12-13 09:09:10,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 47 [2022-12-13 09:09:11,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2022-12-13 09:09:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 25 proven. 169 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-13 09:09:11,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:09:12,989 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604) (+ |c_t1Thread1of1ForFork1_enqueue_#t~mem40#1| 1)))) (.cse1 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1469 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1) 4)))) (forall ((v_ArrVal_1469 (Array Int Int))) (<= (+ |c_~#queue~0.offset| 4 (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1) 4)) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2022-12-13 09:09:12,999 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1))))) (.cse1 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1469 (Array Int Int))) (<= (+ |c_~#queue~0.offset| (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1) 4) 4) (select |c_#length| |c_~#queue~0.base|))) (forall ((v_ArrVal_1469 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1) 4)))))) is different from false [2022-12-13 09:09:58,755 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:09:59,092 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 1608 |c_~#queue~0.offset|)) (.cse7 (+ 1600 |c_~#queue~0.offset|)) (.cse5 (select |c_#length| |c_~#queue~0.base|)) (.cse3 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1458 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse6 (select .cse0 |c_~#queue~0.base|))) (let ((.cse8 (* (select .cse6 .cse3) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse1 (store (store (store .cse6 .cse2 v_ArrVal_1459) .cse7 v_ArrVal_1461) (+ .cse8 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse4 (select .cse1 .cse3))) (or (<= (+ (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (store (store .cse1 .cse2 v_ArrVal_1466) .cse3 (+ .cse4 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset| 4) .cse5) (= 400 .cse4))))) (not (<= (+ .cse8 |c_~#queue~0.offset| 4) .cse5))))))) (forall ((v_ArrVal_1458 (Array Int Int))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse12 (select .cse10 |c_~#queue~0.base|))) (let ((.cse13 (* (select .cse12 .cse3) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse11 (store (store (store .cse12 .cse2 v_ArrVal_1459) .cse7 v_ArrVal_1461) (+ .cse13 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse9 (select .cse11 .cse3))) (or (= 400 .cse9) (<= 0 (+ (* 4 (select (select (store (store .cse10 |c_~#queue~0.base| (store (store .cse11 .cse2 v_ArrVal_1466) .cse3 (+ .cse9 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset|)))))) (not (<= (+ .cse13 |c_~#queue~0.offset| 4) .cse5))))))))) is different from false [2022-12-13 09:10:01,266 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#length| |c_~#queue~0.base|)) (.cse5 (+ 1608 |c_~#queue~0.offset|)) (.cse8 (+ 1600 |c_~#queue~0.offset|)) (.cse6 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse7 (select .cse3 |c_~#queue~0.base|))) (let ((.cse0 (* (select .cse7 .cse6) 4))) (or (not (<= (+ |c_~#queue~0.offset| .cse0 4) .cse1)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse4 (store (store (store .cse7 .cse5 v_ArrVal_1459) .cse8 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse0) v_ArrVal_1464))) (let ((.cse2 (select .cse4 .cse6))) (or (= 400 .cse2) (<= 0 (+ (* (select (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 .cse5 v_ArrVal_1466) .cse6 (+ .cse2 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset|))))))))))) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse11 (store (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse13 (select .cse11 |c_~#queue~0.base|))) (let ((.cse9 (* (select .cse13 .cse6) 4))) (or (not (<= (+ |c_~#queue~0.offset| .cse9 4) .cse1)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse12 (store (store (store .cse13 .cse5 v_ArrVal_1459) .cse8 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse9) v_ArrVal_1464))) (let ((.cse10 (select .cse12 .cse6))) (or (= 400 .cse10) (<= (+ (* (select (select (store (store .cse11 |c_~#queue~0.base| (store (store .cse12 .cse5 v_ArrVal_1466) .cse6 (+ .cse10 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset| 4) .cse1)))))))))))) is different from false [2022-12-13 09:10:02,023 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#length| |c_~#queue~0.base|)) (.cse2 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ 1600 |c_~#queue~0.offset|)) (.cse3 (+ |c_~#queue~0.offset| 1604)) (.cse9 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604) (+ |c_t1Thread1of1ForFork1_enqueue_#t~mem40#1| 1))))) (and (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse0 (store (store .cse9 |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse5 (select .cse0 |c_~#queue~0.base|))) (let ((.cse7 (* 4 (select .cse5 .cse3)))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse1 (store (store (store .cse5 .cse2 v_ArrVal_1459) .cse6 v_ArrVal_1461) (+ .cse7 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse4 (select .cse1 .cse3))) (or (<= 0 (+ (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (store (store .cse1 .cse2 v_ArrVal_1466) .cse3 (+ .cse4 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset|)) (= 400 .cse4))))) (not (<= (+ .cse7 |c_~#queue~0.offset| 4) .cse8))))))) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse12 (store (store .cse9 |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse14 (select .cse12 |c_~#queue~0.base|))) (let ((.cse10 (* 4 (select .cse14 .cse3)))) (or (not (<= (+ .cse10 |c_~#queue~0.offset| 4) .cse8)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse13 (store (store (store .cse14 .cse2 v_ArrVal_1459) .cse6 v_ArrVal_1461) (+ .cse10 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse11 (select .cse13 .cse3))) (or (= 400 .cse11) (<= (+ (* 4 (select (select (store (store .cse12 |c_~#queue~0.base| (store (store .cse13 .cse2 v_ArrVal_1466) .cse3 (+ .cse11 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset| 4) .cse8)))))))))))) is different from false [2022-12-13 09:10:27,792 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:10:29,879 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#length| |c_~#queue~0.base|)) (.cse9 (+ 1600 |c_~#queue~0.offset|)) (.cse5 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse10 (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse12 (select .cse10 |c_~#queue~0.base|))) (let ((.cse13 (+ (* (select .cse12 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse11 (store .cse12 .cse13 v_ArrVal_1451))) (let ((.cse0 (select .cse11 .cse6))) (or (= 400 .cse0) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse3 (store (store (store .cse10 |c_~#queue~0.base| (store (store .cse11 .cse5 v_ArrVal_1453) .cse6 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse8 (select .cse3 |c_~#queue~0.base|))) (let ((.cse1 (* 4 (select .cse8 .cse6)))) (or (not (<= (+ .cse1 |c_~#queue~0.offset| 4) .cse2)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse4 (store (store (store .cse8 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ .cse1 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse7 (select .cse4 .cse6))) (or (<= (+ |c_~#queue~0.offset| (* 4 (select (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 .cse5 v_ArrVal_1466) .cse6 (+ .cse7 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)) 4) .cse2) (= 400 .cse7)))))))))))))) (not (<= 0 .cse13))))))) (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse20 (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse22 (select .cse20 |c_~#queue~0.base|))) (let ((.cse23 (+ (* (select .cse22 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse21 (store .cse22 .cse23 v_ArrVal_1451))) (let ((.cse14 (select .cse21 .cse6))) (or (= 400 .cse14) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse16 (store (store (store .cse20 |c_~#queue~0.base| (store (store .cse21 .cse5 v_ArrVal_1453) .cse6 (+ .cse14 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse19 (select .cse16 |c_~#queue~0.base|))) (let ((.cse15 (* 4 (select .cse19 .cse6)))) (or (not (<= (+ .cse15 |c_~#queue~0.offset| 4) .cse2)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse17 (store (store (store .cse19 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ .cse15 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse18 (select .cse17 .cse6))) (or (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store (store .cse16 |c_~#queue~0.base| (store (store .cse17 .cse5 v_ArrVal_1466) .cse6 (+ .cse18 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)))) (= 400 .cse18)))))))))))))) (not (<= 0 .cse23))))))))) is different from false [2022-12-13 09:10:30,767 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 (+ 1600 |c_~#queue~0.offset|)) (.cse2 (select |c_#length| |c_~#queue~0.base|)) (.cse5 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ |c_~#queue~0.offset| 1604)) (.cse14 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604) (+ |c_t1Thread1of1ForFork1_enqueue_#t~post41#1| 1))))) (and (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse10 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse12 (select .cse10 |c_~#queue~0.base|))) (let ((.cse13 (+ (* (select .cse12 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse11 (store .cse12 .cse13 v_ArrVal_1451))) (let ((.cse0 (select .cse11 .cse6))) (or (= .cse0 400) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse3 (store (store (store .cse10 |c_~#queue~0.base| (store (store .cse11 .cse5 v_ArrVal_1453) .cse6 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse8 (select .cse3 |c_~#queue~0.base|))) (let ((.cse1 (* (select .cse8 .cse6) 4))) (or (not (<= (+ |c_~#queue~0.offset| 4 .cse1) .cse2)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse4 (store (store (store .cse8 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse1) v_ArrVal_1464))) (let ((.cse7 (select .cse4 .cse6))) (or (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 .cse5 v_ArrVal_1466) .cse6 (+ .cse7 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4))) (= .cse7 400)))))))))))))) (not (<= 0 .cse13))))))) (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse21 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse23 (select .cse21 |c_~#queue~0.base|))) (let ((.cse24 (+ (* (select .cse23 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse22 (store .cse23 .cse24 v_ArrVal_1451))) (let ((.cse15 (select .cse22 .cse6))) (or (= .cse15 400) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse16 (store (store (store .cse21 |c_~#queue~0.base| (store (store .cse22 .cse5 v_ArrVal_1453) .cse6 (+ .cse15 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse19 (select .cse16 |c_~#queue~0.base|))) (let ((.cse20 (* (select .cse19 .cse6) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse17 (store (store (store .cse19 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse20) v_ArrVal_1464))) (let ((.cse18 (select .cse17 .cse6))) (or (<= (+ |c_~#queue~0.offset| (* (select (select (store (store .cse16 |c_~#queue~0.base| (store (store .cse17 .cse5 v_ArrVal_1466) .cse6 (+ .cse18 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) 4) .cse2) (= .cse18 400))))) (not (<= (+ |c_~#queue~0.offset| 4 .cse20) .cse2))))))))))) (not (<= 0 .cse24))))))))) is different from false [2022-12-13 09:10:31,771 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#length| |c_~#queue~0.base|)) (.cse9 (+ 1600 |c_~#queue~0.offset|)) (.cse5 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ |c_~#queue~0.offset| 1604)) (.cse14 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (let ((.cse25 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse26 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604))) (store .cse25 .cse26 (+ (select .cse25 .cse26) 1)))))) (and (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse11 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse13 (select .cse11 |c_~#queue~0.base|))) (let ((.cse0 (+ (* 4 (select .cse13 .cse6)) |c_~#queue~0.offset|))) (or (not (<= 0 .cse0)) (forall ((v_ArrVal_1451 Int)) (let ((.cse12 (store .cse13 .cse0 v_ArrVal_1451))) (let ((.cse1 (select .cse12 .cse6))) (or (= 400 .cse1) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse3 (store (store (store .cse11 |c_~#queue~0.base| (store (store .cse12 .cse5 v_ArrVal_1453) .cse6 (+ .cse1 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse8 (select .cse3 |c_~#queue~0.base|))) (let ((.cse10 (* 4 (select .cse8 .cse6)))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse4 (store (store (store .cse8 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ .cse10 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse2 (select .cse4 .cse6))) (or (= 400 .cse2) (<= (+ |c_~#queue~0.offset| (* (select (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 .cse5 v_ArrVal_1466) .cse6 (+ .cse2 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) 4) .cse7))))) (not (<= (+ .cse10 |c_~#queue~0.offset| 4) .cse7)))))))))))))))) (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse22 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse24 (select .cse22 |c_~#queue~0.base|))) (let ((.cse15 (+ (* 4 (select .cse24 .cse6)) |c_~#queue~0.offset|))) (or (not (<= 0 .cse15)) (forall ((v_ArrVal_1451 Int)) (let ((.cse23 (store .cse24 .cse15 v_ArrVal_1451))) (let ((.cse16 (select .cse23 .cse6))) (or (= 400 .cse16) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse18 (store (store (store .cse22 |c_~#queue~0.base| (store (store .cse23 .cse5 v_ArrVal_1453) .cse6 (+ .cse16 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse21 (select .cse18 |c_~#queue~0.base|))) (let ((.cse17 (* 4 (select .cse21 .cse6)))) (or (not (<= (+ .cse17 |c_~#queue~0.offset| 4) .cse7)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse19 (store (store (store .cse21 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ .cse17 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse20 (select .cse19 .cse6))) (or (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store .cse18 |c_~#queue~0.base| (store (store .cse19 .cse5 v_ArrVal_1466) .cse6 (+ .cse20 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4))) (= 400 .cse20))))))))))))))))))))) is different from false [2022-12-13 09:10:32,965 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:10:32,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 3042 treesize of output 1500 [2022-12-13 09:10:33,011 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:10:33,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3957 treesize of output 3867 [2022-12-13 09:10:33,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3900 treesize of output 3832 [2022-12-13 09:10:33,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4042 treesize of output 3858 [2022-12-13 09:10:33,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3806 treesize of output 3774 [2022-12-13 09:10:33,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3834 treesize of output 3722 [2022-12-13 09:10:33,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3752 treesize of output 3696 [2022-12-13 09:10:33,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3696 treesize of output 3632 [2022-12-13 09:10:33,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3684 treesize of output 3572 [2022-12-13 09:10:33,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3676 treesize of output 3452 [2022-12-13 09:10:33,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 09:10:38,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:10:38,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2228 treesize of output 1592 [2022-12-13 09:10:44,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:10:44,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 118 [2022-12-13 09:10:44,277 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:10:44,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 152 [2022-12-13 09:10:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 150 trivial. 109 not checked. [2022-12-13 09:10:44,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308708522] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:10:44,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:10:44,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 43, 49] total 134 [2022-12-13 09:10:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485899509] [2022-12-13 09:10:44,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:10:44,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-12-13 09:10:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:10:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-12-13 09:10:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=978, Invalid=14665, Unknown=139, NotChecked=2040, Total=17822 [2022-12-13 09:10:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:10:44,886 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:10:44,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 6.58955223880597) internal successors, (883), 134 states have internal predecessors, (883), 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) [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:10:44,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:10:44,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:10:44,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:10:44,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:10:44,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:06,457 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse42 (select |c_#memory_int| |c_ULTIMATE.start_empty_~q#1.base|)) (.