./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-4e7fbc6 [2022-11-23 04:02:30,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 04:02:30,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 04:02:31,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 04:02:31,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 04:02:31,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 04:02:31,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 04:02:31,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 04:02:31,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 04:02:31,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 04:02:31,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 04:02:31,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 04:02:31,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 04:02:31,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 04:02:31,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 04:02:31,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 04:02:31,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 04:02:31,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 04:02:31,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 04:02:31,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 04:02:31,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 04:02:31,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 04:02:31,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 04:02:31,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 04:02:31,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 04:02:31,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 04:02:31,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 04:02:31,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 04:02:31,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 04:02:31,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 04:02:31,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 04:02:31,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 04:02:31,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 04:02:31,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 04:02:31,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 04:02:31,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 04:02:31,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 04:02:31,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 04:02:31,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 04:02:31,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 04:02:31,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 04:02:31,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 04:02:31,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 04:02:31,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 04:02:31,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 04:02:31,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 04:02:31,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 04:02:31,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 04:02:31,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 04:02:31,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 04:02:31,124 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 04:02:31,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 04:02:31,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 04:02:31,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 04:02:31,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 04:02:31,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 04:02:31,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 04:02:31,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 04:02:31,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 04:02:31,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 04:02:31,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 04:02:31,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 04:02:31,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 04:02:31,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:02:31,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 04:02:31,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 04:02:31,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 04:02:31,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 04:02:31,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 04:02:31,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 04:02:31,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 04:02:31,132 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 04:02:31,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 04:02:31,132 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-23 04:02:31,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 04:02:31,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 04:02:31,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 04:02:31,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 04:02:31,492 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 04:02:31,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-23 04:02:34,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 04:02:34,994 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 04:02:34,995 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-23 04:02:35,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/ca4c73245/6b1be38ad27e4a0e93e21ebe8f1308d3/FLAG3986de8f5 [2022-11-23 04:02:35,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/ca4c73245/6b1be38ad27e4a0e93e21ebe8f1308d3 [2022-11-23 04:02:35,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 04:02:35,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 04:02:35,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 04:02:35,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 04:02:35,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 04:02:35,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:35" (1/1) ... [2022-11-23 04:02:35,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e84a545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:35, skipping insertion in model container [2022-11-23 04:02:35,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:35" (1/1) ... [2022-11-23 04:02:35,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 04:02:35,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 04:02:35,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-23 04:02:35,436 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-23 04:02:36,077 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,078 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,078 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,079 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,080 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,102 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,103 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,105 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,108 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,120 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,121 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,121 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,335 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 04:02:36,340 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 04:02:36,345 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 04:02:36,347 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 04:02:36,349 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 04:02:36,350 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 04:02:36,353 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 04:02:36,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 04:02:36,357 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 04:02:36,358 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 04:02:36,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:02:36,471 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 04:02:36,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-23 04:02:36,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-23 04:02:36,547 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,548 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,548 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,549 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,550 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,559 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,560 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,560 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,562 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,563 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,563 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,564 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:36,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 04:02:36,600 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 04:02:36,601 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 04:02:36,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 04:02:36,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 04:02:36,604 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 04:02:36,605 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 04:02:36,606 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 04:02:36,606 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 04:02:36,607 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 04:02:36,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:02:36,846 INFO L208 MainTranslator]: Completed translation [2022-11-23 04:02:36,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36 WrapperNode [2022-11-23 04:02:36,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 04:02:36,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 04:02:36,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 04:02:36,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 04:02:36,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:36,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:36,979 INFO L138 Inliner]: procedures = 592, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-23 04:02:36,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 04:02:36,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 04:02:36,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 04:02:36,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 04:02:36,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:36,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:36,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:36,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 04:02:37,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 04:02:37,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 04:02:37,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 04:02:37,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (1/1) ... [2022-11-23 04:02:37,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:02:37,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 04:02:37,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 04:02:37,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 04:02:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 04:02:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 04:02:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 04:02:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 04:02:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 04:02:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 04:02:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 04:02:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 04:02:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 04:02:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 04:02:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-23 04:02:37,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-23 04:02:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 04:02:37,119 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 04:02:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 04:02:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 04:02:37,386 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 04:02:37,388 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 04:02:37,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 04:02:37,645 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 04:02:37,646 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 04:02:37,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:37 BoogieIcfgContainer [2022-11-23 04:02:37,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 04:02:37,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 04:02:37,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 04:02:37,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 04:02:37,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:35" (1/3) ... [2022-11-23 04:02:37,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58abdd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:37, skipping insertion in model container [2022-11-23 04:02:37,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:36" (2/3) ... [2022-11-23 04:02:37,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58abdd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:37, skipping insertion in model container [2022-11-23 04:02:37,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:37" (3/3) ... [2022-11-23 04:02:37,657 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-23 04:02:37,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 04:02:37,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 04:02:37,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 04:02:37,742 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53d062dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 04:02:37,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 04:02:37,746 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) [2022-11-23 04:02:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 04:02:37,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:37,756 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] [2022-11-23 04:02:37,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-23 04:02:37,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:02:37,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962696834] [2022-11-23 04:02:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:02:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 04:02:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 04:02:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-23 04:02:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 04:02:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-23 04:02:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 04:02:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:02:38,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962696834] [2022-11-23 04:02:38,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962696834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:02:38,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:02:38,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 04:02:38,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483387850] [2022-11-23 04:02:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:38,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 04:02:38,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:02:38,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 04:02:38,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 04:02:38,296 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 04:02:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:38,326 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-23 04:02:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 04:02:38,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-23 04:02:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:38,337 INFO L225 Difference]: With dead ends: 117 [2022-11-23 04:02:38,337 INFO L226 Difference]: Without dead ends: 52 [2022-11-23 04:02:38,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 04:02:38,344 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 [2022-11-23 04:02:38,351 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] [2022-11-23 04:02:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-23 04:02:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-23 04:02:38,405 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) [2022-11-23 04:02:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-23 04:02:38,414 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-23 04:02:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:38,415 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-23 04:02:38,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 04:02:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-23 04:02:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 04:02:38,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:38,419 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] [2022-11-23 04:02:38,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 04:02:38,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:38,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-23 04:02:38,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:02:38,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727223117] [2022-11-23 04:02:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:38,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:02:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 04:02:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 04:02:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-23 04:02:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 04:02:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-23 04:02:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:39,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:02:39,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727223117] [2022-11-23 04:02:39,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727223117] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:02:39,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536835814] [2022-11-23 04:02:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:39,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 04:02:39,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 04:02:39,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 04:02:39,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 04:02:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:39,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 