./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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-8393723 [2022-11-19 07:58:00,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:00,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:00,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:00,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:00,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:00,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:00,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:00,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:00,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:00,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:00,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:00,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:00,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:00,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:00,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:00,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:00,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:00,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:00,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:00,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:00,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:00,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:00,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:00,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:00,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:00,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:00,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:00,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:00,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:00,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:00,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:00,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:00,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:00,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:00,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:00,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:00,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:00,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:00,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:00,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:00,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:58:00,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:00,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:00,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:00,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:00,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:00,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:00,160 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:00,160 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:00,160 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:00,161 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:58:00,161 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:00,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:00,162 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:58:00,162 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:58:00,162 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:00,163 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:58:00,163 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:58:00,163 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:58:00,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:00,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:58:00,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:00,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:00,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:00,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:00,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:00,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:00,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:00,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:00,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:00,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:00,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:00,168 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:58:00,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:00,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:00,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:58:00,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:58:00,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:00,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:00,169 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-19 07:58:00,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:00,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:00,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:00,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:00,443 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:00,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-19 07:58:00,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/6a7275df1/f1b0a625ca3b48c1826332d292f0936c/FLAG6ae0e0ee2 [2022-11-19 07:58:01,266 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:01,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-19 07:58:01,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/6a7275df1/f1b0a625ca3b48c1826332d292f0936c/FLAG6ae0e0ee2 [2022-11-19 07:58:01,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/6a7275df1/f1b0a625ca3b48c1826332d292f0936c [2022-11-19 07:58:01,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:01,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:01,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:01,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:01,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:01,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:01" (1/1) ... [2022-11-19 07:58:01,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50944643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:01, skipping insertion in model container [2022-11-19 07:58:01,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:01" (1/1) ... [2022-11-19 07:58:01,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:01,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:01,907 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-19 07:58:01,914 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-19 07:58:02,616 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,617 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,618 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,619 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,621 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,636 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,637 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,638 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,645 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,655 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,656 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,656 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,657 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:58:02,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:58:02,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:58:02,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:58:02,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:58:02,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:58:02,830 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:58:02,831 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:58:02,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:58:02,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:58:02,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:02,922 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:02,936 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-19 07:58:02,937 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-19 07:58:02,986 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,986 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,987 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,988 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,989 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:02,999 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,000 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,002 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,002 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,008 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,011 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,012 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:03,058 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:58:03,062 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:58:03,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:58:03,066 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:58:03,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:58:03,074 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:58:03,074 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:58:03,076 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:58:03,077 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:58:03,078 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:58:03,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:03,341 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:03,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03 WrapperNode [2022-11-19 07:58:03,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:03,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:03,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:03,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:03,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,511 INFO L138 Inliner]: procedures = 592, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-19 07:58:03,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:03,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:03,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:03,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:03,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:03,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:03,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:03,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:03,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2022-11-19 07:58:03,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:03,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:03,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:03,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:58:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:58:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:58:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:58:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-19 07:58:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-19 07:58:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-19 07:58:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-19 07:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:58:04,008 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:04,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:04,297 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:04,365 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:04,370 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:58:04,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:04 BoogieIcfgContainer [2022-11-19 07:58:04,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:04,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:04,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:04,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:04,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:01" (1/3) ... [2022-11-19 07:58:04,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363fa05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:04, skipping insertion in model container [2022-11-19 07:58:04,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (2/3) ... [2022-11-19 07:58:04,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363fa05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:04, skipping insertion in model container [2022-11-19 07:58:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:04" (3/3) ... [2022-11-19 07:58:04,389 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-19 07:58:04,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:04,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:58:04,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:58:04,488 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;@12dd6971, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:58:04,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:58:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:58:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:58:04,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:04,503 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:04,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1342933705, now seen corresponding path program 1 times [2022-11-19 07:58:04,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:04,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649250577] [2022-11-19 07:58:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:58:05,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:05,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649250577] [2022-11-19 07:58:05,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649250577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:58:05,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795011385] [2022-11-19 07:58:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:05,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:05,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:05,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:05,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:58:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:05,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:58:05,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:58:06,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:58:06,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795011385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:06,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [709392293] [2022-11-19 07:58:06,747 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-19 07:58:06,748 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:58:06,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:58:06,757 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:58:06,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:58:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:06,900 INFO L321 Elim1Store]: treesize reduction 60, result has 33.3 percent of original size [2022-11-19 07:58:06,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 49 [2022-11-19 07:58:06,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:06,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:07,016 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-19 07:58:07,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-19 07:58:08,636 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 137 for LOIs [2022-11-19 07:58:08,758 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 07:58:08,761 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:58:12,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [709392293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:12,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:58:12,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7, 8] total 23 [2022-11-19 07:58:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040900150] [2022-11-19 07:58:12,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:58:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:58:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:58:12,439 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:58:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:12,663 INFO L93 Difference]: Finished difference Result 93 states and 125 transitions. [2022-11-19 07:58:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:58:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2022-11-19 07:58:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:12,677 INFO L225 Difference]: With dead ends: 93 [2022-11-19 07:58:12,677 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 07:58:12,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:58:12,687 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 6 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:12,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 237 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 76 Unchecked, 0.1s Time] [2022-11-19 07:58:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 07:58:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 07:58:12,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:58:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-19 07:58:12,774 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 24 [2022-11-19 07:58:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:12,775 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-19 07:58:12,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:58:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-19 07:58:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 07:58:12,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:12,777 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:12,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:58:12,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1152670264, now seen corresponding path program 1 times [2022-11-19 07:58:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:12,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158735619] [2022-11-19 07:58:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:58:13,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:13,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158735619] [2022-11-19 07:58:13,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158735619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:13,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:13,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:58:13,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185903963] [2022-11-19 07:58:13,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:13,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:58:13,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:58:13,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:13,112 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:58:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:13,170 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2022-11-19 07:58:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:58:13,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2022-11-19 07:58:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:13,175 INFO L225 Difference]: With dead ends: 87 [2022-11-19 07:58:13,175 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 07:58:13,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:13,177 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:13,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 07:58:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-19 07:58:13,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:58:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2022-11-19 07:58:13,219 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 25 [2022-11-19 07:58:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:13,219 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2022-11-19 07:58:13,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:58:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2022-11-19 07:58:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:58:13,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:13,221 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:13,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:58:13,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1319363776, now seen corresponding path program 1 times [2022-11-19 07:58:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:13,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749970548] [2022-11-19 07:58:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 07:58:13,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:13,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749970548] [2022-11-19 07:58:13,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749970548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:58:13,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027046969] [2022-11-19 07:58:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:13,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:13,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:13,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:13,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:58:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:13,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:58:13,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 07:58:14,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 07:58:14,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027046969] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047005262] [2022-11-19 07:58:14,361 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-19 07:58:14,362 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:58:14,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:58:14,367 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:58:14,367 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:58:14,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:14,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:14,452 INFO L321 Elim1Store]: treesize reduction 60, result has 33.3 percent of original size [2022-11-19 07:58:14,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 49 [2022-11-19 07:58:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:14,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:14,542 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-19 07:58:14,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-19 07:58:15,181 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 [2022-11-19 07:58:15,200 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 [2022-11-19 07:58:15,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:15,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2022-11-19 07:58:15,247 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 [2022-11-19 07:58:15,465 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 [2022-11-19 07:58:15,483 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 [2022-11-19 07:58:15,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:58:15,671 INFO L321 Elim1Store]: treesize reduction 224, result has 6.3 percent of original size [2022-11-19 07:58:15,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 593 treesize of output 590 [2022-11-19 07:58:15,779 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 [2022-11-19 07:58:15,866 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 [2022-11-19 07:58:15,877 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 [2022-11-19 07:58:15,887 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 [2022-11-19 07:58:15,899 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 [2022-11-19 07:58:16,163 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 23 for LOIs [2022-11-19 07:58:16,178 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 07:58:16,179 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:58:18,880 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '807#(and (= (mod __VERIFIER_assert_~cond 256) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| Int)) (and (<= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483647) (<= 0 (+ |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483648)) (= (ite (= (ite (= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 0) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:58:18,880 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:58:18,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:58:18,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7] total 14 [2022-11-19 07:58:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736626633] [2022-11-19 07:58:18,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:58:18,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 07:58:18,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:18,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 07:58:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-11-19 07:58:18,883 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-19 07:58:19,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:19,205 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2022-11-19 07:58:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:58:19,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) Word has length 26 [2022-11-19 07:58:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:19,207 INFO L225 Difference]: With dead ends: 60 [2022-11-19 07:58:19,207 INFO L226 Difference]: Without dead ends: 58 [2022-11-19 07:58:19,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:58:19,209 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 66 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:19,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 273 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:58:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-19 07:58:19,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2022-11-19 07:58:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:58:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-11-19 07:58:19,224 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 26 [2022-11-19 07:58:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:19,224 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-11-19 07:58:19,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-19 07:58:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-11-19 07:58:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:58:19,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:19,225 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:19,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:19,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:19,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:19,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash -16112764, now seen corresponding path program 1 times [2022-11-19 07:58:19,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:19,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112640847] [2022-11-19 07:58:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:58:19,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:19,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112640847] [2022-11-19 07:58:19,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112640847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:19,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:19,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:58:19,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660292825] [2022-11-19 07:58:19,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:19,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:58:19,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:19,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:58:19,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:58:19,845 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-19 07:58:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:20,126 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2022-11-19 07:58:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:58:20,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-11-19 07:58:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:20,128 INFO L225 Difference]: With dead ends: 73 [2022-11-19 07:58:20,128 INFO L226 Difference]: Without dead ends: 71 [2022-11-19 07:58:20,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:58:20,129 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:20,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 347 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:58:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-19 07:58:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2022-11-19 07:58:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 36 states have internal predecessors, (39), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:58:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2022-11-19 07:58:20,148 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 30 [2022-11-19 07:58:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:20,148 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2022-11-19 07:58:20,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-19 07:58:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2022-11-19 07:58:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:58:20,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:20,150 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-19 07:58:20,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:58:20,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1067521989, now seen corresponding path program 1 times [2022-11-19 07:58:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:20,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556148824] [2022-11-19 07:58:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:58:20,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:58:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:58:20,325 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:58:20,325 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:58:20,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:58:20,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:58:20,331 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:58:20,335 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:58:20,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:20 BoogieIcfgContainer [2022-11-19 07:58:20,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:58:20,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:58:20,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:58:20,365 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:58:20,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:04" (3/4) ... [2022-11-19 07:58:20,369 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:58:20,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:58:20,370 INFO L158 Benchmark]: Toolchain (without parser) took 18851.86ms. Allocated memory was 130.0MB in the beginning and 310.4MB in the end (delta: 180.4MB). Free memory was 89.5MB in the beginning and 263.3MB in the end (delta: -173.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,370 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 54.7MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:20,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1835.04ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 89.5MB in the beginning and 140.4MB in the end (delta: -50.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.96ms. Allocated memory is still 174.1MB. Free memory was 140.4MB in the beginning and 136.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,371 INFO L158 Benchmark]: Boogie Preprocessor took 94.40ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,371 INFO L158 Benchmark]: RCFGBuilder took 766.85ms. Allocated memory is still 174.1MB. Free memory was 134.1MB in the beginning and 110.1MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,371 INFO L158 Benchmark]: TraceAbstraction took 15984.46ms. Allocated memory was 174.1MB in the beginning and 310.4MB in the end (delta: 136.3MB). Free memory was 110.1MB in the beginning and 264.3MB in the end (delta: -154.3MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,372 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 310.4MB. Free memory was 264.3MB in the beginning and 263.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:20,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 54.7MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1835.04ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 89.5MB in the beginning and 140.4MB in the end (delta: -50.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.96ms. Allocated memory is still 174.1MB. Free memory was 140.4MB in the beginning and 136.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.40ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 766.85ms. Allocated memory is still 174.1MB. Free memory was 134.1MB in the beginning and 110.1MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15984.46ms. Allocated memory was 174.1MB in the beginning and 310.4MB in the end (delta: 136.3MB). Free memory was 110.1MB in the beginning and 264.3MB in the end (delta: -154.3MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 310.4MB. Free memory was 264.3MB in the beginning and 263.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5919] CALL memset_override_0_harness() [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L5909] CALL assume_abort_if_not(c == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5909] RET assume_abort_if_not(c == 0) VAL [c=0, d1={5:0}, d2={4:0}] [L5911] unsigned size = __VERIFIER_nondet_uint(); [L5912] CALL assume_abort_if_not((size & 0x7) == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5912] RET assume_abort_if_not((size & 0x7) == 0) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5913] CALL assume_abort_if_not(size < 160) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5913] RET assume_abort_if_not(size < 160) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5914] CALL memset_impl(d1, c, size) [L5870] CALL assume_abort_if_not((((n) == 0) || (s))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5870] RET assume_abort_if_not((((n) == 0) || (s))) VAL [c=0, n=1, s={5:0}] [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; VAL [c=0, i=0, n=1, s={5:0}, sp={5:0}] [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5873] COND FALSE !