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|)) (.cse24 (select |c_#memory_int| |c_~#queue~0.base|)) (.cse45 (select |c_#memory_int| |c_ULTIMATE.start_empty_#in~q#1.base|)) (.cse14 ((as const (Array Int Int)) 0))) (let ((.cse46 (@diff .cse45 .cse14)) (.cse23 (@diff .cse24 .cse14)) (.cse51 (@diff .cse0 .cse14)) (.cse41 (@diff .cse42 .cse14))) (let ((.cse49 (store .cse42 .cse41 0)) (.cse56 (store .cse0 .cse51 0)) (.cse48 (store .cse24 .cse23 0)) (.cse33 (store .cse45 .cse46 0)) (.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse5 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604))) (let ((.cse20 (select .cse7 .cse5)) (.cse32 (@diff .cse33 .cse14)) (.cse28 (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 1604)) (.cse47 (@diff .cse48 .cse14)) (.cse1 (@diff .cse56 .cse14)) (.cse50 (@diff .cse49 .cse14))) (let ((.cse39 (store .cse49 .cse50 0)) (.cse43 (store .cse56 .cse1 0)) (.cse15 (store .cse48 .cse47 0)) (.cse52 (* 4 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|)) (.cse54 (* (select .cse0 .cse28) 4)) (.cse18 (store .cse33 .cse32 0)) (.cse53 (select |c_#length| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse55 (* .cse20 4))) (let ((.cse8 (+ .cse55 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse12 (<= (+ .cse55 4 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) .cse53)) (.cse17 (= 400 .cse20)) (.cse19 (@diff .cse18 .cse14)) (.cse25 (<= (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| .cse54 4) (select |c_#length| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|))) (.cse21 (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| .cse54)) (.cse4 (+ 1608 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse13 (<= (+ .cse52 4 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) .cse53)) (.cse16 (@diff .cse15 .cse14)) (.cse6 (+ |c_~#queue~0.offset| 1604)) (.cse36 (+ .cse52 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse44 (@diff .cse43 .cse14)) (.cse11 (select |c_#length| |c_~#queue~0.base|)) (.cse40 (@diff .cse39 .cse14))) (and (or (= (select .cse0 .cse1) 0) (<= .cse1 1600) (<= 1608 .cse1)) (= (select |c_#length| |c_ULTIMATE.start_main_~#id1~0#1.base|) 4) (or (and (forall ((v_ArrVal_1464 Int)) (let ((.cse3 (store .cse7 .cse8 v_ArrVal_1464))) (let ((.cse2 (select .cse3 .cse5))) (or (= 400 .cse2) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse3 .cse4 v_ArrVal_1466) .cse5 (+ .cse2 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset|))))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse9 (store .cse7 .cse8 v_ArrVal_1464))) (let ((.cse10 (select .cse9 .cse5))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse9 .cse4 v_ArrVal_1466) .cse5 (+ .cse10 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset| 4) .cse11)) (= 400 .cse10)))))) (not .cse12)) (<= |c_~#stored_elements~0.base| 4) (= |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 0) .cse13 (= .cse14 (store .cse15 .cse16 0)) (= |c_~#queue~0.offset| |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) (not (= |c_~#queue~0.base| |c_~#stored_elements~0.base|)) (not (= |c_ULTIMATE.start_main_~#id1~0#1.base| |c_ULTIMATE.start_empty_~q#1.base|)) (<= 0 .cse8) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (not .cse17) (or (= .cse14 .cse18) (<= .cse19 1600) (<= 1608 .cse19)) (= |c_~#queue~0.offset| 0) (not (= |c_~#queue~0.base| |c_ULTIMATE.start_main_~#id1~0#1.base|)) .cse12 (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| |c_~#queue~0.offset|) (= |c_~#queue~0.offset| |c_ULTIMATE.start_init_#in~q#1.offset|) (not (= .cse20 401)) (<= 1612 (select |c_#length| |c_ULTIMATE.start_empty_#in~q#1.base|)) (= 5 |c_~#queue~0.base|) (<= 0 .cse21) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) (= (select |c_#valid| 5) 1) (= .cse20 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|) (= |c_ULTIMATE.start_init_~q#1.offset| |c_~#queue~0.offset|) (= (select .cse7 1600) 0) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#queue~0.base|)) (or (let ((.cse22 (+ .cse20 1))) (and (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse7 .cse4 v_ArrVal_1466) .cse5 .cse22)) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)) |c_~#queue~0.offset| 4) .cse11)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse7 .cse4 v_ArrVal_1466) .cse5 .cse22)) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)) |c_~#queue~0.offset|))))) .cse17) (or (<= 1608 .cse23) (= (select .cse24 .cse23) 0) (<= .cse23 1600)) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_ULTIMATE.start_empty_~q#1.base|)) (<= (select |c_#length| 5) 1612) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| 5)) .cse25 (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 0) (= .cse20 0) (= .cse14 (store .cse18 .cse19 0)) (or (not .cse25) (let ((.cse27 (+ 1608 |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset|))) (and (forall ((v_ArrVal_1464 Int)) (let ((.cse26 (store .cse0 .cse21 v_ArrVal_1464))) (let ((.cse29 (select .cse26 .cse28))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base| (store (store .cse26 .cse27 v_ArrVal_1466) .cse28 (+ .cse29 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) 4) .cse11)) (= 400 .cse29))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse30 (store .cse0 .cse21 v_ArrVal_1464))) (let ((.cse31 (select .cse30 .cse28))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base| (store (store .cse30 .cse27 v_ArrVal_1466) .cse28 (+ .cse31 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4)))) (= 400 .cse31)))))))) (or (<= .cse32 1600) (= .cse14 .cse33) (<= 1608 .cse32)) (or (and (forall ((v_ArrVal_1464 Int)) (let ((.cse35 (store .cse7 .cse36 v_ArrVal_1464))) (let ((.cse34 (select .cse35 .cse5))) (or (= 400 .cse34) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse35 .cse4 v_ArrVal_1466) .cse5 (+ .cse34 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset| 4) .cse11)))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse37 (store .cse7 .cse36 v_ArrVal_1464))) (let ((.cse38 (select .cse37 .cse5))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse37 .cse4 v_ArrVal_1466) .cse5 (+ .cse38 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset|))) (= 400 .cse38)))))) (not .cse13)) (= |c_ULTIMATE.start_empty_#in~q#1.offset| 0) (or (= .cse14 .cse15) (<= .cse16 1600) (<= 1608 .cse16)) (not (= (select .cse24 .cse6) 401)) (= (select .cse24 1600) 0) (= |c_~#queue~0.base| |c_ULTIMATE.start_empty_#in~q#1.base|) (= (select .cse0 1600) 0) (<= 0 .cse36) (= (select |c_#length| |c_ULTIMATE.start_main_~#id2~0#1.base|) 4) (= |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1| 0) (or (= .cse14 .cse39) (<= .cse40 1600) (<= 1608 .cse40)) (or (<= 1608 .cse41) (= .cse14 .cse42) (<= .cse41 1600)) (= .cse14 (store .cse43 .cse44 0)) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_~q#1.base|) (or (= .cse14 .cse45) (<= 1608 .cse46) (<= .cse46 1600)) (or (= (select .cse0 .cse44) 0) (<= 1608 .cse44) (<= .cse44 1600)) (= |c_ULTIMATE.start_empty_~q#1.offset| 0) (not (= 4 (select |c_#length| |c_ULTIMATE.start_empty_~q#1.base|))) (or (<= 1608 .cse47) (<= .cse47 1600) (= .cse14 .cse48)) (= |c_ULTIMATE.start_empty_#in~q#1.offset| |c_~#queue~0.offset|) (or (= .cse14 .cse49) (<= 1608 .cse50) (<= .cse50 1600)) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_#in~q#1.base|) (= |c_~#queue~0.base| |c_ULTIMATE.start_empty_~q#1.base|) (<= (+ |c_~#queue~0.offset| 1612) .cse11) (or (= .cse14 .cse0) (<= .cse51 1600) (<= 1608 .cse51)) (= .cse14 (store .cse39 .cse40 0))))))))) is different from true [2022-12-13 09:11:17,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 09:11:47,284 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 282 DAG size of output: 218 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:12:43,658 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 264 DAG size of output: 192 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:12:58,703 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 230 DAG size of output: 187 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:13:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:13:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:13:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:13:14,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-12-13 09:13:14,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 09:13:14,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 09:13:14,462 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:13:14,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:13:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 991537551, now seen corresponding path program 1 times [2022-12-13 09:13:14,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:13:14,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487548311] [2022-12-13 09:13:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:13:14,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:13:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:13:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 234 proven. 216 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-12-13 09:13:22,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:13:22,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487548311] [2022-12-13 09:13:22,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487548311] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:13:22,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622180808] [2022-12-13 09:13:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:13:22,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:13:22,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:13:22,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:13:22,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 09:13:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:13:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 09:13:23,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:13:23,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:13:23,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:13:23,282 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 09:13:23,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 09:13:23,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:13:23,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:13:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 606 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:13:27,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:13:30,601 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:13:30,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-12-13 09:13:30,618 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:13:30,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-12-13 09:13:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 606 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:13:30,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622180808] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:13:30,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:13:30,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 23, 23] total 88 [2022-12-13 09:13:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285096946] [2022-12-13 09:13:30,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:13:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-12-13 09:13:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:13:30,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-12-13 09:13:30,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=633, Invalid=7023, Unknown=0, NotChecked=0, Total=7656 [2022-12-13 09:13:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:13:30,789 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:13:30,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 14.431818181818182) internal successors, (1270), 88 states have internal predecessors, (1270), 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) [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-12-13 09:13:30,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:14:06,243 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 234 DAG size of output: 112 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:14:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:14:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:14:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-12-13 09:14:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-12-13 09:14:06,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 09:14:06,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 09:14:06,538 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:14:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:14:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash 56310605, now seen corresponding path program 2 times [2022-12-13 09:14:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:14:06,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6603124] [2022-12-13 09:14:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:14:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:14:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:14:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 18 proven. 714 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2022-12-13 09:14:17,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:14:17,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6603124] [2022-12-13 09:14:17,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6603124] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:14:17,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416748446] [2022-12-13 09:14:17,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:14:17,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:14:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:14:17,970 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:14:17,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 09:14:18,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:14:18,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:14:18,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-13 09:14:18,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:14:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:14:18,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:14:18,457 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 09:14:18,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 09:14:18,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 09:14:18,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 09:14:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 0 proven. 2046 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:14:25,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:14:35,887 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:14:35,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-12-13 09:14:35,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 09:14:35,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-12-13 09:14:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 0 proven. 2046 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:14:36,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416748446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:14:36,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:14:36,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 47, 47] total 144 [2022-12-13 09:14:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326698791] [2022-12-13 09:14:36,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:14:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 144 states [2022-12-13 09:14:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:14:36,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2022-12-13 09:14:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1671, Invalid=18921, Unknown=0, NotChecked=0, Total=20592 [2022-12-13 09:14:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:14:36,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:14:36,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 144 states, 144 states have (on average 10.1875) internal successors, (1467), 144 states have internal predecessors, (1467), 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) [2022-12-13 09:14:36,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:14:36,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-12-13 09:14:36,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-12-13 09:14:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-12-13 09:15:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-12-13 09:15:43,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 09:15:43,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb84aeb-04c0-41dc-b9ad-d0a28ee4885d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 09:15:43,427 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-12-13 09:15:43,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:15:43,428 INFO L85 PathProgramCache]: Analyzing trace with hash 584937092, now seen corresponding path program 3 times [2022-12-13 09:15:43,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:15:43,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289029760] [2022-12-13 09:15:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:15:43,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:15:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat