./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- 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-4e7fbc6 [2022-11-23 02:18:59,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:18:59,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:18:59,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:18:59,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:18:59,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:18:59,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:18:59,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:18:59,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:18:59,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:18:59,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:18:59,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:18:59,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:18:59,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:18:59,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:18:59,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:18:59,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:18:59,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:18:59,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:18:59,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:18:59,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:18:59,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:18:59,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:18:59,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:18:59,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:18:59,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:18:59,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:18:59,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:18:59,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:18:59,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:18:59,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:18:59,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:18:59,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:18:59,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:18:59,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:18:59,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:18:59,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:18:59,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:18:59,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:18:59,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:18:59,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:18:59,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 02:18:59,645 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:18:59,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:18:59,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:18:59,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:18:59,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:18:59,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:18:59,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:18:59,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:18:59,650 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:18:59,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:18:59,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:18:59,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:18:59,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:18:59,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:18:59,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:18:59,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:18:59,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:18:59,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:18:59,653 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:18:59,654 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:18:59,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:18:59,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:18:59,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:18:59,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:18:59,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:18:59,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:18:59,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:18:59,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:18:59,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:18:59,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:18:59,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:18:59,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:18:59,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:18:59,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:18:59,658 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:18:59,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:18:59,659 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2022-11-23 02:19:00,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:19:00,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:19:00,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:19:00,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:19:00,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:19:00,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-11-23 02:19:03,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:19:04,043 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:19:04,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-11-23 02:19:04,073 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/data/799ad7460/63e197a7be1b4371a68c8e5e11137ba7/FLAG350ee044e [2022-11-23 02:19:04,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/data/799ad7460/63e197a7be1b4371a68c8e5e11137ba7 [2022-11-23 02:19:04,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:19:04,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:19:04,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:04,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:19:04,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:19:04,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:04" (1/1) ... [2022-11-23 02:19:04,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4e4a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:04, skipping insertion in model container [2022-11-23 02:19:04,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:04" (1/1) ... [2022-11-23 02:19:04,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:19:04,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:19:04,825 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-11-23 02:19:04,991 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-11-23 02:19:04,992 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-11-23 02:19:05,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:05,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:19:05,069 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-11-23 02:19:05,172 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-11-23 02:19:05,173 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_f382876b-5d09-472f-9a46-711f37678a09/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-11-23 02:19:05,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:05,254 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:19:05,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05 WrapperNode [2022-11-23 02:19:05,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:05,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:05,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:19:05,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:19:05,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,407 INFO L138 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 998 [2022-11-23 02:19:05,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:05,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:19:05,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:19:05,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:19:05,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:19:05,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:19:05,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:19:05,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:19:05,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (1/1) ... [2022-11-23 02:19:05,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:19:05,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:05,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:19:05,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:19:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:19:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:19:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 02:19:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 02:19:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 02:19:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:19:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 02:19:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:19:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 02:19:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 02:19:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:19:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:19:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:19:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:19:06,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:19:06,047 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:19:07,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:19:07,878 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:19:07,879 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-23 02:19:07,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:07 BoogieIcfgContainer [2022-11-23 02:19:07,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:19:07,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:19:07,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:19:07,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:19:07,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:04" (1/3) ... [2022-11-23 02:19:07,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebce235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:07, skipping insertion in model container [2022-11-23 02:19:07,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:05" (2/3) ... [2022-11-23 02:19:07,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebce235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:07, skipping insertion in model container [2022-11-23 02:19:07,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:07" (3/3) ... [2022-11-23 02:19:07,894 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-1.i [2022-11-23 02:19:07,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:19:07,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 02:19:07,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:19:07,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62a673a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:19:07,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 02:19:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 181 states have (on average 1.707182320441989) internal successors, (309), 187 states have internal predecessors, (309), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:08,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 02:19:08,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:08,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:08,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:08,016 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-11-23 02:19:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476497296] [2022-11-23 02:19:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:08,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476497296] [2022-11-23 02:19:08,230 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 02:19:08,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065129791] [2022-11-23 