./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9 --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 efb3bc3d53d5de978717fadeb26804aec5f97721ade955fc2d1463ef24ff6010 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 20:02:56,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:02:56,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:02:56,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:02:56,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:02:56,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:02:56,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:02:56,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:02:56,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:02:56,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:02:56,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:02:56,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:02:56,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:02:56,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:02:56,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:02:56,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:02:56,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:02:56,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:02:56,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:02:56,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:02:56,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:02:56,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:02:56,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:02:56,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:02:56,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:02:56,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:02:56,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:02:56,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:02:56,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:02:56,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:02:56,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:02:56,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:02:56,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:02:56,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:02:56,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:02:56,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:02:56,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:02:56,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:02:56,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:02:56,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:02:56,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:02:56,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:02:56,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:02:56,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:02:56,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:02:56,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:02:56,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:02:56,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:02:56,729 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:02:56,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:02:56,730 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:02:56,730 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:02:56,732 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:02:56,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:02:56,733 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:02:56,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:02:56,733 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:02:56,734 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:02:56,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:02:56,735 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:02:56,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:02:56,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:02:56,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:02:56,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:02:56,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:02:56,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:02:56,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:02:56,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:02:56,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:02:56,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:02:56,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:02:56,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:02:56,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:02:56,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:02:56,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:02:56,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:02:56,743 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:02:56,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:02:56,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:02:56,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:02:56,745 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_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efb3bc3d53d5de978717fadeb26804aec5f97721ade955fc2d1463ef24ff6010 [2022-11-20 20:02:57,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:02:57,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:02:57,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:02:57,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:02:57,162 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:02:57,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2022-11-20 20:03:00,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:03:01,522 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:03:01,523 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2022-11-20 20:03:01,574 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/data/511b3b56b/0d437f8f71a8494c9a3cf6e6be6a1403/FLAG8aed49d09 [2022-11-20 20:03:01,598 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/data/511b3b56b/0d437f8f71a8494c9a3cf6e6be6a1403 [2022-11-20 20:03:01,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:03:01,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:03:01,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:03:01,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:03:01,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:03:01,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:01" (1/1) ... [2022-11-20 20:03:01,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f11be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:01, skipping insertion in model container [2022-11-20 20:03:01,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:01" (1/1) ... [2022-11-20 20:03:01,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:03:01,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:03:02,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2022-11-20 20:03:02,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2022-11-20 20:03:03,347 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 20:03:03,489 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,490 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,491 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,492 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,493 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,553 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:03,559 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 20:03:04,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 20:03:04,119 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 20:03:04,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 20:03:04,132 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 20:03:04,133 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 20:03:04,134 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 20:03:04,139 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 20:03:04,140 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 20:03:04,142 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 20:03:04,387 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,388 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:03:04,528 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:03:04,562 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2022-11-20 20:03:04,564 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2022-11-20 20:03:04,630 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 20:03:04,647 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,648 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,648 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,649 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,650 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,657 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,658 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,659 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,660 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,722 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 20:03:04,723 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 20:03:04,724 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 20:03:04,724 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 20:03:04,728 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 20:03:04,729 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 20:03:04,730 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 20:03:04,730 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 20:03:04,731 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 20:03:04,732 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 20:03:04,792 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,793 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:03:04,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:03:05,187 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:03:05,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05 WrapperNode [2022-11-20 20:03:05,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:03:05,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:03:05,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:03:05,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:03:05,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,423 INFO L138 Inliner]: procedures = 689, calls = 1496, calls flagged for inlining = 55, calls inlined = 9, statements flattened = 597 [2022-11-20 20:03:05,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:03:05,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:03:05,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:03:05,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:03:05,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,570 