./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:33:04,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:33:04,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:33:04,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:33:04,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:33:04,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:33:04,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:33:04,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:33:04,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:33:04,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:33:04,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:33:04,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:33:04,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:33:04,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:33:04,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:33:04,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:33:04,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:33:04,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:33:04,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:33:04,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:33:04,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:33:04,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:33:04,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:33:04,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:33:04,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:33:04,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:33:04,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:33:04,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:33:04,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:33:04,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:33:04,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:33:04,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:33:04,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:33:04,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:33:04,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:33:04,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:33:04,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:33:04,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:33:04,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:33:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:33:04,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:33:04,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:33:04,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:33:04,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:33:04,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:33:04,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:33:04,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:33:04,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:33:04,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:33:04,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:33:04,448 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:33:04,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:33:04,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:33:04,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:33:04,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:33:04,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:33:04,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:33:04,450 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:33:04,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:33:04,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:33:04,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:33:04,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2021-12-07 01:33:04,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:33:04,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:33:04,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:33:04,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:33:04,641 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:33:04,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-12-07 01:33:04,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/data/985694a6e/609ad8a469b643ff8108aff1e455ffe5/FLAGc6a768b10 [2021-12-07 01:33:05,293 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:33:05,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-12-07 01:33:05,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/data/985694a6e/609ad8a469b643ff8108aff1e455ffe5/FLAGc6a768b10 [2021-12-07 01:33:05,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/data/985694a6e/609ad8a469b643ff8108aff1e455ffe5 [2021-12-07 01:33:05,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:33:05,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:33:05,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:33:05,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:33:05,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:33:05,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:05" (1/1) ... [2021-12-07 01:33:05,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce6295e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:05, skipping insertion in model container [2021-12-07 01:33:05,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:33:05" (1/1) ... [2021-12-07 01:33:05,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:33:05,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:33:06,028 WARN L230 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_263a946f-95ea-4f59-9724-a0485e0ffad8/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-12-07 01:33:06,032 WARN L230 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_263a946f-95ea-4f59-9724-a0485e0ffad8/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-12-07 01:33:06,571 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-07 01:33:06,620 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,633 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,633 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,635 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,635 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:06,909 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:33:06,910 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:33:06,911 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:33:06,911 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:33:06,912 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:33:06,913 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:33:06,914 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:33:06,914 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:33:06,914 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:33:06,915 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:33:07,034 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,038 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:33:07,099 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:33:07,108 WARN L230 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_263a946f-95ea-4f59-9724-a0485e0ffad8/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-12-07 01:33:07,109 WARN L230 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_263a946f-95ea-4f59-9724-a0485e0ffad8/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-12-07 01:33:07,132 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-07 01:33:07,142 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,144 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,144 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,149 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,149 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,150 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,150 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,151 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:33:07,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:33:07,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:33:07,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:33:07,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:33:07,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:33:07,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:33:07,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:33:07,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:33:07,180 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:33:07,199 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,202 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:33:07,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:33:07,394 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:33:07,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07 WrapperNode [2021-12-07 01:33:07,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:33:07,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:33:07,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:33:07,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:33:07,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,509 INFO L137 Inliner]: procedures = 691, calls = 1684, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 684 [2021-12-07 01:33:07,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:33:07,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:33:07,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:33:07,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:33:07,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:33:07,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:33:07,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:33:07,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:33:07,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (1/1) ... [2021-12-07 01:33:07,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:33:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:33:07,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:33:07,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:33:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2021-12-07 01:33:07,626 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2021-12-07 01:33:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-07 01:33:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-07 01:33:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-07 01:33:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-07 01:33:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-07 01:33:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-07 01:33:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:33:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-07 01:33:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-07 01:33:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-07 01:33:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-07 01:33:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-12-07 01:33:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:33:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:33:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-07 01:33:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-07 01:33:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2021-12-07 01:33:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2021-12-07 01:33:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-07 01:33:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-07 01:33:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:33:07,809 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:33:07,810 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:33:08,525 