04:02:39,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 04:02:39,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:40,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536835814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:02:40,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 04:02:40,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 14 [2022-11-23 04:02:40,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849489561] [2022-11-23 04:02:40,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 04:02:40,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 04:02:40,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:02:40,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 04:02:40,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 04:02:40,317 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-23 04:02:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:40,642 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-23 04:02:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 04:02:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 36 [2022-11-23 04:02:40,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:40,648 INFO L225 Difference]: With dead ends: 58 [2022-11-23 04:02:40,648 INFO L226 Difference]: Without dead ends: 56 [2022-11-23 04:02:40,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-23 04:02:40,651 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:40,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 482 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 04:02:40,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-23 04:02:40,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-23 04:02:40,669 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) [2022-11-23 04:02:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-23 04:02:40,680 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-23 04:02:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-23 04:02:40,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-23 04:02:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-23 04:02:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 04:02:40,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:40,686 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] [2022-11-23 04:02:40,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 04:02:40,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 04:02:40,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:40,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:40,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-23 04:02:40,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:02:40,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046485951] [2022-11-23 04:02:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:40,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:02:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 04:02:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 04:02:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-23 04:02:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 04:02:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-23 04:02:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 04:02:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 04:02:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:02:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046485951] [2022-11-23 04:02:41,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046485951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:02:41,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:02:41,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 04:02:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135715432] [2022-11-23 04:02:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:41,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:02:41,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:02:41,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:02:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:02:41,531 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) [2022-11-23 04:02:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:41,790 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-23 04:02:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 04:02:41,794 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 [2022-11-23 04:02:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:41,799 INFO L225 Difference]: With dead ends: 83 [2022-11-23 04:02:41,799 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 04:02:41,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-23 04:02:41,803 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 78 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:41,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 377 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 04:02:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 04:02:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2022-11-23 04:02:41,822 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) [2022-11-23 04:02:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2022-11-23 04:02:41,824 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 42 [2022-11-23 04:02:41,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:41,824 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2022-11-23 04:02:41,825 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) [2022-11-23 04:02:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2022-11-23 04:02:41,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 04:02:41,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:41,827 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] [2022-11-23 04:02:41,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 04:02:41,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:41,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148702, now seen corresponding path program 1 times [2022-11-23 04:02:41,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:02:41,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523486787] [2022-11-23 04:02:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:41,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:02:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 04:02:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 04:02:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-23 04:02:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 04:02:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:42,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-23 04:02:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 04:02:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 04:02:42,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:02:42,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523486787] [2022-11-23 04:02:42,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523486787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:02:42,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:02:42,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 04:02:42,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789241383] [2022-11-23 04:02:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:42,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 04:02:42,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:02:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 04:02:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 04:02:42,057 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 04:02:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:42,085 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2022-11-23 04:02:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 04:02:42,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-23 04:02:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:42,088 INFO L225 Difference]: With dead ends: 113 [2022-11-23 04:02:42,089 INFO L226 Difference]: Without dead ends: 68 [2022-11-23 04:02:42,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 04:02:42,090 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 [2022-11-23 04:02:42,091 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] [2022-11-23 04:02:42,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-23 04:02:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-23 04:02:42,104 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) [2022-11-23 04:02:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2022-11-23 04:02:42,105 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 43 [2022-11-23 04:02:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:42,105 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2022-11-23 04:02:42,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 04:02:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2022-11-23 04:02:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 04:02:42,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:42,107 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] [2022-11-23 04:02:42,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 04:02:42,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:42,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:42,108 INFO L85 PathProgramCache]: Analyzing trace with hash 982661572, now seen corresponding path program 1 times [2022-11-23 04:02:42,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:02:42,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087336706] [2022-11-23 04:02:42,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:42,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:02:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 04:02:42,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 04:02:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 04:02:42,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 04:02:42,261 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 04:02:42,262 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 04:02:42,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 04:02:42,268 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 04:02:42,271 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 04:02:42,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:02:42 BoogieIcfgContainer [2022-11-23 04:02:42,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 04:02:42,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 04:02:42,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 04:02:42,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 04:02:42,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:37" (3/4) ... [2022-11-23 04:02:42,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 04:02:42,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 04:02:42,310 INFO L158 Benchmark]: Toolchain (without parser) took 7272.03ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 105.3MB in the beginning and 126.9MB in the end (delta: -21.6MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,310 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:02:42,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1808.23ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 106.2MB in the end (delta: -1.3MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.63ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 101.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,311 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 148.9MB. Free memory was 101.5MB in the beginning and 98.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,312 INFO L158 Benchmark]: RCFGBuilder took 634.23ms. Allocated memory is still 148.9MB. Free memory was 98.8MB in the beginning and 79.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,312 INFO L158 Benchmark]: TraceAbstraction took 4654.09ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 79.0MB in the beginning and 126.9MB in the end (delta: -47.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-23 04:02:42,312 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 218.1MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:02:42,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1808.23ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 106.2MB in the end (delta: -1.3MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.63ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 101.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 148.9MB. Free memory was 101.5MB in the beginning and 98.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 634.23ms. Allocated memory is still 148.9MB. Free memory was 98.8MB in the beginning and 79.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4654.09ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 79.0MB in the beginning and 126.9MB in the end (delta: -47.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 218.1MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [unknown-#in~cond-unknown=1] [L211] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [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 [unknown-#in~cond-unknown=1] [L211] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [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 [unknown-#in~cond-unknown=1] [L211] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [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 [unknown-#in~cond-unknown=1] [L211] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [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 VAL [c=0, i=0, n=1, s={5:0}, sp={5:0}] [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; VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [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 [unknown-#in~cond-unknown=1] [L211] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={4:0}, n=1] [L5883] CALL __VERIFIER_assert(c == 0) VAL [unknown-#in~cond-unknown=1] [L223] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=0] [L223] COND TRUE !cond VAL [cond=0, unknown-#in~cond-unknown=0] [L223] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 1057 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 797 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 260 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 117 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 572 SizeOfPredicates, 14 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 208/244 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 04:02:42,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-4e7fbc6 [2022-11-23 04:02:44,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 04:02:44,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 04:02:44,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 04:02:44,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 04:02:44,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 04:02:44,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 04:02:44,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 04:02:44,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 04:02:44,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 04:02:44,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 04:02:44,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 04:02:44,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 04:02:44,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 04:02:44,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 04:02:44,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 04:02:44,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 04:02:44,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 04:02:44,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 04:02:44,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 04:02:44,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 04:02:44,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 04:02:44,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 04:02:44,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 04:02:44,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 04:02:44,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 04:02:44,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 04:02:44,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 04:02:44,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 04:02:44,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 04:02:44,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 04:02:44,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 04:02:44,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 04:02:44,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 04:02:44,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 04:02:44,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 04:02:44,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 04:02:44,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 04:02:44,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 04:02:44,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 04:02:44,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 04:02:44,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-23 04:02:45,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 04:02:45,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 04:02:45,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 04:02:45,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 04:02:45,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 04:02:45,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 04:02:45,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 04:02:45,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 04:02:45,024 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 04:02:45,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 04:02:45,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 04:02:45,027 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 04:02:45,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 04:02:45,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 04:02:45,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 04:02:45,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 04:02:45,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 04:02:45,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 04:02:45,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:02:45,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 04:02:45,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 04:02:45,029 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 04:02:45,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 04:02:45,030 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 