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:03:05,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:03:05,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:03:05,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:03:05,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (1/1) ... [2022-11-20 20:03:05,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:03:05,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:05,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:03:05,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:03:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-20 20:03:05,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-20 20:03:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:03:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 20:03:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 20:03:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 20:03:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 20:03:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 20:03:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 20:03:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:03:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 20:03:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 20:03:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 20:03:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 20:03:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:03:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:03:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:03:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:03:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:03:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2022-11-20 20:03:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2022-11-20 20:03:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 20:03:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 20:03:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 20:03:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 20:03:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-20 20:03:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-20 20:03:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-20 20:03:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-20 20:03:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 20:03:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 20:03:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:03:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:03:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:03:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 20:03:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 20:03:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 20:03:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 20:03:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:03:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-20 20:03:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-20 20:03:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-20 20:03:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-20 20:03:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 20:03:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 20:03:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:03:06,177 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:03:06,180 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:03:07,508 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:03:07,856 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:03:07,856 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 20:03:07,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:07 BoogieIcfgContainer [2022-11-20 20:03:07,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:03:07,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:03:07,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:03:07,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:03:07,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:03:01" (1/3) ... [2022-11-20 20:03:07,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c716c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:07, skipping insertion in model container [2022-11-20 20:03:07,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:05" (2/3) ... [2022-11-20 20:03:07,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c716c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:07, skipping insertion in model container [2022-11-20 20:03:07,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:07" (3/3) ... [2022-11-20 20:03:07,882 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness.i [2022-11-20 20:03:07,909 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:03:07,911 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:03:07,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:03:08,013 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;@7986416f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:03:08,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:03:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-20 20:03:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-20 20:03:08,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:08,039 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 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] [2022-11-20 20:03:08,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2066889203, now seen corresponding path program 1 times [2022-11-20 20:03:08,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:08,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910571872] [2022-11-20 20:03:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:08,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 20:03:08,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:08,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910571872] [2022-11-20 20:03:08,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910571872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:08,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:08,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:03:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225376131] [2022-11-20 20:03:08,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:08,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:03:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:03:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:03:08,990 INFO L87 Difference]: Start difference. First operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 20:03:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:09,313 INFO L93 Difference]: Finished difference Result 199 states and 255 transitions. [2022-11-20 20:03:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:03:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-11-20 20:03:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:09,329 INFO L225 Difference]: With dead ends: 199 [2022-11-20 20:03:09,329 INFO L226 Difference]: Without dead ends: 124 [2022-11-20 20:03:09,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:03:09,336 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:09,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:03:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-20 20:03:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-20 20:03:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 73 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-20 20:03:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2022-11-20 20:03:09,403 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 82 [2022-11-20 20:03:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:09,404 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2022-11-20 20:03:09,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 20:03:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2022-11-20 20:03:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 20:03:09,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:09,409 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 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, 1, 1, 1, 1] [2022-11-20 20:03:09,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:03:09,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:09,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:09,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1062802869, now seen corresponding path program 1 times [2022-11-20 20:03:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:09,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568155449] [2022-11-20 20:03:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-20 20:03:10,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568155449] [2022-11-20 20:03:10,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568155449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:10,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:10,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:03:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67373041] [2022-11-20 20:03:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:10,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:03:10,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:10,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:03:10,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:03:10,236 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:03:10,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:10,707 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2022-11-20 20:03:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:03:10,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 95 [2022-11-20 20:03:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:10,710 INFO L225 Difference]: With dead ends: 200 [2022-11-20 20:03:10,711 INFO L226 Difference]: Without dead ends: 124 [2022-11-20 20:03:10,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:03:10,713 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:10,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 463 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:03:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-20 20:03:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-20 20:03:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 73 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-20 20:03:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2022-11-20 20:03:10,730 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 95 [2022-11-20 20:03:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2022-11-20 20:03:10,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:03:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2022-11-20 20:03:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 