./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 5e519f3a 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_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/config/TaipanReach.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_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- 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-5e519f3 [2022-11-03 03:54:17,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:54:17,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:54:17,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:54:17,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:54:17,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:54:17,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:54:17,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:54:17,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:54:17,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:54:17,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:54:17,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:54:17,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:54:17,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:54:17,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:54:17,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:54:17,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:54:17,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:54:17,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:54:17,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:54:17,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:54:17,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:54:17,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:54:17,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:54:17,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:54:17,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:54:17,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:54:17,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:54:17,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:54:17,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:54:17,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:54:17,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:54:17,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:54:17,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:54:17,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:54:17,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:54:17,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:54:17,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:54:17,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:54:17,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:54:17,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:54:17,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:54:17,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:54:17,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:54:17,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:54:17,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:54:17,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:54:17,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:54:17,747 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:54:17,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:54:17,747 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:54:17,748 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:54:17,749 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:54:17,749 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:54:17,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:54:17,750 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:54:17,750 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:54:17,750 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:54:17,751 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:54:17,751 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:54:17,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:54:17,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:54:17,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:54:17,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:54:17,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:54:17,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:54:17,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:54:17,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:54:17,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:54:17,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:54:17,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:54:17,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:54:17,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:54:17,757 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:54:17,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:54:17,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:54:17,758 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:54:17,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:54:17,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:54:17,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:54:17,759 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_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2022-11-03 03:54:18,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:54:18,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:54:18,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:54:18,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:54:18,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:54:18,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-03 03:54:18,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/data/48f444a1f/244b841d711a4c3b87d503374709df7c/FLAGc051cb8f3 [2022-11-03 03:54:19,015 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:54:19,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-03 03:54:19,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/data/48f444a1f/244b841d711a4c3b87d503374709df7c/FLAGc051cb8f3 [2022-11-03 03:54:19,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/data/48f444a1f/244b841d711a4c3b87d503374709df7c [2022-11-03 03:54:19,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:54:19,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:54:19,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:54:19,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:54:19,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:54:19,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:19" (1/1) ... [2022-11-03 03:54:19,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d81f5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:19, skipping insertion in model container [2022-11-03 03:54:19,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:19" (1/1) ... [2022-11-03 03:54:19,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:54:19,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:54:20,039 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_7ba00f09-b9ce-4b82-af78-317538ffced3/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-03 03:54:20,047 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_7ba00f09-b9ce-4b82-af78-317538ffced3/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-03 03:54:20,966 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:54:21,052 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,067 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,068 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,071 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,076 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,089 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,097 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,101 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,103 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,106 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,108 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,110 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,111 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:54:21,441 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:54:21,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:54:21,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:54:21,446 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:54:21,447 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:54:21,448 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:54:21,449 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:54:21,449 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:54:21,450 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:54:21,674 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,680 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:54:21,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:54:21,915 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_7ba00f09-b9ce-4b82-af78-317538ffced3/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-03 03:54:21,915 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_7ba00f09-b9ce-4b82-af78-317538ffced3/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-03 03:54:21,950 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:54:21,968 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,968 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,968 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,969 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,970 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,985 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,986 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,987 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,988 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,989 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,990 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,990 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:21,991 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:22,031 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:54:22,033 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:54:22,034 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:54:22,035 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:54:22,036 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:54:22,037 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:54:22,037 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:54:22,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:54:22,039 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:54:22,039 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:54:22,074 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:22,081 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:54:22,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:54:22,403 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:54:22,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22 WrapperNode [2022-11-03 03:54:22,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:54:22,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:54:22,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:54:22,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:54:22,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,606 INFO L138 Inliner]: procedures = 691, calls = 1684, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 684 [2022-11-03 03:54:22,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:54:22,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:54:22,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:54:22,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:54:22,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:54:22,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:54:22,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:54:22,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:54:22,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (1/1) ... [2022-11-03 