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:33:08,533 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:33:08,533 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:33:08,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:33:08 BoogieIcfgContainer [2021-12-07 01:33:08,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:33:08,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:33:08,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:33:08,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:33:08,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:33:05" (1/3) ... [2021-12-07 01:33:08,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e83f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:33:08, skipping insertion in model container [2021-12-07 01:33:08,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:33:07" (2/3) ... [2021-12-07 01:33:08,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e83f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:33:08, skipping insertion in model container [2021-12-07 01:33:08,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:33:08" (3/3) ... [2021-12-07 01:33:08,543 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2021-12-07 01:33:08,548 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:33:08,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:33:08,596 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:33:08,602 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:33:08,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:33:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-07 01:33:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-07 01:33:08,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:33:08,634 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:33:08,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:33:08,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:33:08,640 INFO L85 PathProgramCache]: Analyzing trace with hash 928387541, now seen corresponding path program 1 times [2021-12-07 01:33:08,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:33:08,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758009430] [2021-12-07 01:33:08,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:08,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:33:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:33:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:33:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:33:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:33:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 01:33:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:33:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:33:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:33:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 01:33:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:33:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 01:33:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:33:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 01:33:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-07 01:33:09,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:33:09,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758009430] [2021-12-07 01:33:09,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758009430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:33:09,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:33:09,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:33:09,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990430659] [2021-12-07 01:33:09,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:33:09,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:33:09,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:33:09,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:33:09,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:33:09,250 INFO L87 Difference]: Start difference. First operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:33:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:33:09,752 INFO L93 Difference]: Finished difference Result 413 states and 633 transitions. [2021-12-07 01:33:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:33:09,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2021-12-07 01:33:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:33:09,768 INFO L225 Difference]: With dead ends: 413 [2021-12-07 01:33:09,768 INFO L226 Difference]: Without dead ends: 230 [2021-12-07 01:33:09,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:33:09,779 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 70 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:33:09,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 339 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:33:09,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-12-07 01:33:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2021-12-07 01:33:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 107 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-12-07 01:33:09,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2021-12-07 01:33:09,845 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 84 [2021-12-07 01:33:09,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:33:09,845 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2021-12-07 01:33:09,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:33:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2021-12-07 01:33:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-07 01:33:09,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:33:09,849 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:33:09,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:33:09,850 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:33:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:33:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash -734960815, now seen corresponding path program 1 times [2021-12-07 01:33:09,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:33:09,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348419087] [2021-12-07 01:33:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:09,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:33:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:33:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:33:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:33:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:33:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 01:33:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:33:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 01:33:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:33:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 01:33:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:33:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 01:33:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:33:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 01:33:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-07 01:33:10,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:33:10,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348419087] [2021-12-07 01:33:10,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348419087] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:33:10,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586748193] [2021-12-07 01:33:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:10,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:10,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:33:10,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:33:10,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:33:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:10,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:33:10,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:33:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 01:33:10,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:33:10,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586748193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:33:10,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:33:10,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-07 01:33:10,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949641713] [2021-12-07 01:33:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:33:10,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:33:10,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:33:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:33:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:33:10,603 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-07 01:33:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:33:10,781 INFO L93 Difference]: Finished difference Result 325 states and 446 transitions. [2021-12-07 01:33:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:33:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2021-12-07 01:33:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:33:10,783 INFO L225 Difference]: With dead ends: 325 [2021-12-07 01:33:10,784 INFO L226 Difference]: Without dead ends: 182 [2021-12-07 01:33:10,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:33:10,786 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 245 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:33:10,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 717 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:33:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-12-07 01:33:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-12-07 01:33:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2021-12-07 01:33:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 250 transitions. [2021-12-07 01:33:10,805 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 250 transitions. Word has length 84 [2021-12-07 01:33:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:33:10,805 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 250 transitions. [2021-12-07 01:33:10,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-07 01:33:10,806 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2021-12-07 01:33:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 01:33:10,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:33:10,808 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:33:10,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:33:11,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-07 01:33:11,009 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:33:11,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:33:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1141222523, now seen corresponding path program 1 times [2021-12-07 01:33:11,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:33:11,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317220181] [2021-12-07 01:33:11,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:11,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:33:11,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:33:11,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431214340] [2021-12-07 01:33:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:11,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:11,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:33:11,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:33:11,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:33:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:11,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 