20:03:10,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:10,735 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:10,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:03:10,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash 405473573, now seen corresponding path program 1 times [2022-11-20 20:03:10,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:10,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345378411] [2022-11-20 20:03:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:10,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-20 20:03:11,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:11,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345378411] [2022-11-20 20:03:11,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345378411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:11,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:11,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:03:11,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977165743] [2022-11-20 20:03:11,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:11,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:03:11,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:11,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:03:11,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:03:11,548 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 20:03:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:12,336 INFO L93 Difference]: Finished difference Result 211 states and 265 transitions. [2022-11-20 20:03:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:03:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 103 [2022-11-20 20:03:12,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:12,341 INFO L225 Difference]: With dead ends: 211 [2022-11-20 20:03:12,341 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 20:03:12,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:03:12,344 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 47 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:12,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 700 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 20:03:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 20:03:12,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-20 20:03:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 75 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-11-20 20:03:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 157 transitions. [2022-11-20 20:03:12,364 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 157 transitions. Word has length 103 [2022-11-20 20:03:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:12,364 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 157 transitions. [2022-11-20 20:03:12,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 20:03:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 157 transitions. [2022-11-20 20:03:12,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-20 20:03:12,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:12,370 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:12,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:03:12,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash -281707963, now seen corresponding path program 1 times [2022-11-20 20:03:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:12,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842272920] [2022-11-20 20:03:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:12,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:12,482 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:12,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696922267] [2022-11-20 20:03:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:12,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:12,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:12,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:12,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:03:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:13,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2391 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 20:03:13,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-20 20:03:13,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:13,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:13,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842272920] [2022-11-20 20:03:13,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:13,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696922267] [2022-11-20 20:03:13,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696922267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:13,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:13,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:03:13,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951762305] [2022-11-20 20:03:13,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:13,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:03:13,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:13,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:03:13,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:03:13,335 INFO L87 Difference]: Start difference. First operand 126 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 20:03:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:13,842 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2022-11-20 20:03:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:03:13,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 112 [2022-11-20 20:03:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:13,848 INFO L225 Difference]: With dead ends: 205 [2022-11-20 20:03:13,848 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 20:03:13,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:03:13,850 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 28 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:13,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 560 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:03:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 20:03:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-20 20:03:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-11-20 20:03:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2022-11-20 20:03:13,880 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 112 [2022-11-20 20:03:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:13,881 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2022-11-20 20:03:13,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 20:03:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2022-11-20 20:03:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 20:03:13,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:13,889 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:13,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:14,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:14,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:14,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash -495825003, now seen corresponding path program 1 times [2022-11-20 20:03:14,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:14,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437751228] [2022-11-20 20:03:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:14,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:14,211 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:14,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540850293] [2022-11-20 20:03:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:14,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:14,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:14,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:14,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:03:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:14,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2445 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 20:03:15,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 20:03:15,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:15,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:15,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437751228] [2022-11-20 20:03:15,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:15,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540850293] [2022-11-20 20:03:15,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540850293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:15,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:15,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:03:15,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867378472] [2022-11-20 20:03:15,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:15,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:03:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:03:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:03:15,163 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 20:03:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:16,026 INFO L93 Difference]: Finished difference Result 210 states and 259 transitions. [2022-11-20 20:03:16,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:03:16,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 120 [2022-11-20 20:03:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:16,029 INFO L225 Difference]: With dead ends: 210 [2022-11-20 20:03:16,029 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 20:03:16,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:03:16,031 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 42 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:16,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 766 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 20:03:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 20:03:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-20 20:03:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2022-11-20 20:03:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 155 transitions. [2022-11-20 20:03:16,047 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 155 transitions. Word has length 120 [2022-11-20 20:03:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:16,048 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 155 transitions. [2022-11-20 20:03:16,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 20:03:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 155 transitions. [2022-11-20 20:03:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 20:03:16,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:16,053 