02:19:08,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:08,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:08,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:08,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 02:19:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:08,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 02:19:08,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:08,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:08,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065129791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:08,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:08,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:19:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341399056] [2022-11-23 02:19:08,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:08,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:19:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:08,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:19:08,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:19:08,516 INFO L87 Difference]: Start difference. First operand has 192 states, 181 states have (on average 1.707182320441989) internal successors, (309), 187 states have internal predecessors, (309), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:08,587 INFO L93 Difference]: Finished difference Result 381 states and 627 transitions. [2022-11-23 02:19:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:19:08,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 02:19:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:08,603 INFO L225 Difference]: With dead ends: 381 [2022-11-23 02:19:08,603 INFO L226 Difference]: Without dead ends: 185 [2022-11-23 02:19:08,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:19:08,614 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:08,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:19:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-23 02:19:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-23 02:19:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 175 states have (on average 1.3314285714285714) internal successors, (233), 180 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 239 transitions. [2022-11-23 02:19:08,720 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 239 transitions. Word has length 7 [2022-11-23 02:19:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:08,721 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 239 transitions. [2022-11-23 02:19:08,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 239 transitions. [2022-11-23 02:19:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 02:19:08,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:08,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:08,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:08,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:08,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:08,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-11-23 02:19:08,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:08,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568499455] [2022-11-23 02:19:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:08,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:08,985 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:19:08,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489336961] [2022-11-23 02:19:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:08,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:08,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:09,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:09,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 02:19:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:09,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 02:19:09,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:09,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 02:19:09,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:19:09,351 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-23 02:19:09,352 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 [2022-11-23 02:19:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 02:19:09,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-23 02:19:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:09,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:09,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:09,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568499455] [2022-11-23 02:19:09,407 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:19:09,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489336961] [2022-11-23 02:19:09,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489336961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:09,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:09,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:19:09,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152456341] [2022-11-23 02:19:09,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:09,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:19:09,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:09,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:19:09,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:19:09,411 INFO L87 Difference]: Start difference. First operand 185 states and 239 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:10,315 INFO L93 Difference]: Finished difference Result 304 states and 397 transitions. [2022-11-23 02:19:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:19:10,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 02:19:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:10,319 INFO L225 Difference]: With dead ends: 304 [2022-11-23 02:19:10,319 INFO L226 Difference]: Without dead ends: 302 [2022-11-23 02:19:10,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:19:10,321 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 188 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:10,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 712 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 02:19:10,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-11-23 02:19:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 191. [2022-11-23 02:19:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.3259668508287292) internal successors, (240), 186 states have internal predecessors, (240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 246 transitions. [2022-11-23 02:19:10,337 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 246 transitions. Word has length 7 [2022-11-23 02:19:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:10,338 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 246 transitions. [2022-11-23 02:19:10,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 246 transitions. [2022-11-23 02:19:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 02:19:10,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:10,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:10,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 02:19:10,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:10,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:10,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1297280592, now seen corresponding path program 1 times [2022-11-23 02:19:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:10,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744714319] [2022-11-23 02:19:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:11,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:11,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744714319] [2022-11-23 02:19:11,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744714319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:11,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:11,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:19:11,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392530232] [2022-11-23 02:19:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:11,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:19:11,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:11,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:19:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:19:11,021 INFO L87 Difference]: Start difference. First operand 191 states and 246 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:11,389 INFO L93 Difference]: Finished difference Result 353 states and 459 transitions. [2022-11-23 02:19:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:19:11,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-23 02:19:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:11,391 INFO L225 Difference]: With dead ends: 353 [2022-11-23 02:19:11,391 INFO L226 Difference]: Without dead ends: 268 [2022-11-23 02:19:11,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:19:11,393 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 100 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:11,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 599 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 02:19:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-23 02:19:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 191. [2022-11-23 02:19:11,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.3204419889502763) internal successors, (239), 186 states have internal predecessors, (239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:11,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions. [2022-11-23 02:19:11,413 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 50 [2022-11-23 02:19:11,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:11,414 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions. [2022-11-23 02:19:11,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions. [2022-11-23 02:19:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 02:19:11,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:11,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:11,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:19:11,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:11,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1818750011, now seen corresponding path program 1 times [2022-11-23 02:19:11,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:11,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045081692] [2022-11-23 02:19:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:11,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:11,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:19:11,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951454846] [2022-11-23 02:19:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:11,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:11,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:11,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:11,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 02:19:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:12,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 02:19:12,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:12,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:12,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045081692] [2022-11-23 02:19:12,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:19:12,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951454846] [2022-11-23 02:19:12,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951454846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:12,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:12,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:19:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260292418] [2022-11-23 02:19:12,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:12,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:19:12,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:12,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:19:12,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:19:12,281 INFO L87 Difference]: Start difference. First operand 