04:02:45,030 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-23 04:02:45,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 04:02:45,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 04:02:45,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 04:02:45,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 04:02:45,429 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 04:02:45,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-23 04:02:48,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 04:02:48,901 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 04:02:48,906 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-23 04:02:48,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/c48af60ff/754030a221e442f9bc77db25fc193f3f/FLAGc66e849ae [2022-11-23 04:02:48,975 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/data/c48af60ff/754030a221e442f9bc77db25fc193f3f [2022-11-23 04:02:48,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 04:02:48,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 04:02:48,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 04:02:48,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 04:02:48,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 04:02:48,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:48" (1/1) ... [2022-11-23 04:02:48,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c8af0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:48, skipping insertion in model container [2022-11-23 04:02:48,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:48" (1/1) ... [2022-11-23 04:02:48,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 04:02:49,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 04:02:49,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-23 04:02:49,404 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-23 04:02:50,143 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,144 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,144 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,145 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,146 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,161 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,162 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,171 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,172 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,174 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,175 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,175 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,176 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,362 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 04:02:50,364 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 04:02:50,365 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 04:02:50,366 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 04:02:50,367 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 04:02:50,368 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 04:02:50,369 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 04:02:50,370 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 04:02:50,370 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 04:02:50,371 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 04:02:50,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:02:50,464 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 04:02:50,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 04:02:50,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-23 04:02:50,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-23 04:02:50,606 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,607 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,607 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,608 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,609 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,628 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,628 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,633 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,633 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,638 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,640 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,640 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,682 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 04:02:50,687 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 04:02:50,689 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 04:02:50,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 04:02:50,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 04:02:50,696 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 04:02:50,696 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 04:02:50,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 04:02:50,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 04:02:50,699 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 04:02:50,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:02:50,760 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 04:02:50,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-23 04:02:50,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-23 04:02:50,830 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,831 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,831 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,832 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,832 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,838 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,839 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,840 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,840 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,841 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,841 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,842 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,842 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 04:02:50,859 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 04:02:50,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 04:02:50,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 04:02:50,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 04:02:50,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 04:02:50,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 04:02:50,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 04:02:50,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 04:02:50,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 04:02:50,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 04:02:50,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:02:51,047 INFO L208 MainTranslator]: Completed translation [2022-11-23 04:02:51,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51 WrapperNode [2022-11-23 04:02:51,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 04:02:51,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 04:02:51,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 04:02:51,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 04:02:51,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,161 INFO L138 Inliner]: procedures = 611, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-23 04:02:51,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 04:02:51,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 04:02:51,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 04:02:51,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 04:02:51,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,223 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 04:02:51,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 04:02:51,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 04:02:51,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 04:02:51,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (1/1) ... [2022-11-23 04:02:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:02:51,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 04:02:51,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 04:02:51,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 04:02:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 04:02:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 04:02:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 04:02:51,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 04:02:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 04:02:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 04:02:51,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 04:02:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-23 04:02:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 04:02:51,368 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 04:02:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 04:02:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-23 04:02:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-23 04:02:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-23 04:02:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-23 04:02:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 04:02:51,370 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 04:02:51,672 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 04:02:51,674 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 04:02:52,032 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 04:02:52,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 04:02:52,050 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 04:02:52,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:52 BoogieIcfgContainer [2022-11-23 04:02:52,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 04:02:52,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 04:02:52,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 04:02:52,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 04:02:52,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:48" (1/3) ... [2022-11-23 04:02:52,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a36320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:52, skipping insertion in model container [2022-11-23 04:02:52,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:51" (2/3) ... [2022-11-23 04:02:52,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a36320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:52, skipping insertion in model container [2022-11-23 04:02:52,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:52" (3/3) ... [2022-11-23 04:02:52,084 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-23 04:02:52,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 04:02:52,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 04:02:52,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 04:02:52,177 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fd3c8a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 04:02:52,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 04:02:52,184 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) [2022-11-23 04:02:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 04:02:52,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:52,200 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] [2022-11-23 04:02:52,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:52,208 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-23 04:02:52,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:52,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372728770] [2022-11-23 04:02:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:52,237 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 [2022-11-23 04:02:52,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:52,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:52,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:52,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 04:02:52,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 04:02:52,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 04:02:52,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:52,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372728770] [2022-11-23 04:02:52,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372728770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:02:52,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:02:52,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 04:02:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297304474] [2022-11-23 04:02:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:52,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 04:02:52,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:52,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 04:02:52,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 04:02:52,542 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) [2022-11-23 04:02:52,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:52,584 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-23 04:02:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 04:02:52,587 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 [2022-11-23 04:02:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:52,596 INFO L225 Difference]: With dead ends: 117 [2022-11-23 04:02:52,596 INFO L226 Difference]: Without dead ends: 52 [2022-11-23 04:02:52,601 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 [2022-11-23 04:02:52,605 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 [2022-11-23 04:02:52,607 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] [2022-11-23 04:02:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-23 04:02:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-23 04:02:52,655 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) [2022-11-23 04:02:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-23 04:02:52,661 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-23 04:02:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:52,661 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-23 04:02:52,662 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) [2022-11-23 04:02:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-23 04:02:52,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 04:02:52,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:52,666 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] [2022-11-23 04:02:52,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:52,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:52,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-23 04:02:52,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:52,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734548825] [2022-11-23 04:02:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:52,882 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 [2022-11-23 04:02:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:52,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:52,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:53,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 04:02:53,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:53,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:53,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734548825] [2022-11-23 04:02:53,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734548825] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:02:53,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:02:53,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-23 04:02:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225335247] [2022-11-23 04:02:53,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:02:53,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 04:02:53,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:53,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 04:02:53,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 04:02:53,458 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 04:02:53,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:53,736 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-23 04:02:53,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 04:02:53,737 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 36 [2022-11-23 04:02:53,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:53,742 INFO L225 Difference]: With dead ends: 58 [2022-11-23 04:02:53,742 INFO L226 Difference]: Without dead ends: 56 [2022-11-23 04:02:53,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-23 04:02:53,745 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 46 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:53,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 252 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 04:02:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-23 04:02:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-23 04:02:53,766 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) [2022-11-23 04:02:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-23 04:02:53,780 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-23 04:02:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:53,781 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-23 04:02:53,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 04:02:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-23 04:02:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 04:02:53,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:53,786 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] [2022-11-23 04:02:53,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:54,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:54,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-23 04:02:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:54,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608451852] [2022-11-23 04:02:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:54,009 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 [2022-11-23 04:02:54,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:54,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:54,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Waiting until timeout for monitored process [2022-11-23 04:02:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:54,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 04:02:54,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:54,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:02:54,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608451852] [2022-11-23 04:02:54,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608451852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:02:54,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:02:54,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-23 04:02:54,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650758153] [2022-11-23 04:02:54,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:02:54,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 04:02:54,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:54,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 04:02:54,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 04:02:54,836 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 04:02:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:55,603 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2022-11-23 04:02:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 04:02:55,604 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 42 [2022-11-23 04:02:55,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:55,605 INFO L225 Difference]: With dead ends: 62 [2022-11-23 04:02:55,606 INFO L226 Difference]: Without dead ends: 60 [2022-11-23 04:02:55,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-23 04:02:55,607 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 51 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:55,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 406 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 04:02:55,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-23 04:02:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-23 04:02:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 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) [2022-11-23 04:02:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2022-11-23 04:02:55,620 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 42 [2022-11-23 04:02:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:55,621 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2022-11-23 04:02:55,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 04:02:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2022-11-23 04:02:55,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-23 04:02:55,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:55,623 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] [2022-11-23 04:02:55,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 04:02:55,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:55,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:55,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2022-11-23 04:02:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:55,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626089599] [2022-11-23 04:02:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:55,851 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 [2022-11-23 04:02:55,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:55,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:55,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (5)] Waiting until timeout for monitored process [2022-11-23 04:02:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:55,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 04:02:55,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-23 04:02:56,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 04:02:56,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:56,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626089599] [2022-11-23 04:02:56,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626089599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:02:56,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:02:56,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:02:56,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778348682] [2022-11-23 04:02:56,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:02:56,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:56,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:02:56,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:02:56,265 INFO L87 Difference]: Start difference. First operand 60 states and 72 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) [2022-11-23 04:02:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:56,428 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-23 04:02:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:02:56,429 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 [2022-11-23 04:02:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:56,430 INFO L225 Difference]: With dead ends: 66 [2022-11-23 04:02:56,430 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 04:02:56,430 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 [2022-11-23 04:02:56,431 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 [2022-11-23 04:02:56,432 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] [2022-11-23 04:02:56,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 04:02:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-23 04:02:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 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) [2022-11-23 04:02:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2022-11-23 04:02:56,445 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 51 [2022-11-23 04:02:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:56,446 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2022-11-23 04:02:56,446 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) [2022-11-23 04:02:56,446 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2022-11-23 04:02:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 04:02:56,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:56,453 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] [2022-11-23 04:02:56,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (5)] Forceful destruction successful, exit code 0 [2022-11-23 04:02:56,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:56,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:56,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2022-11-23 04:02:56,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:56,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353022105] [2022-11-23 04:02:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:56,665 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 [2022-11-23 04:02:56,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:56,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:56,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:56,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 04:02:56,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:02:57,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 04:02:57,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:57,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353022105] [2022-11-23 04:02:57,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353022105] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 04:02:57,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 04:02:57,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-23 04:02:57,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649334135] [2022-11-23 04:02:57,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 04:02:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 04:02:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-23 04:02:57,260 INFO L87 Difference]: Start difference. First operand 64 states and 75 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) [2022-11-23 04:02:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:57,422 INFO L93 Difference]: Finished difference Result 107 states and 126 transitions. [2022-11-23 04:02:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 04:02:57,422 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 [2022-11-23 04:02:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:57,424 INFO L225 Difference]: With dead ends: 107 [2022-11-23 04:02:57,424 INFO L226 Difference]: Without dead ends: 79 [2022-11-23 04:02:57,424 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 [2022-11-23 04:02:57,425 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 29 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:57,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 217 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 04:02:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-23 04:02:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2022-11-23 04:02:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 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) [2022-11-23 04:02:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2022-11-23 04:02:57,444 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 68 [2022-11-23 04:02:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:57,445 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-11-23 04:02:57,445 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) [2022-11-23 04:02:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2022-11-23 04:02:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 04:02:57,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:57,447 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] [2022-11-23 04:02:57,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:57,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:57,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:57,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1524731977, now seen corresponding path program 1 times [2022-11-23 04:02:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:57,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491259219] [2022-11-23 04:02:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:57,663 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 [2022-11-23 04:02:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:57,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:57,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (7)] Waiting until timeout for monitored process [2022-11-23 04:02:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:57,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 04:02:57,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 38 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:02:58,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 04:02:58,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:58,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491259219] [2022-11-23 04:02:58,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491259219] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 04:02:58,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 04:02:58,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-23 04:02:58,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541087349] [2022-11-23 04:02:58,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:58,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 04:02:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:58,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 04:02:58,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 04:02:58,214 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 04:02:58,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:58,264 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2022-11-23 04:02:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 04:02:58,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-23 04:02:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:58,267 INFO L225 Difference]: With dead ends: 131 [2022-11-23 04:02:58,267 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 04:02:58,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 04:02:58,268 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 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, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:58,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 04:02:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 04:02:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-23 04:02:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 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) [2022-11-23 04:02:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2022-11-23 04:02:58,302 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 69 [2022-11-23 04:02:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:58,302 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2022-11-23 04:02:58,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 04:02:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2022-11-23 04:02:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 04:02:58,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:58,308 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] [2022-11-23 04:02:58,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (7)] Forceful destruction successful, exit code 0 [2022-11-23 04:02:58,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:58,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2022-11-23 04:02:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:58,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134875092] [2022-11-23 04:02:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:58,530 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 [2022-11-23 04:02:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:58,531 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:58,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:58,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 04:02:58,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:02:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:02:58,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:02:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 04:02:59,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:02:59,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134875092] [2022-11-23 04:02:59,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134875092] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 04:02:59,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 04:02:59,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-11-23 04:02:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454658749] [2022-11-23 04:02:59,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:02:59,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:02:59,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:02:59,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:02:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-23 04:02:59,202 INFO L87 Difference]: Start difference. First operand 78 states and 94 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) [2022-11-23 04:02:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:02:59,367 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-11-23 04:02:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:02:59,368 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 [2022-11-23 04:02:59,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:02:59,369 INFO L225 Difference]: With dead ends: 100 [2022-11-23 04:02:59,369 INFO L226 Difference]: Without dead ends: 65 [2022-11-23 04:02:59,370 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 [2022-11-23 04:02:59,371 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 28 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 04:02:59,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 277 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 04:02:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-23 04:02:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-23 04:02:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 44 states have internal predecessors, (47), 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) [2022-11-23 04:02:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2022-11-23 04:02:59,383 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 72 [2022-11-23 04:02:59,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:02:59,384 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2022-11-23 04:02:59,384 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) [2022-11-23 04:02:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-11-23 04:02:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 04:02:59,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:02:59,385 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] [2022-11-23 04:02:59,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:59,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:02:59,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:02:59,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:02:59,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1069315495, now seen corresponding path program 1 times [2022-11-23 04:02:59,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:02:59,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423333315] [2022-11-23 04:02:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:02:59,601 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 [2022-11-23 04:02:59,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:02:59,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:02:59,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (9)] Waiting until timeout for monitored process [2022-11-23 04:02:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:02:59,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 04:02:59,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:03:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:03:00,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:03:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-23 04:03:00,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:03:00,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423333315] [2022-11-23 04:03:00,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423333315] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:03:00,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:03:00,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-23 04:03:00,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559464563] [2022-11-23 04:03:00,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:03:00,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 04:03:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:03:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 04:03:00,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 04:03:00,486 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:03:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:03:01,158 INFO L93 Difference]: Finished difference Result 124 states and 142 transitions. [2022-11-23 04:03:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 