(i < n) VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5876] return s; [L5914] RET memset_impl(d1, c, size) [L5915] CALL memset_override_0_impl(d2, c, size) [L5881] CALL assume_abort_if_not((((n) == 0) || (dst))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={4:0}, n=1] [L5883] CALL __VERIFIER_assert(c == 0) VAL [\old(cond)=1] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5883] RET __VERIFIER_assert(c == 0) VAL [c=0, dst={4:0}, n=1] [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; VAL [c=0, dst={4:0}, n=1, num_uint64s=0, rem=1] [L5886] CALL __VERIFIER_assert(rem == 0) VAL [\old(cond)=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L223] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 951 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 76 IncrementalHoareTripleChecker+Unchecked, 748 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 203 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 105 SyntacticMatches, 14 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 751 SizeOfPredicates, 27 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 141/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.8s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 35, TOOLS_QUANTIFIERELIM_TIME: 1.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 45, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 215, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:58:20,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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-8393723 [2022-11-19 07:58:22,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:22,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:22,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:22,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:22,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:22,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:22,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:22,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:22,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:22,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:22,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:22,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:22,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:22,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:22,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:22,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:22,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:22,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:22,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:22,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:22,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:22,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:22,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:22,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:22,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:22,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:22,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:22,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:22,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:22,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:22,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:22,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:22,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:22,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:22,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:22,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:22,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:22,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:22,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:22,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:22,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:58:22,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:22,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:22,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:22,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:22,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:22,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:22,891 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:22,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:22,892 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:22,892 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:22,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:22,894 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:22,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:22,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:22,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:22,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:22,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:22,897 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:58:22,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:58:22,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:58:22,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:22,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:22,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:22,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:22,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:58:22,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:22,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:22,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:22,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:22,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:22,901 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:58:22,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:22,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:22,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:22,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:58:22,907 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-19 07:58:23,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:23,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:23,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:23,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:23,325 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:23,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-19 07:58:23,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/01fbca24f/8c324246eed640cc8ff57f3d277c53e7/FLAGc4eb2aa6e [2022-11-19 07:58:24,146 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:24,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-19 07:58:24,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/01fbca24f/8c324246eed640cc8ff57f3d277c53e7/FLAGc4eb2aa6e [2022-11-19 07:58:24,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/data/01fbca24f/8c324246eed640cc8ff57f3d277c53e7 [2022-11-19 07:58:24,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:24,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:24,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:24,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:24,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:24,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:24" (1/1) ... [2022-11-19 07:58:24,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5685aa28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:24, skipping insertion in model container [2022-11-19 07:58:24,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:24" (1/1) ... [2022-11-19 07:58:24,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:24,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:24,892 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-19 07:58:24,900 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-19 07:58:25,736 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,737 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,738 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,740 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,741 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,770 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,776 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,784 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,788 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,793 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,797 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,801 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,802 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:25,991 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:58:25,992 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:58:25,993 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:58:25,995 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:58:25,996 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:58:25,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:58:25,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:58:25,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:58:25,999 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:58:26,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:58:26,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:26,121 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:58:26,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:26,161 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-19 07:58:26,161 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-19 07:58:26,251 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,252 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,252 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,253 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,253 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,263 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,263 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,264 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,265 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,266 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,267 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,267 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,268 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,314 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:58:26,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:58:26,317 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:58:26,318 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:58:26,319 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:58:26,320 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:58:26,320 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:58:26,321 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:58:26,321 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:58:26,322 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:58:26,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:26,375 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:26,388 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-19 07:58:26,389 WARN L234 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_1daa7ad0-fab1-4c9c-95b1-676ea9323871/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-19 07:58:26,425 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,426 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,426 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,427 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,427 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,434 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,434 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,435 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,436 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,437 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,438 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,438 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,439 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:58:26,457 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:58:26,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:58:26,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:58:26,459 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:58:26,460 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:58:26,461 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:58:26,462 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:58:26,462 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:58:26,463 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:58:26,463 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:58:26,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:26,655 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:26,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26 WrapperNode [2022-11-19 07:58:26,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:26,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:26,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:26,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:26,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,753 INFO L138 Inliner]: procedures = 611, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-19 07:58:26,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:26,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:26,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:26,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:26,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:26,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:26,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:26,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:26,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2022-11-19 07:58:26,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:26,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:26,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:26,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:58:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:58:26,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:58:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:26,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 07:58:26,935 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:58:26,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:58:26,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 07:58:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 07:58:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-19 07:58:26,936 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-19 07:58:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-19 07:58:26,937 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-19 07:58:27,196 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:27,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:27,606 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:27,613 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:27,613 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:58:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:27 BoogieIcfgContainer [2022-11-19 07:58:27,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:27,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:27,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:27,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:27,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:24" (1/3) ... [2022-11-19 07:58:27,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1649d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:27, skipping insertion in model container [2022-11-19 07:58:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (2/3) ... [2022-11-19 07:58:27,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1649d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:27, skipping insertion in model container [2022-11-19 07:58:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:27" (3/3) ... [2022-11-19 07:58:27,625 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-19 07:58:27,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:27,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:58:27,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:58:27,702 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;@1088bc84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:58:27,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:58:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:58:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:58:27,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:27,716 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:27,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-19 07:58:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:27,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563965835] [2022-11-19 07:58:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:27,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:27,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:27,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:27,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:58:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:27,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:58:27,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:58:28,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:28,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:28,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563965835] [2022-11-19 07:58:28,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563965835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:28,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:28,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:58:28,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214443615] [2022-11-19 07:58:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:28,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:58:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:28,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:58:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:28,067 