191 states and 245 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:12,383 INFO L93 Difference]: Finished difference Result 395 states and 513 transitions. [2022-11-23 02:19:12,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:19:12,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-23 02:19:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:12,386 INFO L225 Difference]: With dead ends: 395 [2022-11-23 02:19:12,386 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 02:19:12,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:19:12,394 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 9 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:12,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 423 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:19:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 02:19:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2022-11-23 02:19:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 201 states have (on average 1.2885572139303483) internal successors, (259), 206 states have internal predecessors, (259), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 265 transitions. [2022-11-23 02:19:12,406 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 265 transitions. Word has length 57 [2022-11-23 02:19:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:12,407 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 265 transitions. [2022-11-23 02:19:12,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:12,409 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 265 transitions. [2022-11-23 02:19:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 02:19:12,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:12,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:12,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:12,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:12,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1309276921, now seen corresponding path program 1 times [2022-11-23 02:19:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475151735] [2022-11-23 02:19:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:12,791 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:19:12,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036380598] [2022-11-23 02:19:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:12,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:12,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:12,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:12,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 02:19:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:13,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 02:19:13,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:13,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:13,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475151735] [2022-11-23 02:19:13,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:19:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036380598] [2022-11-23 02:19:13,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036380598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:13,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:13,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:19:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519575111] [2022-11-23 02:19:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:13,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:19:13,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:13,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:19:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:19:13,640 INFO L87 Difference]: Start difference. First operand 211 states and 265 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:13,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:13,728 INFO L93 Difference]: Finished difference Result 404 states and 512 transitions. [2022-11-23 02:19:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:19:13,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-23 02:19:13,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:13,731 INFO L225 Difference]: With dead ends: 404 [2022-11-23 02:19:13,731 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 02:19:13,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:19:13,733 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 224 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:13,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 447 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:19:13,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 02:19:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2022-11-23 02:19:13,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 187 states have (on average 1.2727272727272727) internal successors, (238), 192 states have internal predecessors, (238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 244 transitions. [2022-11-23 02:19:13,744 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 244 transitions. Word has length 57 [2022-11-23 02:19:13,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:13,745 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 244 transitions. [2022-11-23 02:19:13,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:13,746 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 244 transitions. [2022-11-23 02:19:13,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 02:19:13,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:13,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:13,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:13,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:13,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:13,958 INFO L85 PathProgramCache]: Analyzing trace with hash 714659257, now seen corresponding path program 1 times [2022-11-23 02:19:13,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:13,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243191385] [2022-11-23 02:19:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:13,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:14,127 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:19:14,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455473226] [2022-11-23 02:19:14,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:14,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:14,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:14,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:14,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 02:19:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:15,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 02:19:15,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:15,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:15,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:15,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243191385] [2022-11-23 02:19:15,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:19:15,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455473226] [2022-11-23 02:19:15,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455473226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:15,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:15,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:19:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734309800] [2022-11-23 02:19:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:15,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:19:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:19:15,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:19:15,267 INFO L87 Difference]: Start difference. First operand 197 states and 244 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:15,395 INFO L93 Difference]: Finished difference Result 495 states and 616 transitions. [2022-11-23 02:19:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:19:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-23 02:19:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:15,398 INFO L225 Difference]: With dead ends: 495 [2022-11-23 02:19:15,398 INFO L226 Difference]: Without dead ends: 306 [2022-11-23 02:19:15,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:19:15,399 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 99 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:15,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 473 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:19:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-23 02:19:15,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2022-11-23 02:19:15,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 293 states have (on average 1.266211604095563) internal successors, (371), 298 states have internal predecessors, (371), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:19:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 377 transitions. [2022-11-23 02:19:15,418 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 377 transitions. Word has length 57 [2022-11-23 02:19:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:15,418 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 377 transitions. [2022-11-23 02:19:15,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:19:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 377 transitions. [2022-11-23 02:19:15,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 02:19:15,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:15,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:15,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:15,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:15,641 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:19:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash -270327157, now seen corresponding path program 1 times [2022-11-23 02:19:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:15,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785705323] [2022-11-23 02:19:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:15,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:15,712 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:19:15,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534422581] [2022-11-23 02:19:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:15,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:19:15,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:15,714 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:19:15,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f382876b-5d09-472f-9a46-711f37678a09/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 02:19:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:16,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-23 02:19:16,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:16,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 02:19:16,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:19:16,591 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 02:19:16,592 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 [2022-11-23 02:19:16,653 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 14 treesize of output 16 [2022-11-23 02:19:16,709 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 14 treesize of output 16 [2022-11-23 02:19:17,314 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 14 treesize of output 16 [2022-11-23 02:19:17,351 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 14 treesize of output 16 [2022-11-23 02:19:17,378 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 14 treesize of output 16 [2022-11-23 02:19:17,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 02:19:17,432 INFO L321 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2022-11-23 02:19:17,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 51 [2022-11-23 02:19:17,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 26 treesize of output 14 [2022-11-23 02:19:17,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2022-11-23 02:19:33,866 INFO L217 Elim1Store]: Index analysis took 1381 ms