03:54:22,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:54:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:22,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:54:22,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:54:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-11-03 03:54:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-11-03 03:54:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:54:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-03 03:54:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-03 03:54:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-03 03:54:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-03 03:54:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 03:54:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 03:54:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:54:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-03 03:54:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-03 03:54:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:54:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:54:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:54:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:54:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:54:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:54:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:54:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 03:54:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 03:54:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 03:54:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 03:54:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-03 03:54:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-03 03:54:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-03 03:54:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-03 03:54:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:54:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:54:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:54:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:54:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:54:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 03:54:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 03:54:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-03 03:54:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-03 03:54:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:54:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-11-03 03:54:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-11-03 03:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2022-11-03 03:54:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2022-11-03 03:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-03 03:54:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-03 03:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:54:23,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:54:23,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:54:24,536 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:54:24,741 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:54:24,741 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:54:24,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:24 BoogieIcfgContainer [2022-11-03 03:54:24,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:54:24,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:54:24,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:54:24,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:54:24,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:19" (1/3) ... [2022-11-03 03:54:24,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a6057a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:24, skipping insertion in model container [2022-11-03 03:54:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:22" (2/3) ... [2022-11-03 03:54:24,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a6057a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:24, skipping insertion in model container [2022-11-03 03:54:24,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:24" (3/3) ... [2022-11-03 03:54:24,761 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2022-11-03 03:54:24,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:54:24,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:54:24,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:54:24,878 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=FINITE_AUTOMATA, 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;@481557c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:54:24,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:54:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 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) [2022-11-03 03:54:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 03:54:24,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:24,904 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 03:54:24,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:24,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1395494391, now seen corresponding path program 1 times [2022-11-03 03:54:24,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:24,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065948401] [2022-11-03 03:54:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:24,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 03:54:25,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:25,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065948401] [2022-11-03 03:54:25,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065948401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:54:25,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100076577] [2022-11-03 03:54:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:25,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:25,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:25,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:25,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:54:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:26,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:54:26,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:54:26,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:54:26,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100076577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:26,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:54:26,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-03 03:54:26,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881379332] [2022-11-03 03:54:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:26,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:54:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:54:26,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:54:26,758 INFO L87 Difference]: Start difference. First operand has 155 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 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 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-11-03 03:54:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:27,824 INFO L93 Difference]: Finished difference Result 281 states and 414 transitions. [2022-11-03 03:54:27,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:54:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 67 [2022-11-03 03:54:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:27,837 INFO L225 Difference]: With dead ends: 281 [2022-11-03 03:54:27,837 INFO L226 Difference]: Without dead ends: 155 [2022-11-03 03:54:27,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:54:27,844 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 29 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:27,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 593 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 03:54:27,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-03 03:54:27,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-03 03:54:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 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) [2022-11-03 03:54:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 216 transitions. [2022-11-03 03:54:27,903 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 216 transitions. Word has length 67 [2022-11-03 03:54:27,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:27,904 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 216 transitions. [2022-11-03 03:54:27,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-11-03 03:54:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 216 transitions. [2022-11-03 03:54:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 03:54:27,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:27,908 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 03:54:27,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:28,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 03:54:28,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2016367126, now seen corresponding path program 1 times [2022-11-03 03:54:28,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:28,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834673860] [2022-11-03 03:54:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:28,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:28,240 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:54:28,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618848679] [2022-11-03 03:54:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:28,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:28,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:28,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:54:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:28,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:54:28,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:54:28,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:54:28,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:28,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834673860] [2022-11-03 03:54:28,894 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:54:28,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618848679] [2022-11-03 03:54:28,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618848679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:28,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:28,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:54:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688167611] [2022-11-03 03:54:28,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:54:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:54:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:54:28,899 INFO L87 Difference]: Start difference. First operand 155 states and 216 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2022-11-03 03:54:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:30,982 INFO L93 Difference]: Finished difference Result 270 states and 380 transitions. [2022-11-03 03:54:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:54:30,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 76 [2022-11-03 03:54:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:30,990 INFO L225 Difference]: With dead ends: 270 [2022-11-03 03:54:30,990 INFO L226 Difference]: Without dead ends: 155 [2022-11-03 03:54:30,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:54:30,997 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:30,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 823 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 03:54:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-03 03:54:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-03 