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 07:58:28,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:28,120 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-19 07:58:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:58:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2022-11-19 07:58:28,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:28,137 INFO L225 Difference]: With dead ends: 117 [2022-11-19 07:58:28,137 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 07:58:28,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:28,148 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:28,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:28,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 07:58:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 07:58:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-19 07:58:28,205 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-19 07:58:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:28,205 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-19 07:58:28,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 07:58:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-19 07:58:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:58:28,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:28,208 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:28,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:28,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:28,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:28,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-19 07:58:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:28,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765267262] [2022-11-19 07:58:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:28,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:28,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:28,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:28,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:58:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:28,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:58:28,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:28,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:28,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:28,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765267262] [2022-11-19 07:58:28,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765267262] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:28,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [737772677] [2022-11-19 07:58:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:28,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:28,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:29,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:29,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:58:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:29,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:29,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:29,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:29,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [737772677] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:29,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093800420] [2022-11-19 07:58:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:29,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:29,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:29,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:29,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:58:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:29,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:58:29,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:58:29,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:29,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093800420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:29,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:58:29,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 9] total 12 [2022-11-19 07:58:29,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692962027] [2022-11-19 07:58:29,843 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:58:29,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:58:29,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:29,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:58:29,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:58:29,847 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:58:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:30,112 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-19 07:58:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:58:30,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 36 [2022-11-19 07:58:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:30,115 INFO L225 Difference]: With dead ends: 58 [2022-11-19 07:58:30,115 INFO L226 Difference]: Without dead ends: 56 [2022-11-19 07:58:30,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:58:30,117 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 68 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:30,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 251 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:58:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-19 07:58:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-19 07:58:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-19 07:58:30,133 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-19 07:58:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:30,135 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-19 07:58:30,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:58:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-19 07:58:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 07:58:30,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:30,141 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-19 07:58:30,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:30,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:30,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-19 07:58:30,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:30,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:30,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:30,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-19 07:58:30,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:30,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998140916] [2022-11-19 07:58:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:30,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:30,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:30,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:30,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:58:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:30,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:30,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:31,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:31,516 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998140916] [2022-11-19 07:58:31,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998140916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1024072055] [2022-11-19 07:58:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:31,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:31,518 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:31,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 07:58:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:31,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:31,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:58:32,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:32,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1024072055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:32,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:58:32,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 17 [2022-11-19 07:58:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678462321] [2022-11-19 07:58:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:32,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:58:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:58:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:58:32,106 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-19 07:58:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:32,434 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-19 07:58:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:58:32,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-11-19 07:58:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:32,437 INFO L225 Difference]: With dead ends: 83 [2022-11-19 07:58:32,437 INFO L226 Difference]: Without dead ends: 81 [2022-11-19 07:58:32,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:58:32,438 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 40 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:32,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 497 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 23 Unchecked, 0.2s Time] [2022-11-19 07:58:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-19 07:58:32,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2022-11-19 07:58:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.119047619047619) internal successors, (47), 44 states have internal predecessors, (47), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:58:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2022-11-19 07:58:32,455 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 42 [2022-11-19 07:58:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:32,455 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2022-11-19 07:58:32,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-19 07:58:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2022-11-19 07:58:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 07:58:32,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:32,457 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-19 07:58:32,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:32,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:32,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:32,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:32,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:32,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148702, now seen corresponding path program 1 times [2022-11-19 07:58:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:32,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893355476] [2022-11-19 07:58:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:32,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:32,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 07:58:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:32,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:32,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:33,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:33,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:33,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893355476] [2022-11-19 07:58:33,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893355476] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:33,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [281743426] [2022-11-19 07:58:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:33,591 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:33,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:33,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:33,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-19 07:58:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:33,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:58:33,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:33,817 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:58:33,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:33,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [281743426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:33,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:58:33,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2022-11-19 07:58:33,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350256610] [2022-11-19 07:58:33,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:33,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:58:33,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:33,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:58:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:58:33,819 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:58:33,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:33,860 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2022-11-19 07:58:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:58:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-19 07:58:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:33,865 INFO L225 Difference]: With dead ends: 113 [2022-11-19 07:58:33,865 INFO L226 Difference]: Without dead ends: 68 [2022-11-19 07:58:33,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:58:33,867 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:33,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:33,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-19 07:58:33,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-19 07:58:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:58:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2022-11-19 07:58:33,879 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 43 [2022-11-19 07:58:33,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:33,879 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2022-11-19 07:58:33,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:58:33,880 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2022-11-19 07:58:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 07:58:33,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:33,881 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-19 07:58:33,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:34,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:34,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:34,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash 982661572, now seen corresponding path program 1 times [2022-11-19 07:58:34,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:34,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957521981] [2022-11-19 07:58:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:34,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:34,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:34,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:34,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 07:58:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:34,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:34,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 07:58:34,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 07:58:34,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:34,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957521981] [2022-11-19 07:58:34,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957521981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:34,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1437960243] [2022-11-19 07:58:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:34,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:34,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:34,983 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:35,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-19 07:58:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:35,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:58:35,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 07:58:35,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:36,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1437960243] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:36,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84513616] [2022-11-19 07:58:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:36,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:36,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:36,284 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:36,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 07:58:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:36,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:36,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 07:58:36,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:37,182 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:58:37,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84513616] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:37,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:58:37,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 23 [2022-11-19 07:58:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483601868] [2022-11-19 07:58:37,183 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:58:37,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-19 07:58:37,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:37,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-19 07:58:37,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:58:37,185 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-19 