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:16,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:16,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:16,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1435095651, now seen corresponding path program 1 times [2022-11-20 20:03:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:16,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838646043] [2022-11-20 20:03:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:16,366 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:16,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726779951] [2022-11-20 20:03:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:16,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:16,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:03:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:17,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 20:03:17,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 20:03:17,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:03:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 20:03:17,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838646043] [2022-11-20 20:03:17,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726779951] [2022-11-20 20:03:17,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726779951] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:03:17,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:03:17,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-20 20:03:17,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96740778] [2022-11-20 20:03:17,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:17,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:03:17,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:03:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-20 20:03:17,617 INFO L87 Difference]: Start difference. First operand 126 states and 155 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:03:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:18,259 INFO L93 Difference]: Finished difference Result 136 states and 169 transitions. [2022-11-20 20:03:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:03:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 129 [2022-11-20 20:03:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:18,262 INFO L225 Difference]: With dead ends: 136 [2022-11-20 20:03:18,262 INFO L226 Difference]: Without dead ends: 134 [2022-11-20 20:03:18,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:03:18,264 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 6 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 632 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 20:03:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-20 20:03:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 133. [2022-11-20 20:03:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 80 states have internal predecessors, (89), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-20 20:03:18,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 166 transitions. [2022-11-20 20:03:18,287 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 166 transitions. Word has length 129 [2022-11-20 20:03:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:18,288 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 166 transitions. [2022-11-20 20:03:18,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:03:18,289 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 166 transitions. [2022-11-20 20:03:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 20:03:18,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:18,292 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:18,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:18,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:18,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:18,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2054362933, now seen corresponding path program 1 times [2022-11-20 20:03:18,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:18,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204523283] [2022-11-20 20:03:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:18,589 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:18,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427404087] [2022-11-20 20:03:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:18,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:18,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:18,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:18,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:03:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:19,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 20:03:19,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-20 20:03:19,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:19,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:19,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204523283] [2022-11-20 20:03:19,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:19,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427404087] [2022-11-20 20:03:19,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427404087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:19,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:19,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:03:19,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035026244] [2022-11-20 20:03:19,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:19,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:03:19,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:19,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:03:19,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:03:19,445 INFO L87 Difference]: Start difference. First operand 133 states and 166 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 20:03:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:20,431 INFO L93 Difference]: Finished difference Result 217 states and 270 transitions. [2022-11-20 20:03:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:03:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 130 [2022-11-20 20:03:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:20,435 INFO L225 Difference]: With dead ends: 217 [2022-11-20 20:03:20,435 INFO L226 Difference]: Without dead ends: 133 [2022-11-20 20:03:20,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:03:20,436 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 8 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:20,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 619 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 20:03:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-20 20:03:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-20 20:03:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 80 states have internal predecessors, (88), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-20 20:03:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 165 transitions. [2022-11-20 20:03:20,473 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 165 transitions. Word has length 130 [2022-11-20 20:03:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:20,475 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 165 transitions. [2022-11-20 20:03:20,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 20:03:20,475 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 165 transitions. [2022-11-20 20:03:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 20:03:20,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:20,485 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:20,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:20,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:20,699 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1742512442, now seen corresponding path program 1 times [2022-11-20 20:03:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:20,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231213103] [2022-11-20 20:03:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:20,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:20,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359798762] [2022-11-20 20:03:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:20,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:20,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:20,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:20,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 20:03:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:21,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 20:03:21,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-20 20:03:21,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:21,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:21,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231213103] [2022-11-20 20:03:21,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:21,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359798762] [2022-11-20 20:03:21,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359798762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:21,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:21,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:03:21,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528004677] [2022-11-20 20:03:21,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:21,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:03:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:21,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:03:21,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:03:21,662 INFO L87 Difference]: Start difference. First operand 133 states and 165 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 20:03:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:22,775 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions. [2022-11-20 20:03:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:03:22,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 131 [2022-11-20 20:03:22,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:22,778 INFO L225 Difference]: With dead ends: 218 [2022-11-20 20:03:22,778 INFO L226 Difference]: Without dead ends: 134 [2022-11-20 20:03:22,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:03:22,780 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 11 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:22,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 619 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 20:03:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-20 20:03:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-20 20:03:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 77 states have (on average 1.155844155844156) internal successors, (89), 81 states have internal predecessors, (89), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-20 20:03:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2022-11-20 20:03:22,795 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 131 [2022-11-20 20:03:22,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:22,796 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2022-11-20 20:03:22,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 20:03:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2022-11-20 20:03:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-20 20:03:22,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:22,800 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:22,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:23,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:23,013 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash -942618343, now seen corresponding path program 1 times [2022-11-20 20:03:23,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:23,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776301881] [2022-11-20 20:03:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:23,142 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:23,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842919154] [2022-11-20 20:03:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:23,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:23,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:23,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:23,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 20:03:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:23,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2606 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 20:03:23,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 20:03:23,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:23,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:23,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776301881] [2022-11-20 20:03:23,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:23,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842919154] [2022-11-20 20:03:23,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842919154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:23,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:23,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:03:23,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868631958] [2022-11-20 20:03:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:23,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:03:23,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:03:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:03:23,906 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 20:03:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:24,684 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2022-11-20 20:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:03:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-20 20:03:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:24,687 INFO L225 Difference]: With dead ends: 229 [2022-11-20 20:03:24,687 INFO L226 Difference]: Without dead ends: 138 [2022-11-20 20:03:24,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:03:24,689 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 5 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:24,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 360 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 20:03:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-20 20:03:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2022-11-20 20:03:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 82 states have internal predecessors, (90), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-20 20:03:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2022-11-20 20:03:24,703 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 167 transitions. Word has length 132 [2022-11-20 20:03:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:24,704 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-11-20 20:03:24,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 20:03:24,705 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 167 transitions. [2022-11-20 20:03:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 20:03:24,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:24,708 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:24,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:24,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 20:03:24,922 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:24,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1853719707, now seen corresponding path program 1 times [2022-11-20 20:03:24,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:24,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361986476] [2022-11-20 20:03:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:25,012 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:25,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649744604] [2022-11-20 20:03:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:25,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:25,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:25,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:25,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 20:03:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:26,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 2612 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:03:26,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-20 20:03:26,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:03:26,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:26,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361986476] [2022-11-20 20:03:26,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:26,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649744604] [2022-11-20 20:03:26,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649744604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:26,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:03:26,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:03:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143766860] [2022-11-20 20:03:26,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:26,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:03:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:03:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:03:26,174 INFO L87 Difference]: Start difference. First operand 135 states and 167 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 20:03:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:03:26,615 INFO L93 Difference]: Finished difference Result 223 states and 278 transitions. [2022-11-20 20:03:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:03:26,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2022-11-20 20:03:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:03:26,618 INFO L225 Difference]: With dead ends: 223 [2022-11-20 20:03:26,618 INFO L226 Difference]: Without dead ends: 141 [2022-11-20 20:03:26,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:03:26,620 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 4 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:03:26,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 511 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:03:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-20 20:03:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2022-11-20 20:03:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 80 states have (on average 1.15) internal successors, (92), 83 states have internal predecessors, (92), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 36 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-20 20:03:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2022-11-20 20:03:26,633 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 134 [2022-11-20 20:03:26,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:03:26,634 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2022-11-20 20:03:26,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 20:03:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2022-11-20 20:03:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 20:03:26,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:03:26,637 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:03:26,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 20:03:26,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:26,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:03:26,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:03:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash -774204074, now seen corresponding path program 1 times [2022-11-20 20:03:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:03:26,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435232018] [2022-11-20 20:03:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:26,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:03:26,960 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 20:03:26,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652843339] [2022-11-20 20:03:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:03:26,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:03:26,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:26,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:03:26,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9b191f-0985-4107-983f-ff5ae3b98dbc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 20:03:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:03:27,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2616 conjuncts, 116 conjunts are in the unsatisfiable core [2022-11-20 20:03:27,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:03:27,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:03:28,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:03:28,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2022-11-20 20:03:30,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:03:30,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:03:30,794 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 20:03:33,810 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_916 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_916))) is different from true [2022-11-20 20:03:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 24 proven. 22 refuted. 3 times theorem prover too weak. 23 trivial. 2 not checked. [2022-11-20 20:03:34,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:03:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-20 20:03:35,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:03:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435232018] [2022-11-20 20:03:35,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 20:03:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652843339] [2022-11-20 20:03:35,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652843339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:03:35,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694188824] [2022-11-20 20:03:35,790 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-20 20:03:35,791 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:03:35,795 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:03:35,800 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:03:35,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:03:39,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:03:39,505 INFO L217 Elim1Store]: Index analysis took 606 ms [2022-11-20 20:04:00,177 WARN L233 SmtUtils]: Spent 20.59s on a formula simplification. DAG size of input: 1758 DAG size of output: 1169 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 20:04:00,184 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-11-20 20:04:00,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19112 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 195 case distinctions, treesize of input 987 treesize of output 2346 [2022-11-20 20:04:04,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:04:05,114 INFO L217 Elim1Store]: Index analysis took 981 ms [2022-11-20 20:04:36,732 WARN L233 SmtUtils]: Spent 31.55s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 20:04:36,739 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-20 20:04:36,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-20 20:06:22,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:06:22,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:22,601 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 29 [2022-11-20 20:06:22,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:22,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-20 20:06:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:22,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-20 20:06:26,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:26,397 INFO L217 Elim1Store]: Index analysis took 181 ms [2022-11-20 20:06:26,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-20 20:06:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:27,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-20 20:06:27,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:27,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-20 20:06:28,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,503 INFO L217 Elim1Store]: Index analysis took 152 ms [2022-11-20 20:06:28,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-20 20:06:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:28,973 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-20 20:06:28,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 362 [2022-11-20 20:06:38,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:38,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-20 20:06:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-20 20:06:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:39,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-20 20:06:40,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-20 20:06:40,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:06:40,673 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-20 20:06:40,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 362 [2022-11-20 20:06:59,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-20 20:07:00,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-20 20:07:00,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-20 20:07:00,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-20 20:07:00,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-20 20:07:00,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-20 20:07:18,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-20 20:07:18,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-20 20:07:18,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-20 20:07:19,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-20 20:07:19,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-20 20:07:19,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-20 20:07:22,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:07:22,550 INFO L350 Elim1Store]: Elim1 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 2375 treesize of output 2365 [2022-11-20 20:07:23,010 INFO L350 Elim1Store]: Elim1 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 2379 treesize of output 2358 [2022-11-20 20:07:23,198 INFO L350 Elim1Store]: Elim1 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 2375 treesize of output 2365 [2022-11-20 20:07:40,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 20:07:40,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:07:40,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:07:40,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 20:07:40,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 20:07:40,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:07:40,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:07:40,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:07:40,804 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:07:40,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 38 [2022-11-20 20:07:40,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:07:40,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:07:40,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:07:40,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 38 [2022-11-20 20:07:40,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:07:40,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:07:41,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:07:41,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-20 20:07:41,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-20 20:07:41,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-20 20:07:41,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-20 20:07:43,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2371 treesize of output 2343 [2022-11-20 20:07:43,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2339 treesize of output 2315 [2022-11-20 20:07:43,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2323 treesize of output 2295 [2022-11-20 20:08:03,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2371 treesize of output 2343 [2022-11-20 20:08:03,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2339 treesize of output 2315 [2022-11-20 20:08:03,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2323 treesize of output 2295 [2022-11-20 20:08:07,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-11-20 20:08:07,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,889 INFO L321 Elim1Store]: treesize reduction 127, result has 18.1 percent of original size [2022-11-20 20:08:07,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 205 treesize of output 204 [2022-11-20 20:08:07,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-11-20 20:08:07,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:08:07,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-20 20:08:07,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-20 20:08:08,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-20 20:08:08,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-20 20:09:05,918 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 73 for LOIs [2022-11-20 20:09:05,943 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_clean_up with input of size 69 for LOIs [2022-11-20 20:09:06,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-20 20:09:06,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-20 20:09:06,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-20 20:09:06,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-20 20:09:07,292 INFO L197 IcfgInterpreter]: Interpreting procedure aws_is_mem_zeroed with input of size 81 for LOIs [2022-11-20 20:09:07,545 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2895 for LOIs [2022-11-20 20:09:20,854 INFO L197 IcfgInterpreter]: Interpreting procedure my_memset with input of size 81 for LOIs [2022-11-20 20:09:20,974 INFO L197 IcfgInterpreter]: Interpreting procedure memset_impl with input of size 81 for LOIs [2022-11-20 20:09:21,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:09:21,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:09:21,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-11-20 20:09:21,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-20 20:09:21,409 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-11-20 20:09:25,585 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 83 for LOIs [2022-11-20 20:09:25,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:09:25,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 20:09:25,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:09:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:09:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:09:25,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:09:25,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-20 20:09:25,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:09:25,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:09:25,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:09:25,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:09:25,882 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:09:25,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-20 20:09:25,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 20:09:26,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 20:09:26,146 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 107 for LOIs [2022-11-20 20:09:26,842 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-11-20 20:09:26,873 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2963 for LOIs [2022-11-20 20:10:48,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 20:10:48,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:10:48,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 20:10:48,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-20 20:11:10,319 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-11-20 20:11:10,322 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 70 for LOIs [2022-11-20 20:11:10,330 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:13:38,700 WARN L233 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 2825 DAG size of output: 2437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)