04:03:01,159 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 71 [2022-11-23 04:03:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:03:01,160 INFO L225 Difference]: With dead ends: 124 [2022-11-23 04:03:01,160 INFO L226 Difference]: Without dead ends: 71 [2022-11-23 04:03:01,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-11-23 04:03:01,161 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 88 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 04:03:01,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 321 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 04:03:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-23 04:03:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-23 04:03:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 50 states have internal predecessors, (53), 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) [2022-11-23 04:03:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-11-23 04:03:01,177 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 71 [2022-11-23 04:03:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:03:01,177 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-11-23 04:03:01,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:03:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-11-23 04:03:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 04:03:01,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:03:01,179 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-11-23 04:03:01,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (9)] Forceful destruction successful, exit code 0 [2022-11-23 04:03:01,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:03:01,391 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:03:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:03:01,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1704630079, now seen corresponding path program 2 times [2022-11-23 04:03:01,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:03:01,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136447878] [2022-11-23 04:03:01,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 04:03:01,392 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 [2022-11-23 04:03:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:03:01,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:03:01,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:03:01,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 04:03:01,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:03:01,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 04:03:01,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:03:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:03:02,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:03:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-23 04:03:03,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:03:03,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136447878] [2022-11-23 04:03:03,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136447878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:03:03,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:03:03,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2022-11-23 04:03:03,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791430057] [2022-11-23 04:03:03,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:03:03,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-23 04:03:03,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:03:03,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-23 04:03:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2022-11-23 04:03:03,144 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 20 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:03:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:03:04,870 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2022-11-23 04:03:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 04:03:04,871 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 77 [2022-11-23 04:03:04,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:03:04,872 INFO L225 Difference]: With dead ends: 132 [2022-11-23 04:03:04,872 INFO L226 Difference]: Without dead ends: 79 [2022-11-23 04:03:04,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2022-11-23 04:03:04,874 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 04:03:04,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 465 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 04:03:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-23 04:03:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-23 04:03:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.0701754385964912) internal successors, (61), 58 states have internal predecessors, (61), 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) [2022-11-23 04:03:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2022-11-23 04:03:04,891 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 77 [2022-11-23 04:03:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:03:04,892 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2022-11-23 04:03:04,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:03:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2022-11-23 04:03:04,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-23 04:03:04,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:03:04,893 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] [2022-11-23 04:03:04,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:03:05,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:03:05,103 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:03:05,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:03:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash 458929863, now seen corresponding path program 3 times [2022-11-23 04:03:05,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:03:05,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588283897] [2022-11-23 04:03:05,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 04:03:05,105 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 [2022-11-23 04:03:05,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:03:05,106 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:03:05,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Waiting until timeout for monitored process [2022-11-23 04:03:05,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 04:03:05,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:03:05,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 04:03:05,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:03:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-23 04:03:05,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:03:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-23 04:03:05,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:03:05,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588283897] [2022-11-23 04:03:05,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588283897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:03:05,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:03:05,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-23 04:03:05,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527376276] [2022-11-23 04:03:05,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:03:05,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 04:03:05,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:03:05,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 04:03:05,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-23 04:03:05,985 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 04:03:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:03:07,034 INFO L93 Difference]: Finished difference Result 115 states and 130 transitions. [2022-11-23 04:03:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 04:03:07,035 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2022-11-23 04:03:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:03:07,036 INFO L225 Difference]: With dead ends: 115 [2022-11-23 04:03:07,036 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 04:03:07,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 153 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-11-23 04:03:07,038 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 77 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 04:03:07,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 448 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 04:03:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 04:03:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-11-23 04:03:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 62 states have internal predecessors, (66), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 04:03:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2022-11-23 04:03:07,057 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 85 [2022-11-23 04:03:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:03:07,057 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2022-11-23 04:03:07,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 04:03:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2022-11-23 04:03:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 04:03:07,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:03:07,059 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] [2022-11-23 04:03:07,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 04:03:07,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:03:07,274 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:03:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:03:07,274 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 1 times [2022-11-23 04:03:07,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:03:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486281026] [2022-11-23 04:03:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:03:07,275 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 [2022-11-23 04:03:07,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:03:07,276 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:03:07,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (12)] Waiting until timeout for monitored process [2022-11-23 04:03:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:03:08,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-23 04:03:08,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:03:08,529 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 [2022-11-23 04:03:08,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:08,842 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 [2022-11-23 04:03:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,197 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 [2022-11-23 04:03:09,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:09,604 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 [2022-11-23 04:03:10,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,122 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 [2022-11-23 04:03:10,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:10,706 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 [2022-11-23 04:03:11,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:11,350 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 [2022-11-23 04:03:12,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:12,053 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 04:03:12,054 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 21 case distinctions, treesize of input 75 treesize of output 92 [2022-11-23 04:03:15,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:15,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:15,938 INFO L321 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-23 04:03:15,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 46 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 125 treesize of output 173 [2022-11-23 04:03:20,498 INFO L321 Elim1Store]: treesize reduction 386, result has 1.8 percent of original size [2022-11-23 04:03:20,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 28 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 127 treesize of output 61 [2022-11-23 04:03:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 26 proven. 89 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:03:20,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:03:21,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:03:21,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486281026] [2022-11-23 04:03:21,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486281026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:03:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [65046162] [2022-11-23 04:03:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:03:21,641 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 04:03:21,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 [2022-11-23 04:03:21,647 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 04:03:21,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-23 04:03:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:03:22,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-23 04:03:22,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:03:23,093 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 [2022-11-23 04:03:24,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:24,393 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 [2022-11-23 04:03:25,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:25,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:25,023 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-23 04:03:25,023 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 [2022-11-23 04:03:25,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:25,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:25,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:25,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:25,775 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:25,775 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 [2022-11-23 04:03:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:26,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:26,725 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:26,725 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 [2022-11-23 04:03:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:27,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:27,717 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:27,718 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 [2022-11-23 04:03:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:28,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:28,818 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:28,819 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 [2022-11-23 04:03:29,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:29,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:30,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:30,014 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:30,015 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 [2022-11-23 04:03:31,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:31,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:31,313 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:03:31,314 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 [2022-11-23 04:03:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:03:38,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:03:38,969 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-23 04:03:38,969 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 [2022-11-23 04:03:47,704 INFO L321 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-11-23 04:03:47,704 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 [2022-11-23 04:03:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 04:03:47,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:03:47,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [65046162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:03:47,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:03:47,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37] total 71 [2022-11-23 04:03:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519054137] [2022-11-23 04:03:47,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:03:47,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-11-23 04:03:47,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:03:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-11-23 04:03:47,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=5359, Unknown=0, NotChecked=0, Total=5700 [2022-11-23 04:03:47,819 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 71 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 66 states have internal predecessors, (108), 12 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2022-11-23 04:03:53,408 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 [0] [2022-11-23 04:03:55,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:03:58,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:00,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:02,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:04,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:07,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:09,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:13,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:15,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:18,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:20,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:23,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:25,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:28,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:32,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:36,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:38,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:43,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:04:59,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:05:20,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:05:22,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:05:29,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:05:31,087 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 [0] [2022-11-23 04:05:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:05:31,989 INFO L93 Difference]: Finished difference Result 195 states and 218 transitions. [2022-11-23 04:05:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-23 04:05:31,990 