07:58:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:38,438 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2022-11-19 07:58:38,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 07:58:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 45 [2022-11-19 07:58:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:38,440 INFO L225 Difference]: With dead ends: 135 [2022-11-19 07:58:38,440 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 07:58:38,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 242 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:58:38,444 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:38,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 911 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 48 Unchecked, 0.5s Time] [2022-11-19 07:58:38,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 07:58:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2022-11-19 07:58:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2022-11-19 07:58:38,460 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 45 [2022-11-19 07:58:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:38,460 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2022-11-19 07:58:38,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-19 07:58:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2022-11-19 07:58:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-19 07:58:38,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:38,462 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2022-11-19 07:58:38,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:38,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:38,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:39,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:39,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:39,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2022-11-19 07:58:39,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:39,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432979893] [2022-11-19 07:58:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:39,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:39,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:39,066 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:39,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 07:58:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:39,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:58:39,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-19 07:58:39,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:39,387 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432979893] [2022-11-19 07:58:39,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432979893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:39,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:39,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:58:39,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282312689] [2022-11-19 07:58:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:39,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:58:39,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:58:39,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:58:39,390 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 07:58:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:39,533 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2022-11-19 07:58:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:58:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2022-11-19 07:58:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:39,535 INFO L225 Difference]: With dead ends: 71 [2022-11-19 07:58:39,535 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:58:39,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:58:39,538 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:39,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 249 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:58:39,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:58:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-19 07:58:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 48 states have internal predecessors, (52), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-19 07:58:39,551 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 51 [2022-11-19 07:58:39,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:39,552 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-19 07:58:39,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 07:58:39,552 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2022-11-19 07:58:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 07:58:39,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:39,554 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:39,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:39,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:39,767 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:39,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2022-11-19 07:58:39,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:39,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108196278] [2022-11-19 07:58:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:39,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:39,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:39,769 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:39,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-19 07:58:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:39,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:58:39,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:58:40,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-19 07:58:40,280 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:40,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108196278] [2022-11-19 07:58:40,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108196278] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 07:58:40,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:58:40,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-19 07:58:40,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430810801] [2022-11-19 07:58:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:40,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:58:40,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:40,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:58:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:58:40,282 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-19 07:58:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:40,440 INFO L93 Difference]: Finished difference Result 112 states and 131 transitions. [2022-11-19 07:58:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:58:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 68 [2022-11-19 07:58:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:40,452 INFO L225 Difference]: With dead ends: 112 [2022-11-19 07:58:40,452 INFO L226 Difference]: Without dead ends: 84 [2022-11-19 07:58:40,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:58:40,455 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 29 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:40,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 224 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:58:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-19 07:58:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2022-11-19 07:58:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 57 states have internal predecessors, (62), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-19 07:58:40,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 98 transitions. [2022-11-19 07:58:40,485 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 98 transitions. Word has length 68 [2022-11-19 07:58:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:40,486 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 98 transitions. [2022-11-19 07:58:40,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-19 07:58:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 98 transitions. [2022-11-19 07:58:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 07:58:40,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:40,488 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:40,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:40,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:40,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:40,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2022-11-19 07:58:40,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:40,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535283683] [2022-11-19 07:58:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:40,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:40,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:40,707 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:40,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 07:58:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:40,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:58:40,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:58:41,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-19 07:58:41,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:41,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535283683] [2022-11-19 07:58:41,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535283683] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 07:58:41,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:58:41,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-11-19 07:58:41,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182397555] [2022-11-19 07:58:41,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:41,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:58:41,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:41,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:58:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:58:41,372 INFO L87 Difference]: Start difference. First operand 82 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-19 07:58:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:41,541 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2022-11-19 07:58:41,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:58:41,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 72 [2022-11-19 07:58:41,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:41,543 INFO L225 Difference]: With dead ends: 104 [2022-11-19 07:58:41,543 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:58:41,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:58:41,544 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 28 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:41,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 250 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:58:41,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:58:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-19 07:58:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-19 07:58:41,562 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 72 [2022-11-19 07:58:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:41,562 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-19 07:58:41,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-19 07:58:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-19 07:58:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:58:41,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:41,565 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:41,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:41,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:41,775 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash 511671837, now seen corresponding path program 1 times [2022-11-19 07:58:41,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:41,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457792150] [2022-11-19 07:58:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:41,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:41,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:41,778 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:41,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-19 07:58:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:41,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 07:58:41,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:58:42,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-19 07:58:43,118 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457792150] [2022-11-19 07:58:43,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457792150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:43,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [743912282] [2022-11-19 07:58:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:43,123 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-19 07:58:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:43,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:58:43,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 35 proven. 15 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 07:58:44,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-19 07:58:44,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [743912282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:44,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37600304] [2022-11-19 07:58:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:44,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:44,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:44,843 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:44,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-19 07:58:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:44,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 07:58:44,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 07:58:45,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 07:58:46,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37600304] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:46,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:58:46,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11, 11, 11, 10] total 39 [2022-11-19 07:58:46,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934871797] [2022-11-19 07:58:46,039 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:58:46,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-19 07:58:46,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:46,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-19 07:58:46,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1253, Unknown=0, NotChecked=0, Total=1482 [2022-11-19 07:58:46,042 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-19 07:58:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:49,069 INFO L93 Difference]: Finished difference Result 132 states and 152 transitions. [2022-11-19 07:58:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 07:58:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 75 [2022-11-19 07:58:49,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:49,071 INFO L225 Difference]: With dead ends: 132 [2022-11-19 07:58:49,071 INFO L226 Difference]: Without dead ends: 79 [2022-11-19 07:58:49,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=552, Invalid=2528, Unknown=0, NotChecked=0, Total=3080 [2022-11-19 07:58:49,073 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 91 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:49,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 567 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 297 Invalid, 0 Unknown, 32 Unchecked, 1.1s Time] [2022-11-19 07:58:49,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-19 07:58:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2022-11-19 07:58:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 57 states have internal predecessors, (60), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:58:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-11-19 07:58:49,095 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 75 [2022-11-19 07:58:49,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:49,095 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-11-19 07:58:49,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-19 07:58:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-11-19 07:58:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 07:58:49,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:49,102 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:49,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:49,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:49,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:49,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2075883641, now seen corresponding path program 1 times [2022-11-19 07:58:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:49,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942120735] [2022-11-19 07:58:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:49,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:49,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:49,710 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:49,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 07:58:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:49,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:58:49,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 07:58:50,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 9 proven. 