03:54:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 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) [2022-11-03 03:54:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2022-11-03 03:54:31,032 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 76 [2022-11-03 03:54:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:31,033 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2022-11-03 03:54:31,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2022-11-03 03:54:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2022-11-03 03:54:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 03:54:31,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:31,044 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 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] [2022-11-03 03:54:31,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:31,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:31,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:31,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:31,265 INFO L85 PathProgramCache]: Analyzing trace with hash 214627117, now seen corresponding path program 2 times [2022-11-03 03:54:31,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:31,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907692276] [2022-11-03 03:54:31,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:31,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:31,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:54:31,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988641553] [2022-11-03 03:54:31,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:54:31,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:31,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:31,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:31,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:54:31,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 03:54:31,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:54:31,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:54:31,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-03 03:54:31,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:54:31,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:31,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907692276] [2022-11-03 03:54:31,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:54:31,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988641553] [2022-11-03 03:54:31,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988641553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:31,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:31,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:54:31,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238870316] [2022-11-03 03:54:31,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:31,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:54:31,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:31,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:54:31,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:54:31,881 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:54:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:33,041 INFO L93 Difference]: Finished difference Result 268 states and 375 transitions. [2022-11-03 03:54:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:54:33,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 85 [2022-11-03 03:54:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:33,044 INFO L225 Difference]: With dead ends: 268 [2022-11-03 03:54:33,044 INFO L226 Difference]: Without dead ends: 155 [2022-11-03 03:54:33,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:54:33,046 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:33,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 687 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 03:54:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-03 03:54:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-03 03:54:33,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2022-11-03 03:54:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2022-11-03 03:54:33,062 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 85 [2022-11-03 03:54:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:33,063 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2022-11-03 03:54:33,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:54:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2022-11-03 03:54:33,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 03:54:33,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:33,065 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:54:33,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:33,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:33,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1757082170, now seen corresponding path program 3 times [2022-11-03 03:54:33,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:33,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561874787] [2022-11-03 03:54:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:33,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:33,407 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:54:33,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379185104] [2022-11-03 03:54:33,408 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:54:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:33,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:33,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:54:33,996 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:54:33,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:54:34,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2516 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:54:34,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 03:54:34,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:54:34,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:34,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561874787] [2022-11-03 03:54:34,132 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:54:34,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379185104] [2022-11-03 03:54:34,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379185104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:34,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:34,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:54:34,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471975888] [2022-11-03 03:54:34,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:34,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:54:34,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:34,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:54:34,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:54:34,134 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-03 03:54:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:35,719 INFO L93 Difference]: Finished difference Result 277 states and 384 transitions. [2022-11-03 03:54:35,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:54:35,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 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 94 [2022-11-03 03:54:35,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:35,729 INFO L225 Difference]: With dead ends: 277 [2022-11-03 03:54:35,729 INFO L226 Difference]: Without dead ends: 165 [2022-11-03 03:54:35,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:54:35,735 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:35,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1124 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 03:54:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-03 03:54:35,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-03 03:54:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 84 states have (on average 1.1547619047619047) internal successors, (97), 86 states have internal predecessors, (97), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2022-11-03 03:54:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-11-03 03:54:35,766 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 94 [2022-11-03 03:54:35,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:35,769 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-11-03 03:54:35,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-03 03:54:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-11-03 03:54:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 03:54:35,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:35,776 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-11-03 03:54:35,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-03 03:54:35,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:35,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:35,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash -434979561, now seen corresponding path program 1 times [2022-11-03 03:54:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:35,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416004526] [2022-11-03 03:54:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:35,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:36,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:54:36,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423495126] [2022-11-03 03:54:36,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:36,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:36,106 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:36,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ba00f09-b9ce-4b82-af78-317538ffced3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 03:54:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:37,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 405 conjunts are in the unsatisfiable core [2022-11-03 03:54:37,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:37,370 INFO L390 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 [2022-11-03 03:54:38,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 03:54:42,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:54:42,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 03:54:42,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:54:42,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 03:54:45,905 INFO L356 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-03 03:54:45,906 INFO L390 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 [2022-11-03 03:54:45,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 29 treesize of output 29 [2022-11-03 03:54:45,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 16 treesize of output 18 [2022-11-03 03:54:45,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 16 treesize of output 18 [2022-11-03 03:54:56,744 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-03 03:54:56,744 INFO L390 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 [2022-11-03 03:58:12,710 WARN L234 SmtUtils]: Spent 2.99m on a formula simplification. DAG size of input: 105 DAG size of output: 67 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 03:58:12,711 INFO L356 Elim1Store]: treesize reduction 158, result has 45.3 percent of original size [2022-11-03 03:58:12,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 360 [2022-11-03 03:58:12,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:58:12,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:58:12,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:58:12,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:58:12,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:58:12,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:58:12,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 234 [2022-11-03 03:58:12,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 165 [2022-11-03 03:58:12,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 149