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 66 states have internal predecessors, (108), 12 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) Word has length 87 [2022-11-23 04:05:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:05:31,991 INFO L225 Difference]: With dead ends: 195 [2022-11-23 04:05:31,991 INFO L226 Difference]: Without dead ends: 189 [2022-11-23 04:05:31,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 93 SyntacticMatches, 19 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4016 ImplicationChecksByTransitivity, 40.2s TimeCoverageRelationStatistics Valid=1002, Invalid=11208, Unknown=0, NotChecked=0, Total=12210 [2022-11-23 04:05:31,997 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 690 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 3872 mSolverCounterSat, 338 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3872 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.9s IncrementalHoareTripleChecker+Time [2022-11-23 04:05:31,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1624 Invalid, 4234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 3872 Invalid, 24 Unknown, 0 Unchecked, 90.9s Time] [2022-11-23 04:05:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-23 04:05:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2022-11-23 04:05:32,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 122 states have (on average 1.0901639344262295) internal successors, (133), 124 states have internal predecessors, (133), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-23 04:05:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 196 transitions. [2022-11-23 04:05:32,079 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 196 transitions. Word has length 87 [2022-11-23 04:05:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:05:32,080 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 196 transitions. [2022-11-23 04:05:32,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 66 states have internal predecessors, (108), 12 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2022-11-23 04:05:32,080 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 196 transitions. [2022-11-23 04:05:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 04:05:32,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:05:32,082 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] [2022-11-23 04:05:32,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2022-11-23 04:05:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (12)] Forceful destruction successful, exit code 0 [2022-11-23 04:05:32,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:32,490 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:05:32,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:05:32,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1360942848, now seen corresponding path program 1 times [2022-11-23 04:05:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:05:32,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057327770] [2022-11-23 04:05:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:05:32,491 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 [2022-11-23 04:05:32,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:05:32,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:05:32,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:05:32,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 04:05:32,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:05:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-23 04:05:33,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 04:05:33,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:05:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057327770] [2022-11-23 04:05:33,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057327770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:05:33,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:05:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:05:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429196549] [2022-11-23 04:05:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:05:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:05:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:05:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:05:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:05:33,135 INFO L87 Difference]: Start difference. First operand 172 states and 196 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-11-23 04:05:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:05:33,475 INFO L93 Difference]: Finished difference Result 216 states and 238 transitions. [2022-11-23 04:05:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:05:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 89 [2022-11-23 04:05:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:05:33,477 INFO L225 Difference]: With dead ends: 216 [2022-11-23 04:05:33,478 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 04:05:33,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:05:33,479 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 04:05:33,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 181 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 04:05:33,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 04:05:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2022-11-23 04:05:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 105 states have (on average 1.0571428571428572) internal successors, (111), 107 states have internal predecessors, (111), 29 states have call successors, (29), 16 states have call predecessors, (29), 13 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-23 04:05:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2022-11-23 04:05:33,539 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 89 [2022-11-23 04:05:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:05:33,540 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2022-11-23 04:05:33,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-11-23 04:05:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2022-11-23 04:05:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 04:05:33,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:05:33,541 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 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] [2022-11-23 04:05:33,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:33,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:33,743 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:05:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:05:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash -250047413, now seen corresponding path program 2 times [2022-11-23 04:05:33,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:05:33,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372360741] [2022-11-23 04:05:33,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 04:05:33,745 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 [2022-11-23 04:05:33,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:05:33,747 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:05:33,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:34,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 04:05:34,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:05:34,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 04:05:34,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:05:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 38 proven. 87 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-23 04:05:35,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:05:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-23 04:05:37,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:05:37,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372360741] [2022-11-23 04:05:37,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372360741] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:05:37,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:05:37,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 32 [2022-11-23 04:05:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676449228] [2022-11-23 04:05:37,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:05:37,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 04:05:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:05:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 04:05:37,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2022-11-23 04:05:37,555 INFO L87 Difference]: Start difference. First operand 148 states and 165 transitions. Second operand has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 29 states have internal predecessors, (80), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:05:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:05:47,033 INFO L93 Difference]: Finished difference Result 234 states and 262 transitions. [2022-11-23 04:05:47,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 04:05:47,036 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 29 states have internal predecessors, (80), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 89 [2022-11-23 04:05:47,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:05:47,038 INFO L225 Difference]: With dead ends: 234 [2022-11-23 04:05:47,038 INFO L226 Difference]: Without dead ends: 162 [2022-11-23 04:05:47,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=698, Invalid=2608, Unknown=0, NotChecked=0, Total=3306 [2022-11-23 04:05:47,040 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 492 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 04:05:47,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 713 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 04:05:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-23 04:05:47,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-23 04:05:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 122 states have (on average 1.0491803278688525) internal successors, (128), 123 states have internal predecessors, (128), 26 states have call successors, (26), 16 states have call predecessors, (26), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 04:05:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 176 transitions. [2022-11-23 04:05:47,098 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 176 transitions. Word has length 89 [2022-11-23 04:05:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:05:47,099 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 176 transitions. [2022-11-23 04:05:47,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 29 states have internal predecessors, (80), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2022-11-23 04:05:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 176 transitions. [2022-11-23 04:05:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-23 04:05:47,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:05:47,101 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 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] [2022-11-23 04:05:47,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:47,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:47,308 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:05:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:05:47,308 INFO L85 PathProgramCache]: Analyzing trace with hash -59588295, now seen corresponding path program 3 times [2022-11-23 04:05:47,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:05:47,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125294753] [2022-11-23 04:05:47,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 04:05:47,309 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 [2022-11-23 04:05:47,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:05:47,311 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:05:47,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:05:48,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2022-11-23 04:05:48,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:05:48,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 04:05:48,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:05:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 41 proven. 263 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 04:05:50,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:05:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 9 proven. 260 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 04:05:58,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:05:58,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125294753] [2022-11-23 04:05:58,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125294753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:05:58,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:05:58,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29] total 58 [2022-11-23 04:05:58,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488521430] [2022-11-23 04:05:58,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:05:58,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-23 04:05:58,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:05:58,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-23 04:05:58,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=2776, Unknown=0, NotChecked=0, Total=3306 [2022-11-23 04:05:58,115 INFO L87 Difference]: Start difference. First operand 162 states and 176 transitions. Second operand has 58 states, 56 states have (on average 2.107142857142857) internal successors, (118), 55 states have internal predecessors, (118), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) [2022-11-23 04:06:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:06:09,604 INFO L93 Difference]: Finished difference Result 227 states and 253 transitions. [2022-11-23 04:06:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-23 04:06:09,605 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 56 states have (on average 2.107142857142857) internal successors, (118), 55 states have internal predecessors, (118), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) Word has length 103 [2022-11-23 04:06:09,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:06:09,606 INFO L225 Difference]: With dead ends: 227 [2022-11-23 04:06:09,606 INFO L226 Difference]: Without dead ends: 191 [2022-11-23 04:06:09,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1298 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1172, Invalid=5308, Unknown=0, NotChecked=0, Total=6480 [2022-11-23 04:06:09,608 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 913 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-23 04:06:09,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1593 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-23 04:06:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-23 04:06:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 164. [2022-11-23 04:06:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 124 states have (on average 1.0483870967741935) internal successors, (130), 125 states have internal predecessors, (130), 26 states have call successors, (26), 16 states have call predecessors, (26), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 04:06:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 178 transitions. [2022-11-23 04:06:09,677 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 178 transitions. Word has length 103 [2022-11-23 04:06:09,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:06:09,677 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 178 transitions. [2022-11-23 04:06:09,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 56 states have (on average 2.107142857142857) internal successors, (118), 55 states have internal predecessors, (118), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) [2022-11-23 04:06:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 178 transitions. [2022-11-23 04:06:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-23 04:06:09,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:06:09,679 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] [2022-11-23 04:06:09,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:06:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:06:09,895 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:06:09,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:06:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2022-11-23 04:06:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:06:09,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270270231] [2022-11-23 04:06:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:06:09,897 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 [2022-11-23 04:06:09,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:06:09,898 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:06:09,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (17)] Waiting until timeout for monitored process [2022-11-23 04:06:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:06:10,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-23 04:06:10,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:06:11,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:11,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:11,972 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 [2022-11-23 04:06:17,904 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-23 04:06:17,904 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 [2022-11-23 04:06:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:06:18,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:06:18,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:06:18,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270270231] [2022-11-23 04:06:18,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270270231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:06:18,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [706326929] [2022-11-23 04:06:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:06:18,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 04:06:18,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 [2022-11-23 04:06:18,629 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 04:06:18,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-23 04:06:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:06:19,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-23 04:06:19,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:06:21,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:06:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:06:21,761 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 [2022-11-23 04:06:26,062 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-23 04:06:26,063 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 [2022-11-23 04:06:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 04:06:26,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:06:26,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [706326929] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:06:26,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:06:26,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 44 [2022-11-23 04:06:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096587822] [2022-11-23 04:06:26,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:06:26,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-23 04:06:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:06:26,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-23 04:06:26,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-11-23 04:06:26,147 INFO L87 Difference]: Start difference. First operand 164 states and 178 transitions. Second operand has 44 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 11 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-23 04:06:29,232 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 [0] [2022-11-23 04:06:31,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:33,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:36,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:38,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:40,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:42,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:44,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:47,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:06:49,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:07:11,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:07:13,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:07:13,423 INFO L93 Difference]: Finished difference Result 167 states and 180 transitions. [2022-11-23 04:07:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 04:07:13,424 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 11 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 108 [2022-11-23 04:07:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:07:13,427 INFO L225 Difference]: With dead ends: 167 [2022-11-23 04:07:13,427 INFO L226 Difference]: Without dead ends: 106 [2022-11-23 04:07:13,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 156 SyntacticMatches, 23 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=539, Invalid=4717, Unknown=0, NotChecked=0, Total=5256 [2022-11-23 04:07:13,432 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 349 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 110 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2022-11-23 04:07:13,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 613 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1380 Invalid, 11 Unknown, 0 Unchecked, 43.4s Time] [2022-11-23 04:07:13,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-23 04:07:13,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-23 04:07:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 84 states have (on average 1.0476190476190477) internal successors, (88), 85 states have internal predecessors, (88), 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) [2022-11-23 04:07:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2022-11-23 04:07:13,466 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 108 [2022-11-23 04:07:13,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:07:13,467 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2022-11-23 04:07:13,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 11 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-23 04:07:13,467 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2022-11-23 04:07:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-23 04:07:13,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:07:13,468 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] [2022-11-23 04:07:13,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (17)] Forceful destruction successful, exit code 0 [2022-11-23 04:07:13,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-23 04:07:13,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt [2022-11-23 04:07:13,871 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:07:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:07:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 4 times [2022-11-23 04:07:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:07:13,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333183769] [2022-11-23 04:07:13,873 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 04:07:13,873 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 [2022-11-23 04:07:13,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:07:13,874 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:07:13,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:07:15,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 04:07:15,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:07:15,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-23 04:07:15,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:07:16,399 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 [2022-11-23 04:07:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:16,718 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 [2022-11-23 04:07:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,075 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 [2022-11-23 04:07:17,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:17,516 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 [2022-11-23 04:07:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,011 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 [2022-11-23 04:07:18,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:18,590 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 [2022-11-23 04:07:19,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,255 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 [2022-11-23 04:07:19,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:19,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,021 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 [2022-11-23 04:07:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:20,880 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 [2022-11-23 04:07:21,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:21,800 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 [2022-11-23 04:07:22,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:22,730 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 [2022-11-23 04:07:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:23,677 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 123 treesize of output 152 [2022-11-23 04:07:24,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:24,780 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 [2022-11-23 04:07:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:25,930 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 [2022-11-23 04:07:27,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:27,195 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 153 treesize of output 191 [2022-11-23 04:07:28,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:28,599 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 04:07:28,600 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 148 treesize of output 189 [2022-11-23 04:07:37,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:37,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:37,658 INFO L321 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-23 04:07:37,658 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 [2022-11-23 04:07:41,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:07:41,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:07:41,771 INFO L321 Elim1Store]: treesize reduction 216, result has 25.3 percent of original size [2022-11-23 04:07:41,771 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 326 treesize of output 422 [2022-11-23 04:07:53,795 INFO L321 Elim1Store]: treesize reduction 770, result has 0.9 percent of original size [2022-11-23 04:07:53,795 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 [2022-11-23 04:07:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 284 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 04:07:54,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:07:55,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:07:55,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333183769] [2022-11-23 04:07:55,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333183769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:07:55,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [416270471] [2022-11-23 04:07:55,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 04:07:55,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 04:07:55,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 [2022-11-23 04:07:55,786 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 04:07:55,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-23 04:08:03,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 04:08:03,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:08:03,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-23 04:08:03,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:08:03,277 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 [2022-11-23 04:08:05,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:05,642 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 [2022-11-23 04:08:06,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:06,653 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-23 04:08:06,653 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 [2022-11-23 04:08:07,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:07,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:07,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:07,854 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:07,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 49 [2022-11-23 04:08:09,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:09,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:09,307 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:09,307 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 55 treesize of output 63 [2022-11-23 04:08:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:10,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:10,699 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:10,699 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 [2022-11-23 04:08:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:12,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:12,085 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:12,085 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 71 treesize of output 85 [2022-11-23 04:08:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:13,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:13,591 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:13,591 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 [2022-11-23 04:08:15,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:15,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:15,270 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:15,270 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 91 treesize of output 111 [2022-11-23 04:08:16,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:16,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:17,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:17,019 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:17,019 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 [2022-11-23 04:08:18,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:19,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:19,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:19,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:19,013 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:19,014 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 111 treesize of output 137 [2022-11-23 04:08:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:21,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:21,029 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:21,029 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 [2022-11-23 04:08:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:23,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:23,105 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:23,105 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 130 treesize of output 162 [2022-11-23 04:08:25,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:25,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:25,284 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:25,285 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 [2022-11-23 04:08:27,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:27,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:27,647 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:27,648 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 151 treesize of output 189 [2022-11-23 04:08:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:30,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:30,141 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:30,142 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 [2022-11-23 04:08:32,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:32,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:32,780 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 04:08:32,781 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 [2022-11-23 04:08:48,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:48,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:48,547 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-23 04:08:48,547 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 [2022-11-23 04:08:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:08:55,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:08:55,219 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 04:08:55,220 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 [2022-11-23 04:09:14,362 INFO L321 Elim1Store]: treesize reduction 290, result has 2.4 percent of original size [2022-11-23 04:09:14,363 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 [2022-11-23 04:09:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 41 proven. 278 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 04:09:14,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:09:14,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [416270471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:09:14,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:09:14,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55] total 110 [2022-11-23 04:09:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593132943] [2022-11-23 04:09:14,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:09:14,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-11-23 04:09:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:09:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-11-23 04:09:14,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=12580, Unknown=0, NotChecked=0, Total=13110 [2022-11-23 04:09:14,485 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand has 110 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 105 states have internal predecessors, (144), 13 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 13 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-23 04:09:25,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:27,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:30,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:32,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:36,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:38,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:41,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:44,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:47,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:49,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:53,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:55,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:09:59,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:01,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:06,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:08,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:12,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:14,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:19,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:21,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:25,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:28,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:32,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:34,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:39,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:41,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:45,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:48,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:52,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:55,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:10:59,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:11:06,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:11:12,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:11:20,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:11:36,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:26,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:30,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:32,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:34,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:36,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:38,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:40,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:12:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:12:45,006 INFO L93 Difference]: Finished difference Result 200 states and 218 transitions. [2022-11-23 04:12:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-23 04:12:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 105 states have internal predecessors, (144), 13 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 13 states have call predecessors, (20), 12 states have call successors, (20) Word has length 105 [2022-11-23 04:12:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:12:45,008 INFO L225 Difference]: With dead ends: 200 [2022-11-23 04:12:45,008 INFO L226 Difference]: Without dead ends: 160 [2022-11-23 04:12:45,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 88 SyntacticMatches, 20 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9400 ImplicationChecksByTransitivity, 119.9s TimeCoverageRelationStatistics Valid=1577, Invalid=26815, Unknown=0, NotChecked=0, Total=28392 [2022-11-23 04:12:45,012 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 455 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 5745 mSolverCounterSat, 273 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 6057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 5745 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.8s IncrementalHoareTripleChecker+Time [2022-11-23 04:12:45,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1221 Invalid, 6057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [273 Valid, 5745 Invalid, 39 Unknown, 0 Unchecked, 172.8s Time] [2022-11-23 04:12:45,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-23 04:12:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2022-11-23 04:12:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 120 states have (on average 1.0333333333333334) internal successors, (124), 121 states have internal predecessors, (124), 26 states have call successors, (26), 14 states have call predecessors, (26), 11 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 04:12:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 172 transitions. [2022-11-23 04:12:45,092 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 172 transitions. Word has length 105 [2022-11-23 04:12:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:12:45,092 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 172 transitions. [2022-11-23 04:12:45,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 105 states have internal predecessors, (144), 13 states have call successors, (21), 6 states have call predecessors, (21), 9 states have return successors, (20), 13 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-23 04:12:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 172 transitions. [2022-11-23 04:12:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-23 04:12:45,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:12:45,094 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 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] [2022-11-23 04:12:45,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:12:45,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-23 04:12:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt [2022-11-23 04:12:45,495 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:12:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:12:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash 831543203, now seen corresponding path program 5 times [2022-11-23 04:12:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:12:45,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530414049] [2022-11-23 04:12:45,496 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 04:12:45,496 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 [2022-11-23 04:12:45,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:12:45,497 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:12:45,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Waiting until timeout for monitored process [2022-11-23 04:12:46,574 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-11-23 04:12:46,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:12:46,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-23 04:12:46,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:12:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 38 proven. 406 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-23 04:12:48,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:13:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 12 proven. 413 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-23 04:13:03,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:13:03,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530414049] [2022-11-23 04:13:03,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530414049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:13:03,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:13:03,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 60 [2022-11-23 04:13:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850859452] [2022-11-23 04:13:03,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:13:03,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-23 04:13:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:13:03,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-23 04:13:03,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=2820, Unknown=0, NotChecked=0, Total=3540 [2022-11-23 04:13:03,050 INFO L87 Difference]: Start difference. First operand 158 states and 172 transitions. Second operand has 60 states, 59 states have (on average 2.2203389830508473) internal successors, (131), 57 states have internal predecessors, (131), 8 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 9 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-23 04:14:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:14:33,525 INFO L93 Difference]: Finished difference Result 296 states and 346 transitions. [2022-11-23 04:14:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-23 04:14:33,531 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 2.2203389830508473) internal successors, (131), 57 states have internal predecessors, (131), 8 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 9 states have call predecessors, (19), 8 states have call successors, (19) Word has length 113 [2022-11-23 04:14:33,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:14:33,532 INFO L225 Difference]: With dead ends: 296 [2022-11-23 04:14:33,532 INFO L226 Difference]: Without dead ends: 226 [2022-11-23 04:14:33,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1797 ImplicationChecksByTransitivity, 87.6s TimeCoverageRelationStatistics Valid=1998, Invalid=7122, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 04:14:33,535 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 1409 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-23 04:14:33,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 1337 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2022-11-23 04:14:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-23 04:14:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 202. [2022-11-23 04:14:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 164 states have (on average 1.0426829268292683) internal successors, (171), 165 states have internal predecessors, (171), 26 states have call successors, (26), 14 states have call predecessors, (26), 11 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 04:14:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 219 transitions. [2022-11-23 04:14:33,664 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 219 transitions. Word has length 113 [2022-11-23 04:14:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:14:33,664 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 219 transitions. [2022-11-23 04:14:33,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 2.2203389830508473) internal successors, (131), 57 states have internal predecessors, (131), 8 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 9 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-23 04:14:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 219 transitions. [2022-11-23 04:14:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-23 04:14:33,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:14:33,666 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 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] [2022-11-23 04:14:33,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 04:14:33,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:14:33,871 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:14:33,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:14:33,871 INFO L85 PathProgramCache]: Analyzing trace with hash -887794901, now seen corresponding path program 6 times [2022-11-23 04:14:33,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:14:33,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056734224] [2022-11-23 04:14:33,872 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 04:14:33,872 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 [2022-11-23 04:14:33,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:14:33,873 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:14:33,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:14:36,576 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2022-11-23 04:14:36,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:14:36,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-23 04:14:36,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:14:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 35 proven. 524 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-23 04:14:40,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:16:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 363 proven. 171 refuted. 2 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-23 04:16:00,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:16:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056734224] [2022-11-23 04:16:00,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056734224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 04:16:00,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:16:00,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 39] total 74 [2022-11-23 04:16:00,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731783521] [2022-11-23 04:16:00,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:16:00,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-11-23 04:16:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:16:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-11-23 04:16:00,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=4619, Unknown=1, NotChecked=0, Total=5402 [2022-11-23 04:16:00,490 INFO L87 Difference]: Start difference. First operand 202 states and 219 transitions. Second operand has 74 states, 72 states have (on average 1.7361111111111112) internal successors, (125), 72 states have internal predecessors, (125), 8 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-11-23 04:16:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:16:18,146 INFO L93 Difference]: Finished difference Result 241 states and 261 transitions. [2022-11-23 04:16:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-23 04:16:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 72 states have (on average 1.7361111111111112) internal successors, (125), 72 states have internal predecessors, (125), 8 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 121 [2022-11-23 04:16:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:16:18,155 INFO L225 Difference]: With dead ends: 241 [2022-11-23 04:16:18,155 INFO L226 Difference]: Without dead ends: 205 [2022-11-23 04:16:18,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2192 ImplicationChecksByTransitivity, 53.6s TimeCoverageRelationStatistics Valid=1259, Invalid=6222, Unknown=1, NotChecked=0, Total=7482 [2022-11-23 04:16:18,157 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 350 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-23 04:16:18,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1439 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-23 04:16:18,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-23 04:16:18,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2022-11-23 04:16:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 166 states have (on average 1.0421686746987953) internal successors, (173), 167 states have internal predecessors, (173), 26 states have call successors, (26), 14 states have call predecessors, (26), 11 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 04:16:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 221 transitions. [2022-11-23 04:16:18,322 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 221 transitions. Word has length 121 [2022-11-23 04:16:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:16:18,322 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 221 transitions. [2022-11-23 04:16:18,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 72 states have (on average 1.7361111111111112) internal successors, (125), 72 states have internal predecessors, (125), 8 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-11-23 04:16:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 221 transitions. [2022-11-23 04:16:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-23 04:16:18,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:16:18,325 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 7, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:16:18,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:16:18,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 04:16:18,533 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:16:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:16:18,534 INFO L85 PathProgramCache]: Analyzing trace with hash -796994365, now seen corresponding path program 2 times [2022-11-23 04:16:18,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 04:16:18,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523596377] [2022-11-23 04:16:18,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 04:16:18,535 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 [2022-11-23 04:16:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 04:16:18,536 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 04:16:18,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/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 (23)] Waiting until timeout for monitored process [2022-11-23 04:16:20,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 04:16:20,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:16:20,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-23 04:16:20,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:16:23,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:23,567 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 [2022-11-23 04:16:25,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:25,480 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 04:16:25,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 120 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 184 treesize of output 232 [2022-11-23 04:16:41,130 INFO L321 Elim1Store]: treesize reduction 126, result has 2.3 percent of original size [2022-11-23 04:16:41,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 120 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 120 treesize of output 55 [2022-11-23 04:16:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 54 proven. 291 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-23 04:16:41,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:16:42,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 04:16:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523596377] [2022-11-23 04:16:42,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523596377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:16:42,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [25609485] [2022-11-23 04:16:42,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 04:16:42,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 04:16:42,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 [2022-11-23 04:16:42,407 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 04:16:42,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ac52a3-d5a3-4506-9131-437fab56e320/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-23 04:16:50,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 04:16:50,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 04:16:50,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 04:16:50,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 04:16:55,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:55,763 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 [2022-11-23 04:16:58,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 04:16:58,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 04:16:58,137 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 04:16:58,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 120 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 135 treesize of output 183 [2022-11-23 04:17:08,721 INFO L321 Elim1Store]: treesize reduction 126, result has 2.3 percent of original size [2022-11-23 04:17:08,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 120 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 120 treesize of output 55 [2022-11-23 04:17:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 60 proven. 279 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 04:17:08,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 04:17:08,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [25609485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 04:17:08,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 04:17:08,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 40] total 70 [2022-11-23 04:17:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702963265] [2022-11-23 04:17:08,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 04:17:08,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-23 04:17:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 04:17:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-23 04:17:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=5154, Unknown=0, NotChecked=0, Total=5550 [2022-11-23 04:17:08,811 INFO L87 Difference]: Start difference. First operand 204 states and 221 transitions. Second operand has 70 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 65 states have internal predecessors, (127), 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) [2022-11-23 04:17:12,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:17:15,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:17:17,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:17:20,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:17:23,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 04:17:25,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]