61 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-19 07:58:52,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:52,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942120735] [2022-11-19 07:58:52,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942120735] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:52,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [284509645] [2022-11-19 07:58:52,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:52,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:52,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:58:52,470 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:58:52,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-19 07:58:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:52,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 07:58:52,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 49 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-19 07:58:54,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:58:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 7 proven. 49 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-19 07:58:56,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [284509645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:58:56,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745887832] [2022-11-19 07:58:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:56,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:56,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:56,897 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:58:56,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-19 07:58:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:57,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:58:57,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 07:58:58,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:59:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-19 07:59:04,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745887832] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:59:04,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:59:04,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14, 14, 16, 18] total 75 [2022-11-19 07:59:04,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964338691] [2022-11-19 07:59:04,668 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:59:04,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-19 07:59:04,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:59:04,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-19 07:59:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4839, Unknown=0, NotChecked=0, Total=5550 [2022-11-19 07:59:04,672 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-19 07:59:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:32,816 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2022-11-19 07:59:32,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-19 07:59:32,818 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 85 [2022-11-19 07:59:32,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:32,820 INFO L225 Difference]: With dead ends: 196 [2022-11-19 07:59:32,820 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 07:59:32,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 3202 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=1488, Invalid=9224, Unknown=0, NotChecked=0, Total=10712 [2022-11-19 07:59:32,824 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 410 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:32,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1802 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1283 Invalid, 0 Unknown, 153 Unchecked, 6.8s Time] [2022-11-19 07:59:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 07:59:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 105. [2022-11-19 07:59:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.15) internal successors, (92), 81 states have internal predecessors, (92), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:59:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2022-11-19 07:59:32,866 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 85 [2022-11-19 07:59:32,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:32,866 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2022-11-19 07:59:32,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-19 07:59:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2022-11-19 07:59:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 07:59:32,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:32,868 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:32,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:33,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:33,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:33,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:59:33,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:33,472 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 2 times [2022-11-19 07:59:33,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:59:33,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492036988] [2022-11-19 07:59:33,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:59:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:59:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:59:33,474 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:59:33,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-19 07:59:34,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:59:34,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:59:34,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-19 07:59:34,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:34,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 07:59:34,907 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 14 treesize of output 10 [2022-11-19 07:59:35,328 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 26 treesize of output 25 [2022-11-19 07:59:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:35,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:35,774 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 33 treesize of output 35 [2022-11-19 07:59:36,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-11-19 07:59:36,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:36,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-19 07:59:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:37,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 07:59:38,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-19 07:59:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-11-19 07:59:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:43,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:43,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 173 [2022-11-19 07:59:50,911 INFO L321 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-19 07:59:50,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-19 07:59:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 07:59:51,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:59:52,187 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:59:52,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492036988] [2022-11-19 07:59:52,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492036988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:59:52,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1875407325] [2022-11-19 07:59:52,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:59:52,188 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:59:52,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:59:52,189 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:59:52,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-19 07:59:53,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:59:53,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:59:53,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-19 07:59:53,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:53,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 07:59:55,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:55,077 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 22 treesize of output 21 [2022-11-19 07:59:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:55,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:55,765 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-19 07:59:55,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:59:56,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:56,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:56,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:56,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:56,644 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:59:56,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:59:57,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:57,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:57,731 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:59:57,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2022-11-19 07:59:59,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:59,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:59,032 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:59:59,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 08:00:00,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:00,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:00,362 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:00:00,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 74 treesize of output 88 [2022-11-19 08:00:01,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:01,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:01,684 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:00:01,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 97 [2022-11-19 08:00:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:03,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:03,151 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:00:03,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 102 [2022-11-19 08:00:11,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:11,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:11,386 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-19 08:00:11,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 57 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 183 [2022-11-19 08:00:20,909 INFO L321 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-11-19 08:00:20,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 29 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 34 case distinctions, treesize of input 134 treesize of output 64 [2022-11-19 08:00:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 08:00:20,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1875407325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:00:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791364242] [2022-11-19 08:00:21,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:00:21,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:00:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:21,004 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:00:21,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-19 08:00:21,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:00:21,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:00:21,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 103 conjunts are in the unsatisfiable core [2022-11-19 08:00:21,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:21,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:00:21,880 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 14 treesize of output 10 [2022-11-19 08:00:22,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:22,722 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 23 treesize of output 22 [2022-11-19 08:00:23,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,090 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 33 treesize of output 35 [2022-11-19 08:00:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-11-19 08:00:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:23,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-19 08:00:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 08:00:24,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:24,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-19 08:00:25,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:25,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-11-19 08:00:32,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:32,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:32,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 198 [2022-11-19 08:00:39,640 INFO L321 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-19 08:00:39,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-19 08:00:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 08:00:39,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:39,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791364242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:00:39,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:00:39,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37, 40] total 81 [2022-11-19 08:00:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164499272] [2022-11-19 08:00:39,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:00:39,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-11-19 08:00:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:39,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-11-19 08:00:39,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=6899, Unknown=0, NotChecked=0, Total=7310 [2022-11-19 08:00:39,740 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand has 81 states, 77 states have (on average 1.6233766233766234) internal successors, (125), 76 states have internal predecessors, (125), 14 states have call successors, (24), 7 states have call predecessors, (24), 10 states have return successors, (23), 14 states have call predecessors, (23), 13 states have call successors, (23) [2022-11-19 08:01:29,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:31,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:37,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:37,514 INFO L93 Difference]: Finished difference Result 218 states and 247 transitions. [2022-11-19 08:01:37,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-19 08:01:37,515 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 77 states have (on average 1.6233766233766234) internal successors, (125), 76 states have internal predecessors, (125), 14 states have call successors, (24), 7 states have call predecessors, (24), 10 states have return successors, (23), 14 states have call predecessors, (23), 13 states have call successors, (23) Word has length 87 [2022-11-19 08:01:37,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:37,517 INFO L225 Difference]: With dead ends: 218 [2022-11-19 08:01:37,517 INFO L226 Difference]: Without dead ends: 180 [2022-11-19 08:01:37,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 153 SyntacticMatches, 41 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6438 ImplicationChecksByTransitivity, 62.9s TimeCoverageRelationStatistics Valid=1053, Invalid=14697, Unknown=0, NotChecked=0, Total=15750 [2022-11-19 08:01:37,523 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 231 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 72 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 700 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:37,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1383 Invalid, 3151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2378 Invalid, 1 Unknown, 700 Unchecked, 39.2s Time] [2022-11-19 08:01:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-19 08:01:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 158. [2022-11-19 08:01:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 118 states have (on average 1.11864406779661) internal successors, (132), 120 states have internal predecessors, (132), 25 states have call successors, (25), 15 states have call predecessors, (25), 14 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-19 08:01:37,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2022-11-19 08:01:37,606 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 87 [2022-11-19 08:01:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:37,606 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2022-11-19 08:01:37,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 77 states have (on average 1.6233766233766234) internal successors, (125), 76 states have internal predecessors, (125), 14 states have call successors, (24), 7 states have call predecessors, (24), 10 states have return successors, (23), 14 states have call predecessors, (23), 13 states have call successors, (23) [2022-11-19 08:01:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2022-11-19 08:01:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:01:37,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:37,608 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:37,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:37,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-19 08:01:38,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:38,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:38,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash 865156450, now seen corresponding