01:33:11,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:33:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-07 01:33:11,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:33:11,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:33:11,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317220181] [2021-12-07 01:33:11,486 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:33:11,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431214340] [2021-12-07 01:33:11,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431214340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:33:11,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:33:11,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:33:11,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910143946] [2021-12-07 01:33:11,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:33:11,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:33:11,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:33:11,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:33:11,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:33:11,487 INFO L87 Difference]: Start difference. First operand 182 states and 250 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 01:33:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:33:11,738 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2021-12-07 01:33:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:33:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2021-12-07 01:33:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:33:11,741 INFO L225 Difference]: With dead ends: 317 [2021-12-07 01:33:11,741 INFO L226 Difference]: Without dead ends: 182 [2021-12-07 01:33:11,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:33:11,743 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 265 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:33:11,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 968 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:33:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-12-07 01:33:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-12-07 01:33:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2021-12-07 01:33:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2021-12-07 01:33:11,767 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 99 [2021-12-07 01:33:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:33:11,767 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2021-12-07 01:33:11,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 01:33:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2021-12-07 01:33:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-07 01:33:11,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:33:11,770 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-07 01:33:11,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:33:11,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:11,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:33:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:33:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash 232916013, now seen corresponding path program 2 times [2021-12-07 01:33:11,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:33:11,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046817045] [2021-12-07 01:33:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:11,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:33:12,129 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:33:12,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118718097] [2021-12-07 01:33:12,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:33:12,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:12,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:33:12,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:33:12,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:33:12,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:33:12,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:33:12,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:33:12,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:33:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-07 01:33:12,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:33:12,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:33:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046817045] [2021-12-07 01:33:12,835 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:33:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118718097] [2021-12-07 01:33:12,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118718097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:33:12,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:33:12,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:33:12,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736907096] [2021-12-07 01:33:12,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:33:12,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:33:12,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:33:12,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:33:12,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:33:12,837 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 01:33:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:33:13,144 INFO L93 Difference]: Finished difference Result 326 states and 450 transitions. [2021-12-07 01:33:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:33:13,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2021-12-07 01:33:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:33:13,146 INFO L225 Difference]: With dead ends: 326 [2021-12-07 01:33:13,146 INFO L226 Difference]: Without dead ends: 194 [2021-12-07 01:33:13,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:33:13,148 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 283 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:33:13,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1297 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:33:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-12-07 01:33:13,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-12-07 01:33:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 113 states have (on average 1.1858407079646018) internal successors, (134), 115 states have internal predecessors, (134), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2021-12-07 01:33:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2021-12-07 01:33:13,173 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 114 [2021-12-07 01:33:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:33:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2021-12-07 01:33:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 01:33:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2021-12-07 01:33:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-07 01:33:13,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:33:13,178 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:33:13,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:33:13,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:13,380 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:33:13,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:33:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -159680425, now seen corresponding path program 1 times [2021-12-07 01:33:13,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:33:13,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398451415] [2021-12-07 01:33:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:13,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:33:13,466 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:33:13,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094081749] [2021-12-07 01:33:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:33:13,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:33:13,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:33:13,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:33:13,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_263a946f-95ea-4f59-9724-a0485e0ffad8/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:33:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:33:14,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 323 conjunts are in the unsatisfiable core [2021-12-07 01:33:14,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:33:14,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:33:14,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:33:14,423 INFO L354 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2021-12-07 01:33:14,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2021-12-07 01:33:37,490 INFO L354 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2021-12-07 01:33:37,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2021-12-07 01:33:43,038 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-12-07 01:33:43,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2021-12-07 01:33:47,380 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_344 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_344)))) is different from true [2021-12-07 01:34:02,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:34:02,669 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-07 01:34:02,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 68 [2021-12-07 01:34:02,699 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-07 01:34:02,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:34:35,166 WARN L322 ript$VariableManager]: TermVariabe aux_mod_v_arrayElimCell_11_45 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:34:35,166 WARN L322 ript$VariableManager]: TermVariabe aux_div_v_arrayElimCell_11_45 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:34:42,048 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_346 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_346)))) is different from true [2021-12-07 01:35:04,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 63 [2021-12-07 01:35:25,410 WARN L322 ript$VariableManager]: TermVariabe aux_mod_v_arrayElimCell_11_45 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:35:25,410 WARN L322 ript$VariableManager]: TermVariabe aux_div_v_arrayElimCell_11_45 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:35:50,060 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:35:50,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 137 [2021-12-07 01:46:05,931 WARN L838 $PredicateComparison]: unable to prove that (exists ((aux_div_aux_mod_v_arrayElimCell_21_45_56 Int) (v_aux_mod_v_arrayElimCell_11_45_2 Int) (aux_div_v_arrayElimCell_20_45 Int) (aux_mod_v_arrayElimCell_20_45 Int) (v_aux_div_v_arrayElimCell_11_45_2 Int)) (let ((.cse0 (* 18446744073709551616 aux_div_aux_mod_v_arrayElimCell_21_45_56)) (.cse1 (+ (* v_aux_div_v_arrayElimCell_11_45_2 18446744073709551616) v_aux_mod_v_arrayElimCell_11_45_2)) (.cse2 (+ (* aux_div_v_arrayElimCell_20_45 18446744073709551616) aux_mod_v_arrayElimCell_20_45))) (and (< aux_mod_v_arrayElimCell_20_45 18446744073709551616) (<= 0 aux_mod_v_arrayElimCell_20_45) (<= 0 v_aux_mod_v_arrayElimCell_11_45_2) (<= v_aux_mod_v_arrayElimCell_11_45_2 .cse0) (< .cse0 18446744073709551616) (= (mod .cse1 .cse2) 0) (let ((.cse3 (mod (* (div .cse1 .cse2) .cse2) 18446744073709551616))) (or (and (= |c___VERIFIER_assert_#in~cond| 1) (<= .cse3 0)) (and (< 0 .cse3) (= |c___VERIFIER_assert_#in~cond| 0)))) (not (= aux_mod_v_arrayElimCell_20_45 0))))) is different from false