path program 1 times [2022-11-19 08:01:38,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:38,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616932851] [2022-11-19 08:01:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:38,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:38,232 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:38,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 08:01:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:38,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:01:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-19 08:01:38,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:38,938 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:38,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616932851] [2022-11-19 08:01:38,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616932851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:38,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:38,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:01:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783605033] [2022-11-19 08:01:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:38,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:01:38,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:01:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:01:38,942 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-19 08:01:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:39,158 INFO L93 Difference]: Finished difference Result 180 states and 201 transitions. [2022-11-19 08:01:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:01:39,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2022-11-19 08:01:39,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:39,160 INFO L225 Difference]: With dead ends: 180 [2022-11-19 08:01:39,160 INFO L226 Difference]: Without dead ends: 158 [2022-11-19 08:01:39,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:01:39,161 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 15 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:39,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 213 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 16 Unchecked, 0.1s Time] [2022-11-19 08:01:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-19 08:01:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-11-19 08:01:39,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 118 states have (on average 1.1016949152542372) internal successors, (130), 120 states have internal predecessors, (130), 25 states have call successors, (25), 15 states have call predecessors, (25), 14 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-19 08:01:39,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2022-11-19 08:01:39,228 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 91 [2022-11-19 08:01:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:39,228 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2022-11-19 08:01:39,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-19 08:01:39,229 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2022-11-19 08:01:39,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:01:39,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:39,230 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 4, 3, 3, 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] [2022-11-19 08:01:39,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:39,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:39,448 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1597024941, now seen corresponding path program 3 times [2022-11-19 08:01:39,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:39,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682137608] [2022-11-19 08:01:39,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:01:39,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:39,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:39,450 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:39,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-19 08:01:40,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-19 08:01:40,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:01:40,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-19 08:01:40,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 08:01:41,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 12 proven. 85 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:01:45,493 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:45,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682137608] [2022-11-19 08:01:45,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682137608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:45,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [817981953] [2022-11-19 08:01:45,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:01:45,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:45,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:45,496 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:45,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-19 08:01:47,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-19 08:01:47,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:01:47,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 08:01:47,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 35 proven. 81 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-19 08:01:49,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:01:56,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [817981953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92659366] [2022-11-19 08:01:56,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:01:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:56,944 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:01:56,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-19 08:04:18,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-19 08:04:18,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:04:18,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 08:04:18,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 08:04:19,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:04:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:04:20,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92659366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:04:20,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:04:20,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24, 19, 24, 22, 24] total 77 [2022-11-19 08:04:20,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376685109] [2022-11-19 08:04:20,319 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:04:20,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-19 08:04:20,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:20,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-19 08:04:20,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=4939, Unknown=0, NotChecked=0, Total=5852 [2022-11-19 08:04:20,323 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-19 08:04:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:51,417 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2022-11-19 08:04:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-19 08:04:51,419 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) Word has length 91 [2022-11-19 08:04:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:51,421 INFO L225 Difference]: With dead ends: 256 [2022-11-19 08:04:51,421 INFO L226 Difference]: Without dead ends: 190 [2022-11-19 08:04:51,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 465 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3524 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=2532, Invalid=10578, Unknown=0, NotChecked=0, Total=13110 [2022-11-19 08:04:51,426 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 808 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:51,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1357 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 2492 Invalid, 0 Unknown, 104 Unchecked, 11.6s Time] [2022-11-19 08:04:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-19 08:04:51,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 162. [2022-11-19 08:04:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 122 states have (on average 1.0737704918032787) internal successors, (131), 125 states have internal predecessors, (131), 25 states have call successors, (25), 15 states have call predecessors, (25), 14 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-19 08:04:51,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 179 transitions. [2022-11-19 08:04:51,490 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 179 transitions. Word has length 91 [2022-11-19 08:04:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:51,492 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 179 transitions. [2022-11-19 08:04:51,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-19 08:04:51,492 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 179 transitions. [2022-11-19 08:04:51,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-19 08:04:51,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:51,494 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 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] [2022-11-19 08:04:51,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:51,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:51,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:52,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:04:52,102 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:52,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:52,102 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2022-11-19 08:04:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:52,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322343397] [2022-11-19 08:04:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:52,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:52,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:52,105 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:04:52,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 08:04:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:52,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-19 08:04:52,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:54,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:04:54,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:04:54,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-19 08:05:00,445 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-19 08:05:00,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-19 08:05:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 08:05:00,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:05:01,170 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:05:01,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322343397] [2022-11-19 08:05:01,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322343397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:01,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1860628682] [2022-11-19 08:05:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:01,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:05:01,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:05:01,172 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:05:01,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-19 08:05:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:02,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-19 08:05:02,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:04,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:04,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:04,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-19 08:05:09,185 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-19 08:05:09,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-19 08:05:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 08:05:09,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:05:09,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1860628682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:09,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954770459] [2022-11-19 08:05:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:09,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:09,279 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:09,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-19 08:05:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:09,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-19 08:05:09,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:11,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:05:11,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 104 [2022-11-19 08:05:17,098 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-19 08:05:17,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-19 08:05:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-19 08:05:17,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:05:17,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954770459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:17,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:05:17,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 27] total 52 [2022-11-19 08:05:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106825530] [2022-11-19 08:05:17,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:05:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-19 08:05:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:05:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-19 08:05:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=2899, Unknown=0, NotChecked=0, Total=3192 [2022-11-19 08:05:17,180 INFO L87 Difference]: Start difference. First operand 162 states and 179 transitions. Second operand has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-19 08:05:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:34,610 INFO L93 Difference]: Finished difference Result 206 states and 228 transitions. [2022-11-19 08:05:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-19 08:05:34,611 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 108 [2022-11-19 08:05:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:34,612 INFO L225 Difference]: With dead ends: 206 [2022-11-19 08:05:34,612 INFO L226 Difference]: Without dead ends: 128 [2022-11-19 08:05:34,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 250 SyntacticMatches, 36 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2986 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=822, Invalid=6488, Unknown=0, NotChecked=0, Total=7310 [2022-11-19 08:05:34,614 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 385 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 173 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:34,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 702 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1201 Invalid, 0 Unknown, 173 Unchecked, 11.0s Time] [2022-11-19 08:05:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-19 08:05:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 114. [2022-11-19 08:05:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 90 states have (on average 1.0444444444444445) internal successors, (94), 91 states have internal predecessors, (94), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:05:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2022-11-19 08:05:34,682 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 108 [2022-11-19 08:05:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:34,682 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2022-11-19 08:05:34,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-19 08:05:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2022-11-19 08:05:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-19 08:05:34,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:34,686 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 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] [2022-11-19 08:05:34,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:34,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:35,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-19 08:05:35,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:05:35,295 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 4 times [2022-11-19 08:05:35,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:05:35,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413524958] [2022-11-19 08:05:35,296 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:05:35,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:05:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:05:35,297 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:05:35,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-19 08:05:37,801 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:05:37,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:05:37,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-19 08:05:37,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:38,321 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 14 treesize of output 10 [2022-11-19 08:05:38,650 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 26 treesize of output 25 [2022-11-19 08:05:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,033 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 33 treesize of output 35 [2022-11-19 08:05:39,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:39,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-11-19 08:05:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2022-11-19 08:05:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:40,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 77 [2022-11-19 08:05:41,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:41,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2022-11-19 08:05:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:42,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 101 [2022-11-19 08:05:43,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 113 [2022-11-19 08:05:43,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:43,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-19 08:05:45,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:45,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 140 [2022-11-19 08:05:46,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:46,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 154 [2022-11-19 08:05:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:47,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 165 [2022-11-19 08:05:48,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:48,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 179 [2022-11-19 08:05:49,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:49,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 193 [2022-11-19 08:05:51,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:51,398 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:05:51,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 150 treesize of output 191 [2022-11-19 08:06:00,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:00,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:00,493 INFO L321 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-19 08:06:00,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 148 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 128 case distinctions, treesize of input 222 treesize of output 294 [2022-11-19 08:06:03,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:03,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:03,954 INFO L321 Elim1Store]: treesize reduction 216, result has 25.3 percent of original size [2022-11-19 08:06:03,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 127 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 284 case distinctions, treesize of input 300 treesize of output 396 [2022-11-19 08:06:15,524 INFO L321 Elim1Store]: treesize reduction 770, result has 0.9 percent of original size [2022-11-19 08:06:15,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 120 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 239 treesize of output 109 [2022-11-19 08:06:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 284 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 08:06:16,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:06:17,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:06:17,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413524958] [2022-11-19 08:06:17,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413524958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:06:17,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [247712647] [2022-11-19 08:06:17,464 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:06:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:06:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:06:17,467 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:06:17,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2022-11-19 08:06:25,213 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:06:25,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:06:25,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-19 08:06:25,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:06:25,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:06:27,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:27,839 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 22 treesize of output 21 [2022-11-19 08:06:28,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:28,751 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-19 08:06:28,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2022-11-19 08:06:29,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:29,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:29,817 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:29,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2022-11-19 08:06:30,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:30,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:30,968 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:30,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 59 [2022-11-19 08:06:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:32,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:32,241 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:32,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 71 [2022-11-19 08:06:33,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:33,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:33,534 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:33,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2022-11-19 08:06:35,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:35,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:35,050 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:35,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 98 [2022-11-19 08:06:36,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:36,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:36,666 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:36,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 90 treesize of output 110 [2022-11-19 08:06:38,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:38,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:38,338 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:38,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 123 [2022-11-19 08:06:40,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:40,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:40,077 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:40,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 136 [2022-11-19 08:06:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:41,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:41,995 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:41,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 149 [2022-11-19 08:06:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:44,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:44,180 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:44,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 11 case distinctions, treesize of input 131 treesize of output 163 [2022-11-19 08:06:46,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:46,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:46,517 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:46,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 12 case distinctions, treesize of input 140 treesize of output 175 [2022-11-19 08:06:48,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:48,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:48,845 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:48,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 13 case distinctions, treesize of input 150 treesize of output 188 [2022-11-19 08:06:51,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:51,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:51,356 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:51,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 14 case distinctions, treesize of input 160 treesize of output 201 [2022-11-19 08:06:53,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:53,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:54,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:06:54,075 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:06:54,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 15 case distinctions, treesize of input 155 treesize of output 199 [2022-11-19 08:07:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:09,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:09,559 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-19 08:07:09,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 150 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 229 treesize of output 304 [2022-11-19 08:07:16,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:16,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:07:16,501 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 08:07:16,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 25 select indices, 25 select index equivalence classes, 241 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 24 case distinctions, treesize of input 284 treesize of output 383 [2022-11-19 08:07:35,179 INFO L321 Elim1Store]: treesize reduction 290, result has 2.4 percent of original size [2022-11-19 08:07:35,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 35 select indices, 35 select index equivalence classes, 121 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 66 case distinctions, treesize of input 246 treesize of output 112 [2022-11-19 08:07:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 41 proven. 278 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 08:07:35,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:07:35,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [247712647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:07:35,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128428142] [2022-11-19 08:07:35,289 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:07:35,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:07:35,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:07:35,291 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:07:35,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daa7ad0-fab1-4c9c-95b1-676ea9323871/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-19 08:07:35,787 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:07:35,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:07:35,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 155 conjunts are in the unsatisfiable core [2022-11-19 08:07:35,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:35,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:07:39,433 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 14 treesize of output 10 [2022-11-19 08:07:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:40,662 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 23 treesize of output 22 [2022-11-19 08:07:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:42,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:42,324 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 [2022-11-19 08:07:43,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:43,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:43,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:43,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:43,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:43,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-19 08:07:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-11-19 08:07:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:47,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 08:07:49,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:49,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-19 08:07:52,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:52,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 102 [2022-11-19 08:07:54,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 116 [2022-11-19 08:07:57,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:57,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-19 08:07:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:59,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 139 [2022-11-19 08:08:02,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:02,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 153 [2022-11-19 08:08:05,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:05,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 167 [2022-11-19 08:08:08,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:08,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 178 [2022-11-19 08:08:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:11,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 192 [2022-11-19 08:08:15,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:15,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 188 [2022-11-19 08:08:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:29,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:29,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 149 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 294 [2022-11-19 08:08:35,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:35,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:35,439 INFO L217 Elim1Store]: Index analysis took 162 ms [2022-11-19 08:08:35,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 241 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 396 [2022-11-19 08:09:06,177 INFO L321 Elim1Store]: treesize reduction 250, result has 2.7 percent of original size [2022-11-19 08:09:06,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 121 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 32 case distinctions, treesize of input 239 treesize of output 109 [2022-11-19 08:09:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 35 proven. 284 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 08:09:06,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:06,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128428142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:06,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:06,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55, 58] total 160 [2022-11-19 08:09:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283061851] [2022-11-19 08:09:06,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:06,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 160 states [2022-11-19 08:09:06,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:06,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2022-11-19 08:09:06,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=886, Invalid=26174, Unknown=0, NotChecked=0, Total=27060 [2022-11-19 08:09:06,289 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand has 160 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 152 states have internal predecessors, (203), 20 states have call successors, (31), 7 states have call predecessors, (31), 11 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-11-19 08:10:28,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:45,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:49,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:52,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:03,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:06,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:36,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:39,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:40,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:42,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:44,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:45,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:47,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:48,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:50,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:52,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:54,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:55,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:58,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:00,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:02,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:03,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:05,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:07,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:08,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:10,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:12,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:14,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:16,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:18,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:19,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:21,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:23,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:25,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:26,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:28,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:29,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:31,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:33,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:34,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:36,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:38,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:40,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:41,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:43,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []