./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF --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 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:49:09,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:49:09,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:49:09,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:49:09,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:49:09,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:49:09,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:49:09,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:49:09,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:49:09,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:49:09,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:49:09,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:49:09,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:49:09,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:49:09,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:49:09,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:49:09,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:49:09,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:49:09,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:49:09,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:49:09,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:49:09,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:49:09,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:49:09,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:49:09,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:49:09,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:49:09,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:49:09,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:49:09,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:49:09,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:49:09,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:49:09,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:49:09,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:49:09,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:49:09,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:49:09,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:49:09,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:49:09,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:49:09,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:49:09,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:49:09,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:49:09,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:49:09,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:49:09,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:49:09,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:49:09,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:49:09,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:49:09,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:49:09,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:49:09,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:49:09,178 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:49:09,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:49:09,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:49:09,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:49:09,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:49:09,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:49:09,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:49:09,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:49:09,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:49:09,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:49:09,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:49:09,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:49:09,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:49:09,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:49:09,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:49:09,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:49:09,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:49:09,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:49:09,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:49:09,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:49:09,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:49:09,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:49:09,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:49:09,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-20 06:49:09,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:49:09,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:49:09,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:49:09,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:49:09,464 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:49:09,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-20 06:49:09,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/data/cb44acde9/e57bbd937bb4445a92f49c0e38b67720/FLAGe0611b7a5 [2021-11-20 06:49:10,335 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:49:10,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-20 06:49:10,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/data/cb44acde9/e57bbd937bb4445a92f49c0e38b67720/FLAGe0611b7a5 [2021-11-20 06:49:10,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/data/cb44acde9/e57bbd937bb4445a92f49c0e38b67720 [2021-11-20 06:49:10,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:49:10,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:49:10,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:49:10,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:49:10,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:49:10,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:10" (1/1) ... [2021-11-20 06:49:10,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5732ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:10, skipping insertion in model container [2021-11-20 06:49:10,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:10" (1/1) ... [2021-11-20 06:49:10,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:49:11,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:49:11,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-20 06:49:11,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-20 06:49:12,100 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:49:12,177 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,178 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,180 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,182 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,200 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,201 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,573 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:49:12,574 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:49:12,576 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:49:12,577 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:49:12,578 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:49:12,579 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:49:12,580 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:49:12,581 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:49:12,581 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:49:12,582 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:49:12,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:12,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:49:12,917 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:49:12,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-20 06:49:12,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-20 06:49:12,996 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:49:13,013 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,014 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,014 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,015 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,016 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,023 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,024 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,026 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,026 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,064 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:49:13,065 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:49:13,066 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:49:13,067 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:49:13,068 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:49:13,068 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:49:13,069 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:49:13,070 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:49:13,070 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:49:13,071 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:49:13,111 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,111 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:49:13,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:49:13,495 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:49:13,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13 WrapperNode [2021-11-20 06:49:13,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:49:13,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:49:13,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:49:13,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:49:13,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,747 INFO L137 Inliner]: procedures = 689, calls = 1531, calls flagged for inlining = 55, calls inlined = 10, statements flattened = 667 [2021-11-20 06:49:13,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:49:13,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:49:13,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:49:13,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:49:13,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:49:13,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:49:13,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:49:13,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:49:13,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (1/1) ... [2021-11-20 06:49:13,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:49:13,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:13,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:49:13,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:49:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-20 06:49:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-20 06:49:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:49:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-20 06:49:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-20 06:49:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-20 06:49:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-20 06:49:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 06:49:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 06:49:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:49:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-20 06:49:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-20 06:49:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:49:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:49:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:49:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:49:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-20 06:49:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-20 06:49:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:49:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:49:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:49:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 06:49:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 06:49:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-20 06:49:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-20 06:49:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-20 06:49:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-20 06:49:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-20 06:49:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-20 06:49:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-20 06:49:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-20 06:49:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:49:14,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:49:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:49:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:49:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:49:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-20 06:49:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-20 06:49:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-20 06:49:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-20 06:49:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:49:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-20 06:49:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-20 06:49:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:49:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:49:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:49:14,426 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:49:14,428 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:49:15,747 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:49:15,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:49:15,756 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:49:15,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:15 BoogieIcfgContainer [2021-11-20 06:49:15,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:49:15,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:49:15,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:49:15,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:49:15,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:49:10" (1/3) ... [2021-11-20 06:49:15,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49645e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:15, skipping insertion in model container [2021-11-20 06:49:15,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:13" (2/3) ... [2021-11-20 06:49:15,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49645e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:15, skipping insertion in model container [2021-11-20 06:49:15,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:15" (3/3) ... [2021-11-20 06:49:15,774 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2021-11-20 06:49:15,783 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:49:15,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:49:15,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:49:15,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:49:15,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:49:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-20 06:49:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 06:49:15,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:15,899 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:15,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1923135121, now seen corresponding path program 1 times [2021-11-20 06:49:15,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:15,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10176184] [2021-11-20 06:49:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:15,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:49:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:49:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:49:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:49:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:49:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:49:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:49:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:49:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:49:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:49:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-20 06:49:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:49:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:49:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-20 06:49:16,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:16,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10176184] [2021-11-20 06:49:16,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10176184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:16,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:16,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:49:16,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887316956] [2021-11-20 06:49:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:16,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:49:16,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:49:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:49:16,906 INFO L87 Difference]: Start difference. First operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 06:49:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:17,574 INFO L93 Difference]: Finished difference Result 399 states and 564 transitions. [2021-11-20 06:49:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:49:17,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2021-11-20 06:49:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:17,590 INFO L225 Difference]: With dead ends: 399 [2021-11-20 06:49:17,590 INFO L226 Difference]: Without dead ends: 234 [2021-11-20 06:49:17,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:49:17,600 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 131 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:17,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 356 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:49:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-20 06:49:17,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 166. [2021-11-20 06:49:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 06:49:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2021-11-20 06:49:17,667 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 107 [2021-11-20 06:49:17,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:17,668 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2021-11-20 06:49:17,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 06:49:17,668 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2021-11-20 06:49:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 06:49:17,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:17,675 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:17,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:49:17,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1898390481, now seen corresponding path program 1 times [2021-11-20 06:49:17,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:17,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631452011] [2021-11-20 06:49:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:17,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:49:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:49:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:49:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:49:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:49:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:49:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:49:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:49:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:49:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:49:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-20 06:49:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:49:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:49:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-20 06:49:18,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:18,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631452011] [2021-11-20 06:49:18,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631452011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:18,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:18,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:49:18,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540554094] [2021-11-20 06:49:18,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:18,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:49:18,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:18,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:49:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:49:18,259 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-20 06:49:19,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:19,098 INFO L93 Difference]: Finished difference Result 358 states and 477 transitions. [2021-11-20 06:49:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:49:19,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 107 [2021-11-20 06:49:19,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:19,103 INFO L225 Difference]: With dead ends: 358 [2021-11-20 06:49:19,104 INFO L226 Difference]: Without dead ends: 234 [2021-11-20 06:49:19,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:49:19,106 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 288 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:19,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 580 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:49:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-20 06:49:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 166. [2021-11-20 06:49:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 06:49:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 208 transitions. [2021-11-20 06:49:19,135 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 208 transitions. Word has length 107 [2021-11-20 06:49:19,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:19,136 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 208 transitions. [2021-11-20 06:49:19,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-20 06:49:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 208 transitions. [2021-11-20 06:49:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-20 06:49:19,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:19,139 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:19,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:49:19,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash 413511437, now seen corresponding path program 1 times [2021-11-20 06:49:19,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:19,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483910439] [2021-11-20 06:49:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:19,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:49:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:49:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:49:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:49:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:49:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:49:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:49:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:49:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:49:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:49:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:49:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:49:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:49:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:49:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 06:49:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:49:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-20 06:49:19,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:19,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483910439] [2021-11-20 06:49:19,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483910439] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:49:19,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631795154] [2021-11-20 06:49:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:19,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:19,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:19,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:49:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:20,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:49:20,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-20 06:49:20,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:20,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631795154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:20,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:49:20,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-11-20 06:49:20,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874660157] [2021-11-20 06:49:20,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:20,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:49:20,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:20,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:49:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:49:20,529 INFO L87 Difference]: Start difference. First operand 166 states and 208 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-20 06:49:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:20,711 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2021-11-20 06:49:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:49:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 115 [2021-11-20 06:49:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:20,716 INFO L225 Difference]: With dead ends: 309 [2021-11-20 06:49:20,716 INFO L226 Difference]: Without dead ends: 168 [2021-11-20 06:49:20,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:49:20,722 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 81 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:20,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1075 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:49:20,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-20 06:49:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-20 06:49:20,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2) internal successors, (132), 112 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-20 06:49:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 212 transitions. [2021-11-20 06:49:20,757 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 212 transitions. Word has length 115 [2021-11-20 06:49:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:20,760 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 212 transitions. [2021-11-20 06:49:20,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-20 06:49:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 212 transitions. [2021-11-20 06:49:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 06:49:20,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:20,770 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:20,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:20,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:20,990 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash -445935835, now seen corresponding path program 1 times [2021-11-20 06:49:20,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:20,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091575340] [2021-11-20 06:49:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:20,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:21,054 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:21,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133719871] [2021-11-20 06:49:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:21,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:21,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:21,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:21,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:49:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:21,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:49:21,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:49:21,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:21,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:21,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091575340] [2021-11-20 06:49:21,786 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:21,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133719871] [2021-11-20 06:49:21,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133719871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:21,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:21,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:49:21,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042549179] [2021-11-20 06:49:21,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:21,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:49:21,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:21,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:49:21,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:49:21,789 INFO L87 Difference]: Start difference. First operand 168 states and 212 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 06:49:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:21,824 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2021-11-20 06:49:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:49:21,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2021-11-20 06:49:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:21,828 INFO L225 Difference]: With dead ends: 297 [2021-11-20 06:49:21,828 INFO L226 Difference]: Without dead ends: 173 [2021-11-20 06:49:21,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:49:21,830 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 10 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:21,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-20 06:49:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2021-11-20 06:49:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 114 states have internal predecessors, (134), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-20 06:49:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 214 transitions. [2021-11-20 06:49:21,853 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 214 transitions. Word has length 130 [2021-11-20 06:49:21,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:21,855 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 214 transitions. [2021-11-20 06:49:21,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 06:49:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 214 transitions. [2021-11-20 06:49:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 06:49:21,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:21,858 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:21,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 06:49:22,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:22,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:22,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:22,074 INFO L85 PathProgramCache]: Analyzing trace with hash -879664921, now seen corresponding path program 1 times [2021-11-20 06:49:22,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:22,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629773100] [2021-11-20 06:49:22,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:22,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:22,130 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:22,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474689828] [2021-11-20 06:49:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:22,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:22,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:22,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:22,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:49:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:22,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:49:22,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-20 06:49:22,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:22,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:22,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629773100] [2021-11-20 06:49:22,899 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:22,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474689828] [2021-11-20 06:49:22,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474689828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:22,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:22,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:49:22,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487817570] [2021-11-20 06:49:22,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:22,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:49:22,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:22,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:49:22,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:49:22,902 INFO L87 Difference]: Start difference. First operand 170 states and 214 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:49:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:23,088 INFO L93 Difference]: Finished difference Result 299 states and 378 transitions. [2021-11-20 06:49:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:49:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 130 [2021-11-20 06:49:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:23,094 INFO L225 Difference]: With dead ends: 299 [2021-11-20 06:49:23,094 INFO L226 Difference]: Without dead ends: 170 [2021-11-20 06:49:23,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:49:23,096 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 243 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:23,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 830 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:49:23,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-20 06:49:23,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-20 06:49:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-20 06:49:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2021-11-20 06:49:23,116 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 130 [2021-11-20 06:49:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:23,116 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2021-11-20 06:49:23,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:49:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2021-11-20 06:49:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-20 06:49:23,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:23,120 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:23,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:23,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:23,346 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:23,346 INFO L85 PathProgramCache]: Analyzing trace with hash 391202648, now seen corresponding path program 1 times [2021-11-20 06:49:23,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:23,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341334947] [2021-11-20 06:49:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:23,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:23,412 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:23,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057192128] [2021-11-20 06:49:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:23,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:23,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:23,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:49:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:23,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:49:23,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-20 06:49:24,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:24,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:24,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341334947] [2021-11-20 06:49:24,324 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:24,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057192128] [2021-11-20 06:49:24,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057192128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:24,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:24,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:49:24,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496298308] [2021-11-20 06:49:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:24,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:49:24,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:49:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:49:24,346 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-20 06:49:24,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:24,579 INFO L93 Difference]: Finished difference Result 312 states and 395 transitions. [2021-11-20 06:49:24,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:49:24,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 146 [2021-11-20 06:49:24,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:24,582 INFO L225 Difference]: With dead ends: 312 [2021-11-20 06:49:24,582 INFO L226 Difference]: Without dead ends: 170 [2021-11-20 06:49:24,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:49:24,584 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:24,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 1200 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:49:24,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-20 06:49:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-20 06:49:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-20 06:49:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2021-11-20 06:49:24,601 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 146 [2021-11-20 06:49:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:24,602 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2021-11-20 06:49:24,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-20 06:49:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2021-11-20 06:49:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-20 06:49:24,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:24,605 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:24,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:24,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 06:49:24,822 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1071073244, now seen corresponding path program 2 times [2021-11-20 06:49:24,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:24,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153974651] [2021-11-20 06:49:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:24,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:24,876 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:24,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138127249] [2021-11-20 06:49:24,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:49:24,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:24,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:24,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:24,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:49:25,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:49:25,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:49:25,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:49:25,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-20 06:49:25,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:25,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153974651] [2021-11-20 06:49:25,871 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138127249] [2021-11-20 06:49:25,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138127249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:25,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:25,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:49:25,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49054336] [2021-11-20 06:49:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:25,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:49:25,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:49:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:49:25,874 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-20 06:49:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:26,161 INFO L93 Difference]: Finished difference Result 277 states and 343 transitions. [2021-11-20 06:49:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:49:26,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 161 [2021-11-20 06:49:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:26,166 INFO L225 Difference]: With dead ends: 277 [2021-11-20 06:49:26,166 INFO L226 Difference]: Without dead ends: 168 [2021-11-20 06:49:26,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:49:26,167 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 213 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:26,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 1147 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:49:26,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-20 06:49:26,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-20 06:49:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 112 states have internal predecessors, (131), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 06:49:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2021-11-20 06:49:26,184 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 161 [2021-11-20 06:49:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:26,185 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2021-11-20 06:49:26,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-20 06:49:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2021-11-20 06:49:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-20 06:49:26,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:26,190 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:26,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:26,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:26,394 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:26,395 INFO L85 PathProgramCache]: Analyzing trace with hash 153523288, now seen corresponding path program 1 times [2021-11-20 06:49:26,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:26,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419165164] [2021-11-20 06:49:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:26,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:26,463 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:26,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27975319] [2021-11-20 06:49:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:26,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:26,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:26,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:49:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:26,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2833 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:49:26,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 06:49:27,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:27,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:27,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419165164] [2021-11-20 06:49:27,454 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:27,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27975319] [2021-11-20 06:49:27,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27975319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:27,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:27,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:49:27,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745654539] [2021-11-20 06:49:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:27,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:49:27,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:27,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:49:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:49:27,457 INFO L87 Difference]: Start difference. First operand 168 states and 208 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:49:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:27,741 INFO L93 Difference]: Finished difference Result 310 states and 389 transitions. [2021-11-20 06:49:27,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:49:27,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2021-11-20 06:49:27,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:27,744 INFO L225 Difference]: With dead ends: 310 [2021-11-20 06:49:27,744 INFO L226 Difference]: Without dead ends: 186 [2021-11-20 06:49:27,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:49:27,745 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 21 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:27,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 903 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:49:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-11-20 06:49:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2021-11-20 06:49:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 115 states have (on average 1.182608695652174) internal successors, (136), 116 states have internal predecessors, (136), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 06:49:27,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2021-11-20 06:49:27,791 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 191 [2021-11-20 06:49:27,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:27,792 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2021-11-20 06:49:27,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:49:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2021-11-20 06:49:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-20 06:49:27,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:27,795 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:27,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:27,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:27,995 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:27,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1805051498, now seen corresponding path program 1 times [2021-11-20 06:49:27,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:27,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068743294] [2021-11-20 06:49:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:27,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:28,089 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:28,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469470825] [2021-11-20 06:49:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:28,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:28,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:28,091 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:28,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:49:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:28,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:49:28,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 06:49:28,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:49:28,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:28,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068743294] [2021-11-20 06:49:28,972 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:49:28,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469470825] [2021-11-20 06:49:28,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469470825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:28,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:28,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:49:28,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178271729] [2021-11-20 06:49:28,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:28,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:49:28,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:28,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:49:28,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:49:28,976 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:49:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:29,030 INFO L93 Difference]: Finished difference Result 304 states and 379 transitions. [2021-11-20 06:49:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:49:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2021-11-20 06:49:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:29,033 INFO L225 Difference]: With dead ends: 304 [2021-11-20 06:49:29,033 INFO L226 Difference]: Without dead ends: 176 [2021-11-20 06:49:29,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:49:29,035 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:29,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 604 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:49:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-20 06:49:29,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2021-11-20 06:49:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.1794871794871795) internal successors, (138), 118 states have internal predecessors, (138), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 06:49:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2021-11-20 06:49:29,049 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 215 transitions. Word has length 191 [2021-11-20 06:49:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:29,050 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 215 transitions. [2021-11-20 06:49:29,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:49:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 215 transitions. [2021-11-20 06:49:29,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-20 06:49:29,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:29,053 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:29,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:49:29,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 06:49:29,274 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:29,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:29,274 INFO L85 PathProgramCache]: Analyzing trace with hash 610784852, now seen corresponding path program 1 times [2021-11-20 06:49:29,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:29,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677231126] [2021-11-20 06:49:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:29,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:29,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:49:29,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487268347] [2021-11-20 06:49:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:29,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:49:29,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:49:29,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:49:29,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 06:49:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:29,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-20 06:49:29,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:49:29,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:49:30,527 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 06:49:30,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:49:32,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:49:32,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:49:36,054 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:49:46,480 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:50:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 127 proven. 20 refuted. 0 times theorem prover too weak. 43 trivial. 3 not checked. [2021-11-20 06:50:08,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:50:19,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:50:19,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677231126] [2021-11-20 06:50:19,916 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:50:19,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487268347] [2021-11-20 06:50:19,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487268347] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:50:19,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:50:19,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2021-11-20 06:50:19,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140371947] [2021-11-20 06:50:19,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:50:19,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-20 06:50:19,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:50:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-20 06:50:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=999, Unknown=21, NotChecked=130, Total=1260 [2021-11-20 06:50:19,921 INFO L87 Difference]: Start difference. First operand 174 states and 215 transitions. Second operand has 29 states, 27 states have (on average 4.0) internal successors, (108), 26 states have internal predecessors, (108), 12 states have call successors, (27), 7 states have call predecessors, (27), 10 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) [2021-11-20 06:50:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:50:56,488 INFO L93 Difference]: Finished difference Result 383 states and 490 transitions. [2021-11-20 06:50:56,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-20 06:50:56,489 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.0) internal successors, (108), 26 states have internal predecessors, (108), 12 states have call successors, (27), 7 states have call predecessors, (27), 10 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) Word has length 191 [2021-11-20 06:50:56,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:50:56,492 INFO L225 Difference]: With dead ends: 383 [2021-11-20 06:50:56,492 INFO L226 Difference]: Without dead ends: 253 [2021-11-20 06:50:56,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 252 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 83.5s TimeCoverageRelationStatistics Valid=180, Invalid=1771, Unknown=37, NotChecked=174, Total=2162 [2021-11-20 06:50:56,496 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 284 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2084 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:50:56,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 1243 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 895 Invalid, 0 Unknown, 2084 Unchecked, 1.1s Time] [2021-11-20 06:50:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-20 06:50:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 214. [2021-11-20 06:50:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 149 states have (on average 1.1812080536912752) internal successors, (176), 150 states have internal predecessors, (176), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (51), 42 states have call predecessors, (51), 40 states have call successors, (51) [2021-11-20 06:50:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 268 transitions. [2021-11-20 06:50:56,515 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 268 transitions. Word has length 191 [2021-11-20 06:50:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:50:56,516 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 268 transitions. [2021-11-20 06:50:56,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.0) internal successors, (108), 26 states have internal predecessors, (108), 12 states have call successors, (27), 7 states have call predecessors, (27), 10 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) [2021-11-20 06:50:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 268 transitions. [2021-11-20 06:50:56,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 06:50:56,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:50:56,519 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:50:56,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:50:56,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:50:56,746 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:50:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:50:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash -419568772, now seen corresponding path program 1 times [2021-11-20 06:50:56,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:50:56,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190362048] [2021-11-20 06:50:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:50:56,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:50:56,813 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:50:56,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113846443] [2021-11-20 06:50:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:50:56,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:50:56,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:50:56,814 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:50:56,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 06:50:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:57,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:50:57,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:50:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-20 06:50:57,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:50:57,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:50:57,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190362048] [2021-11-20 06:50:57,797 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:50:57,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113846443] [2021-11-20 06:50:57,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113846443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:50:57,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:50:57,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:50:57,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975862031] [2021-11-20 06:50:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:50:57,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:50:57,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:50:57,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:50:57,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:50:57,801 INFO L87 Difference]: Start difference. First operand 214 states and 268 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:50:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:50:58,083 INFO L93 Difference]: Finished difference Result 378 states and 492 transitions. [2021-11-20 06:50:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:50:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 193 [2021-11-20 06:50:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:50:58,086 INFO L225 Difference]: With dead ends: 378 [2021-11-20 06:50:58,086 INFO L226 Difference]: Without dead ends: 219 [2021-11-20 06:50:58,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:50:58,087 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 7 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:50:58,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 755 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:50:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-20 06:50:58,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2021-11-20 06:50:58,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 150 states have (on average 1.18) internal successors, (177), 151 states have internal predecessors, (177), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (51), 42 states have call predecessors, (51), 40 states have call successors, (51) [2021-11-20 06:50:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 269 transitions. [2021-11-20 06:50:58,107 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 269 transitions. Word has length 193 [2021-11-20 06:50:58,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:50:58,107 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 269 transitions. [2021-11-20 06:50:58,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:50:58,108 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 269 transitions. [2021-11-20 06:50:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 06:50:58,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:50:58,111 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:50:58,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:50:58,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 06:50:58,338 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:50:58,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:50:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2032922810, now seen corresponding path program 1 times [2021-11-20 06:50:58,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:50:58,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218337872] [2021-11-20 06:50:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:50:58,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:50:58,413 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:50:58,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898722850] [2021-11-20 06:50:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:50:58,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:50:58,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:50:58,417 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:50:58,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 06:50:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:58,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 138 conjunts are in the unsatisfiable core [2021-11-20 06:50:58,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:51:45,217 INFO L354 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2021-11-20 06:51:45,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 94 [2021-11-20 06:51:45,288 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-20 06:51:45,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 100 [2021-11-20 06:51:45,331 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-20 06:51:45,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 98 [2021-11-20 06:51:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 122 proven. 6 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-20 06:51:53,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:51:55,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:51:55,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218337872] [2021-11-20 06:51:55,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:51:55,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898722850] [2021-11-20 06:51:55,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898722850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:51:55,480 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:51:55,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2021-11-20 06:51:55,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501258413] [2021-11-20 06:51:55,480 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:51:55,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 06:51:55,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:51:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:51:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=941, Unknown=21, NotChecked=0, Total=1056 [2021-11-20 06:51:55,482 INFO L87 Difference]: Start difference. First operand 215 states and 269 transitions. Second operand has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 19 states have internal predecessors, (96), 8 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2021-11-20 06:52:57,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:52:57,310 INFO L93 Difference]: Finished difference Result 512 states and 662 transitions. [2021-11-20 06:52:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-20 06:52:57,311 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 19 states have internal predecessors, (96), 8 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 193 [2021-11-20 06:52:57,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:52:57,315 INFO L225 Difference]: With dead ends: 512 [2021-11-20 06:52:57,315 INFO L226 Difference]: Without dead ends: 352 [2021-11-20 06:52:57,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 111.7s TimeCoverageRelationStatistics Valid=193, Invalid=1739, Unknown=48, NotChecked=0, Total=1980 [2021-11-20 06:52:57,318 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 210 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 977 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:52:57,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1202 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1520 Invalid, 0 Unknown, 977 Unchecked, 2.0s Time] [2021-11-20 06:52:57,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-20 06:52:57,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 284. [2021-11-20 06:52:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.1691542288557213) internal successors, (235), 205 states have internal predecessors, (235), 49 states have call successors, (49), 27 states have call predecessors, (49), 33 states have return successors, (76), 51 states have call predecessors, (76), 48 states have call successors, (76) [2021-11-20 06:52:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 360 transitions. [2021-11-20 06:52:57,349 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 360 transitions. Word has length 193 [2021-11-20 06:52:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:52:57,350 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 360 transitions. [2021-11-20 06:52:57,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 19 states have internal predecessors, (96), 8 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2021-11-20 06:52:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 360 transitions. [2021-11-20 06:52:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 06:52:57,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:52:57,354 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:52:57,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:52:57,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:52:57,575 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:52:57,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:52:57,576 INFO L85 PathProgramCache]: Analyzing trace with hash 580967548, now seen corresponding path program 1 times [2021-11-20 06:52:57,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:52:57,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325037794] [2021-11-20 06:52:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:52:57,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:52:57,668 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:52:57,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500042614] [2021-11-20 06:52:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:52:57,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:52:57,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:52:57,670 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:52:57,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 06:52:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:52:58,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2833 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 06:52:58,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:52:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 06:52:58,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:52:58,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:52:58,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325037794] [2021-11-20 06:52:58,713 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:52:58,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500042614] [2021-11-20 06:52:58,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500042614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:52:58,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:52:58,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:52:58,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737428991] [2021-11-20 06:52:58,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:52:58,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:52:58,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:52:58,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:52:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:52:58,715 INFO L87 Difference]: Start difference. First operand 284 states and 360 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:52:58,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:52:58,779 INFO L93 Difference]: Finished difference Result 527 states and 679 transitions. [2021-11-20 06:52:58,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:52:58,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 193 [2021-11-20 06:52:58,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:52:58,783 INFO L225 Difference]: With dead ends: 527 [2021-11-20 06:52:58,783 INFO L226 Difference]: Without dead ends: 298 [2021-11-20 06:52:58,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:52:58,787 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 8 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:52:58,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 842 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:52:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-20 06:52:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 292. [2021-11-20 06:52:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 209 states have (on average 1.1722488038277512) internal successors, (245), 213 states have internal predecessors, (245), 49 states have call successors, (49), 27 states have call predecessors, (49), 33 states have return successors, (76), 51 states have call predecessors, (76), 48 states have call successors, (76) [2021-11-20 06:52:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-11-20 06:52:58,836 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 370 transitions. Word has length 193 [2021-11-20 06:52:58,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:52:58,837 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-11-20 06:52:58,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 06:52:58,838 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 370 transitions. [2021-11-20 06:52:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-20 06:52:58,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:52:58,841 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:52:58,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:52:59,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 06:52:59,066 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:52:59,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:52:59,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1134599946, now seen corresponding path program 1 times [2021-11-20 06:52:59,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:52:59,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746977713] [2021-11-20 06:52:59,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:52:59,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:52:59,145 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:52:59,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876056711] [2021-11-20 06:52:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:52:59,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:52:59,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:52:59,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:52:59,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 06:52:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:52:59,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 2851 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:52:59,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:00,136 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 06:53:00,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:00,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:00,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746977713] [2021-11-20 06:53:00,137 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:53:00,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876056711] [2021-11-20 06:53:00,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876056711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:00,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:00,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:53:00,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059228860] [2021-11-20 06:53:00,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:00,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:53:00,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:00,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:53:00,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:53:00,142 INFO L87 Difference]: Start difference. First operand 292 states and 370 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:53:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:00,203 INFO L93 Difference]: Finished difference Result 526 states and 675 transitions. [2021-11-20 06:53:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:53:00,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 199 [2021-11-20 06:53:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:00,207 INFO L225 Difference]: With dead ends: 526 [2021-11-20 06:53:00,208 INFO L226 Difference]: Without dead ends: 289 [2021-11-20 06:53:00,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:53:00,210 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 2 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:53:00,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 607 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-20 06:53:00,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2021-11-20 06:53:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 203 states have (on average 1.1625615763546797) internal successors, (236), 207 states have internal predecessors, (236), 49 states have call successors, (49), 27 states have call predecessors, (49), 33 states have return successors, (76), 51 states have call predecessors, (76), 48 states have call successors, (76) [2021-11-20 06:53:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 361 transitions. [2021-11-20 06:53:00,235 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 361 transitions. Word has length 199 [2021-11-20 06:53:00,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:00,235 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 361 transitions. [2021-11-20 06:53:00,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:53:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 361 transitions. [2021-11-20 06:53:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-20 06:53:00,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:00,239 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:00,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:00,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 06:53:00,458 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1662144632, now seen corresponding path program 1 times [2021-11-20 06:53:00,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:00,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426481130] [2021-11-20 06:53:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:00,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:00,529 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:53:00,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606618238] [2021-11-20 06:53:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:00,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:00,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:00,531 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:00,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 06:53:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:01,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2878 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-20 06:53:01,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-20 06:53:01,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:01,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426481130] [2021-11-20 06:53:01,768 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:53:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606618238] [2021-11-20 06:53:01,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606618238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:01,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:01,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-20 06:53:01,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264623177] [2021-11-20 06:53:01,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:01,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:53:01,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:53:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:53:01,772 INFO L87 Difference]: Start difference. First operand 286 states and 361 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-20 06:53:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:02,098 INFO L93 Difference]: Finished difference Result 494 states and 620 transitions. [2021-11-20 06:53:02,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:53:02,101 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 211 [2021-11-20 06:53:02,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:02,104 INFO L225 Difference]: With dead ends: 494 [2021-11-20 06:53:02,105 INFO L226 Difference]: Without dead ends: 293 [2021-11-20 06:53:02,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:53:02,107 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 12 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:53:02,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 2688 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:53:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-20 06:53:02,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 282. [2021-11-20 06:53:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 202 states have (on average 1.1633663366336633) internal successors, (235), 206 states have internal predecessors, (235), 46 states have call successors, (46), 27 states have call predecessors, (46), 33 states have return successors, (67), 48 states have call predecessors, (67), 45 states have call successors, (67) [2021-11-20 06:53:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2021-11-20 06:53:02,134 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 211 [2021-11-20 06:53:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:02,135 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2021-11-20 06:53:02,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-20 06:53:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2021-11-20 06:53:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-20 06:53:02,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:02,139 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:02,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:02,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 06:53:02,354 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:02,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1624571116, now seen corresponding path program 2 times [2021-11-20 06:53:02,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:02,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163289572] [2021-11-20 06:53:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:02,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:02,421 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:53:02,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51966260] [2021-11-20 06:53:02,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:53:02,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:02,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:02,423 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:02,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-20 06:53:04,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:53:04,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:53:04,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-20 06:53:04,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-20 06:53:05,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:05,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:05,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163289572] [2021-11-20 06:53:05,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:53:05,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51966260] [2021-11-20 06:53:05,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51966260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:05,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:05,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:53:05,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837290148] [2021-11-20 06:53:05,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:05,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:53:05,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:53:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:53:05,024 INFO L87 Difference]: Start difference. First operand 282 states and 348 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2021-11-20 06:53:07,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:07,588 INFO L93 Difference]: Finished difference Result 591 states and 747 transitions. [2021-11-20 06:53:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 06:53:07,589 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 199 [2021-11-20 06:53:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:07,592 INFO L225 Difference]: With dead ends: 591 [2021-11-20 06:53:07,592 INFO L226 Difference]: Without dead ends: 364 [2021-11-20 06:53:07,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:53:07,594 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 202 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:53:07,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1152 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 06:53:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-20 06:53:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 283. [2021-11-20 06:53:07,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 203 states have (on average 1.1625615763546797) internal successors, (236), 208 states have internal predecessors, (236), 45 states have call successors, (45), 27 states have call predecessors, (45), 34 states have return successors, (65), 47 states have call predecessors, (65), 44 states have call successors, (65) [2021-11-20 06:53:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2021-11-20 06:53:07,615 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 199 [2021-11-20 06:53:07,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:07,615 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2021-11-20 06:53:07,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2021-11-20 06:53:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2021-11-20 06:53:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 06:53:07,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:07,618 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:07,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:07,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 06:53:07,839 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:07,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:07,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1005233518, now seen corresponding path program 3 times [2021-11-20 06:53:07,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:07,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347397558] [2021-11-20 06:53:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:07,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:07,898 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:53:07,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108591227] [2021-11-20 06:53:07,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:53:07,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:07,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:07,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:07,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-20 06:53:10,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-20 06:53:10,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:53:10,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-20 06:53:10,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:18,387 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-20 06:53:18,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 74 [2021-11-20 06:53:18,398 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-20 06:53:18,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 48 [2021-11-20 06:53:18,406 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-20 06:53:18,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 22 [2021-11-20 06:53:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 131 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-20 06:53:18,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:53:19,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:19,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347397558] [2021-11-20 06:53:19,968 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:53:19,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108591227] [2021-11-20 06:53:19,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108591227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:19,969 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:19,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2021-11-20 06:53:19,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912718450] [2021-11-20 06:53:19,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:53:19,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 06:53:19,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 06:53:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=721, Unknown=3, NotChecked=0, Total=812 [2021-11-20 06:53:19,971 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 8 states have call successors, (23) [2021-11-20 06:53:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:26,902 INFO L93 Difference]: Finished difference Result 625 states and 786 transitions. [2021-11-20 06:53:26,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-20 06:53:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 8 states have call successors, (23) Word has length 201 [2021-11-20 06:53:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:26,907 INFO L225 Difference]: With dead ends: 625 [2021-11-20 06:53:26,907 INFO L226 Difference]: Without dead ends: 409 [2021-11-20 06:53:26,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=427, Invalid=3230, Unknown=3, NotChecked=0, Total=3660 [2021-11-20 06:53:26,911 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 250 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 288 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:53:26,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1500 Invalid, 3999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 3590 Invalid, 0 Unknown, 288 Unchecked, 4.3s Time] [2021-11-20 06:53:26,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-20 06:53:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 300. [2021-11-20 06:53:26,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 213 states have (on average 1.1549295774647887) internal successors, (246), 220 states have internal predecessors, (246), 49 states have call successors, (49), 28 states have call predecessors, (49), 37 states have return successors, (74), 51 states have call predecessors, (74), 48 states have call successors, (74) [2021-11-20 06:53:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 369 transitions. [2021-11-20 06:53:26,968 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 369 transitions. Word has length 201 [2021-11-20 06:53:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:26,969 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 369 transitions. [2021-11-20 06:53:26,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 8 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 8 states have call successors, (23) [2021-11-20 06:53:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 369 transitions. [2021-11-20 06:53:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-20 06:53:26,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:26,973 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:26,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:27,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 06:53:27,193 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:27,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2109144600, now seen corresponding path program 1 times [2021-11-20 06:53:27,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:27,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954135023] [2021-11-20 06:53:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:27,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:27,270 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:53:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590839374] [2021-11-20 06:53:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:27,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:27,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:27,272 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:27,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-20 06:53:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:27,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-20 06:53:27,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:27,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:53:28,542 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 06:53:28,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:53:38,587 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 06:53:38,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 20 [2021-11-20 06:53:38,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:53:38,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:53:40,804 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:53:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 125 proven. 38 refuted. 3 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-20 06:53:55,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:53:59,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:59,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954135023] [2021-11-20 06:53:59,471 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:53:59,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590839374] [2021-11-20 06:53:59,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590839374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:59,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2021-11-20 06:53:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156299372] [2021-11-20 06:53:59,472 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:53:59,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-20 06:53:59,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:59,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-20 06:53:59,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=603, Unknown=11, NotChecked=50, Total=756 [2021-11-20 06:53:59,473 INFO L87 Difference]: Start difference. First operand 300 states and 369 transitions. Second operand has 27 states, 25 states have (on average 4.6) internal successors, (115), 21 states have internal predecessors, (115), 12 states have call successors, (28), 7 states have call predecessors, (28), 9 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) [2021-11-20 06:54:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:04,099 INFO L93 Difference]: Finished difference Result 615 states and 782 transitions. [2021-11-20 06:54:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 06:54:04,099 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.6) internal successors, (115), 21 states have internal predecessors, (115), 12 states have call successors, (28), 7 states have call predecessors, (28), 9 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) Word has length 202 [2021-11-20 06:54:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:04,103 INFO L225 Difference]: With dead ends: 615 [2021-11-20 06:54:04,103 INFO L226 Difference]: Without dead ends: 373 [2021-11-20 06:54:04,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 255 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=138, Invalid=911, Unknown=11, NotChecked=62, Total=1122 [2021-11-20 06:54:04,106 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 256 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1494 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:04,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1336 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1029 Invalid, 0 Unknown, 1494 Unchecked, 1.5s Time] [2021-11-20 06:54:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-11-20 06:54:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 323. [2021-11-20 06:54:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 231 states have (on average 1.155844155844156) internal successors, (267), 239 states have internal predecessors, (267), 52 states have call successors, (52), 28 states have call predecessors, (52), 39 states have return successors, (87), 55 states have call predecessors, (87), 51 states have call successors, (87) [2021-11-20 06:54:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 406 transitions. [2021-11-20 06:54:04,139 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 406 transitions. Word has length 202 [2021-11-20 06:54:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:04,139 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 406 transitions. [2021-11-20 06:54:04,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.6) internal successors, (115), 21 states have internal predecessors, (115), 12 states have call successors, (28), 7 states have call predecessors, (28), 9 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) [2021-11-20 06:54:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 406 transitions. [2021-11-20 06:54:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-20 06:54:04,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:04,143 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:04,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:54:04,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 06:54:04,358 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1004679859, now seen corresponding path program 1 times [2021-11-20 06:54:04,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:04,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658892650] [2021-11-20 06:54:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:04,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:04,418 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:54:04,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466400032] [2021-11-20 06:54:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:04,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:54:04,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:54:04,420 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:54:04,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-20 06:54:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:04,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-20 06:54:04,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:54:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-20 06:54:05,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:54:05,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:05,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658892650] [2021-11-20 06:54:05,398 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:54:05,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466400032] [2021-11-20 06:54:05,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466400032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:05,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:05,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:54:05,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440358720] [2021-11-20 06:54:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:05,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:54:05,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:54:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:54:05,401 INFO L87 Difference]: Start difference. First operand 323 states and 406 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 06:54:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:05,550 INFO L93 Difference]: Finished difference Result 604 states and 769 transitions. [2021-11-20 06:54:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:54:05,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2021-11-20 06:54:05,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:05,563 INFO L225 Difference]: With dead ends: 604 [2021-11-20 06:54:05,563 INFO L226 Difference]: Without dead ends: 342 [2021-11-20 06:54:05,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:54:05,566 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 13 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:05,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 2178 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:54:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-20 06:54:05,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 324. [2021-11-20 06:54:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 233 states have (on average 1.1545064377682404) internal successors, (269), 239 states have internal predecessors, (269), 52 states have call successors, (52), 28 states have call predecessors, (52), 38 states have return successors, (84), 56 states have call predecessors, (84), 51 states have call successors, (84) [2021-11-20 06:54:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 405 transitions. [2021-11-20 06:54:05,596 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 405 transitions. Word has length 214 [2021-11-20 06:54:05,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:05,597 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 405 transitions. [2021-11-20 06:54:05,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 06:54:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 405 transitions. [2021-11-20 06:54:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-20 06:54:05,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:05,601 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:05,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-20 06:54:05,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:54:05,826 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:05,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1225968051, now seen corresponding path program 2 times [2021-11-20 06:54:05,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:05,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397857747] [2021-11-20 06:54:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:05,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:05,909 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:54:05,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179764506] [2021-11-20 06:54:05,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:54:05,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:54:05,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:54:05,911 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:54:05,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-20 06:54:06,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:54:06,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:54:06,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-20 06:54:06,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:54:06,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:54:07,245 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 06:54:07,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:54:07,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 06:54:07,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-20 06:54:13,978 INFO L354 Elim1Store]: treesize reduction 82, result has 18.8 percent of original size [2021-11-20 06:54:13,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 29 [2021-11-20 06:54:14,003 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 06:54:14,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-20 06:54:14,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:54:14,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:54:16,004 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:54:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 125 proven. 31 refuted. 3 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-20 06:54:41,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:54:44,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:44,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397857747] [2021-11-20 06:54:44,669 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:54:44,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179764506] [2021-11-20 06:54:44,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179764506] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:54:44,669 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:54:44,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2021-11-20 06:54:44,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726515644] [2021-11-20 06:54:44,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:54:44,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-20 06:54:44,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-20 06:54:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=810, Unknown=12, NotChecked=58, Total=992 [2021-11-20 06:54:44,671 INFO L87 Difference]: Start difference. First operand 324 states and 405 transitions. Second operand has 31 states, 28 states have (on average 4.428571428571429) internal successors, (124), 24 states have internal predecessors, (124), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 13 states have call predecessors, (28), 14 states have call successors, (28) [2021-11-20 06:55:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:55:18,803 INFO L93 Difference]: Finished difference Result 638 states and 810 transitions. [2021-11-20 06:55:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-20 06:55:18,804 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 4.428571428571429) internal successors, (124), 24 states have internal predecessors, (124), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 13 states have call predecessors, (28), 14 states have call successors, (28) Word has length 214 [2021-11-20 06:55:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:55:18,808 INFO L225 Difference]: With dead ends: 638 [2021-11-20 06:55:18,808 INFO L226 Difference]: Without dead ends: 378 [2021-11-20 06:55:18,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 266 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 63.8s TimeCoverageRelationStatistics Valid=169, Invalid=1366, Unknown=29, NotChecked=76, Total=1640 [2021-11-20 06:55:18,810 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 184 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 2889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1640 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:55:18,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1799 Invalid, 2889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1133 Invalid, 0 Unknown, 1640 Unchecked, 1.4s Time] [2021-11-20 06:55:18,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-20 06:55:18,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 327. [2021-11-20 06:55:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 235 states have (on average 1.1531914893617021) internal successors, (271), 242 states have internal predecessors, (271), 52 states have call successors, (52), 28 states have call predecessors, (52), 39 states have return successors, (87), 56 states have call predecessors, (87), 51 states have call successors, (87) [2021-11-20 06:55:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 410 transitions. [2021-11-20 06:55:18,838 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 410 transitions. Word has length 214 [2021-11-20 06:55:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:55:18,838 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 410 transitions. [2021-11-20 06:55:18,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 4.428571428571429) internal successors, (124), 24 states have internal predecessors, (124), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 13 states have call predecessors, (28), 14 states have call successors, (28) [2021-11-20 06:55:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 410 transitions. [2021-11-20 06:55:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-20 06:55:18,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:55:18,842 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:55:18,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:19,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:55:19,070 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:55:19,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:19,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1860347702, now seen corresponding path program 1 times [2021-11-20 06:55:19,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:19,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696764599] [2021-11-20 06:55:19,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:19,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:19,125 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:55:19,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824247812] [2021-11-20 06:55:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:19,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:55:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:19,126 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:55:19,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-20 06:55:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:55:19,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 85 conjunts are in the unsatisfiable core [2021-11-20 06:55:19,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:55:19,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:55:20,347 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 06:55:20,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:55:20,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 06:55:20,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-20 06:55:20,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-20 06:55:20,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 06:55:27,158 INFO L354 Elim1Store]: treesize reduction 82, result has 18.8 percent of original size [2021-11-20 06:55:27,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 29 [2021-11-20 06:55:27,182 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 06:55:27,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-20 06:55:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:55:27,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-20 06:55:29,637 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:55:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 125 proven. 34 refuted. 3 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-20 06:55:54,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:55:57,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:55:57,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696764599] [2021-11-20 06:55:57,892 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:55:57,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824247812] [2021-11-20 06:55:57,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824247812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:55:57,892 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:55:57,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2021-11-20 06:55:57,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023540086] [2021-11-20 06:55:57,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 06:55:57,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-20 06:55:57,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:55:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-20 06:55:57,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=698, Unknown=12, NotChecked=54, Total=870 [2021-11-20 06:55:57,895 INFO L87 Difference]: Start difference. First operand 327 states and 410 transitions. Second operand has 29 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 14 states have call successors, (31), 7 states have call predecessors, (31), 10 states have return successors, (29), 12 states have call predecessors, (29), 14 states have call successors, (29) [2021-11-20 06:56:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:56:27,098 INFO L93 Difference]: Finished difference Result 638 states and 813 transitions. [2021-11-20 06:56:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 06:56:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 14 states have call successors, (31), 7 states have call predecessors, (31), 10 states have return successors, (29), 12 states have call predecessors, (29), 14 states have call successors, (29) Word has length 219 [2021-11-20 06:56:27,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:56:27,101 INFO L225 Difference]: With dead ends: 638 [2021-11-20 06:56:27,101 INFO L226 Difference]: Without dead ends: 378 [2021-11-20 06:56:27,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 272 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 58.6s TimeCoverageRelationStatistics Valid=150, Invalid=1087, Unknown=27, NotChecked=68, Total=1332 [2021-11-20 06:56:27,103 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 186 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1684 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:56:27,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1617 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1062 Invalid, 0 Unknown, 1684 Unchecked, 1.5s Time] [2021-11-20 06:56:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-20 06:56:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 324. [2021-11-20 06:56:27,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 233 states have (on average 1.1545064377682404) internal successors, (269), 239 states have internal predecessors, (269), 52 states have call successors, (52), 28 states have call predecessors, (52), 38 states have return successors, (84), 56 states have call predecessors, (84), 51 states have call successors, (84) [2021-11-20 06:56:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 405 transitions. [2021-11-20 06:56:27,129 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 405 transitions. Word has length 219 [2021-11-20 06:56:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:56:27,130 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 405 transitions. [2021-11-20 06:56:27,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 14 states have call successors, (31), 7 states have call predecessors, (31), 10 states have return successors, (29), 12 states have call predecessors, (29), 14 states have call successors, (29) [2021-11-20 06:56:27,130 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 405 transitions. [2021-11-20 06:56:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-20 06:56:27,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:56:27,133 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:56:27,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-20 06:56:27,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-20 06:56:27,354 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:56:27,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:56:27,354 INFO L85 PathProgramCache]: Analyzing trace with hash 217794015, now seen corresponding path program 3 times [2021-11-20 06:56:27,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:56:27,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545351803] [2021-11-20 06:56:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:56:27,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:56:27,451 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:56:27,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190613240] [2021-11-20 06:56:27,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:56:27,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:56:27,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:56:27,458 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:56:27,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee80b7fc-661f-4542-a899-c05499cc406c/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-20 06:56:31,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-20 06:56:31,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:56:31,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 120 conjunts are in the unsatisfiable core [2021-11-20 06:56:31,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:56:33,986 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:56:35,999 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-20 06:56:36,073 INFO L354 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2021-11-20 06:56:36,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 35 [2021-11-20 06:56:45,742 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 06:56:45,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 06:56:51,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 06:57:14,426 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:57:14,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:14,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:15,086 INFO L354 Elim1Store]: treesize reduction 607, result has 31.3 percent of original size [2021-11-20 06:57:15,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 197 treesize of output 491 [2021-11-20 06:57:23,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,455 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 06:57:23,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 71 [2021-11-20 06:57:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,684 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 06:57:23,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 71 [2021-11-20 06:57:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,045 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:24,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:24,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:24,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:24,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,285 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:24,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,340 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:24,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:24,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:24,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:25,077 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 06:57:25,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 71 [2021-11-20 06:57:25,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:25,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:25,597 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:25,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:25,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:25,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 06:57:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:26,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,050 INFO L354 Elim1Store]: treesize reduction 76, result has 51.6 percent of original size [2021-11-20 06:57:27,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 77 treesize of output 118 [2021-11-20 06:57:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,607 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-11-20 06:57:27,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 77 treesize of output 98 [2021-11-20 06:57:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,726 INFO L354 Elim1Store]: treesize reduction 43, result has 31.7 percent of original size [2021-11-20 06:57:28,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 51 [2021-11-20 06:57:29,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,115 INFO L354 Elim1Store]: treesize reduction 22, result has 65.1 percent of original size [2021-11-20 06:57:29,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 71 [2021-11-20 06:57:29,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,544 INFO L354 Elim1Store]: treesize reduction 43, result has 31.7 percent of original size [2021-11-20 06:57:29,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 51 [2021-11-20 06:57:29,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,848 INFO L354 Elim1Store]: treesize reduction 22, result has 65.1 percent of original size [2021-11-20 06:57:29,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 71 [2021-11-20 06:57:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,211 INFO L354 Elim1Store]: treesize reduction 96, result has 38.9 percent of original size [2021-11-20 06:57:33,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 182 [2021-11-20 06:57:33,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,837 INFO L354 Elim1Store]: treesize reduction 76, result has 51.6 percent of original size [2021-11-20 06:57:33,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 376 treesize of output 393 [2021-11-20 06:57:34,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:34,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 53 [2021-11-20 06:57:34,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,686 INFO L354 Elim1Store]: treesize reduction 46, result has 30.3 percent of original size [2021-11-20 06:57:34,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 73 [2021-11-20 06:57:35,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,083 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,093 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:35,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 53 [2021-11-20 06:57:35,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,266 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 06:57:35,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 93 [2021-11-20 06:57:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,920 INFO L354 Elim1Store]: treesize reduction 73, result has 1.4 percent of original size [2021-11-20 06:57:35,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 117 treesize of output 60 [2021-11-20 06:57:36,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,423 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:36,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 60 [2021-11-20 06:57:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,691 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:36,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 60 [2021-11-20 06:57:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,853 INFO L354 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2021-11-20 06:57:36,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 117 treesize of output 80 [2021-11-20 06:57:38,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,877 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:38,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 53 [2021-11-20 06:57:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,994 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:38,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 53 [2021-11-20 06:57:39,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:39,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:39,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 53 [2021-11-20 06:57:39,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,496 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:39,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 46 [2021-11-20 06:57:39,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,585 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:39,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 46 [2021-11-20 06:57:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,658 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:39,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 46 [2021-11-20 06:57:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:40,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,650 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:40,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 53 [2021-11-20 06:57:40,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:40,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:40,822 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:40,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 53 [2021-11-20 06:57:40,913 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 06:57:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:41,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:41,401 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:41,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 46 [2021-11-20 06:57:41,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:41,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:41,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:41,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 46 [2021-11-20 06:57:41,692 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 06:57:45,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:45,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,058 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:45,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 93 [2021-11-20 06:57:45,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:45,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,254 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:45,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 84 [2021-11-20 06:57:45,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:45,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,403 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:45,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 163 [2021-11-20 06:57:45,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:45,837 INFO L354 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2021-11-20 06:57:45,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 148 treesize of output 111 [2021-11-20 06:57:46,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:46,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:46,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,355 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:46,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 233 treesize of output 170 [2021-11-20 06:57:46,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,609 INFO L354 Elim1Store]: treesize reduction 24, result has 67.6 percent of original size [2021-11-20 06:57:46,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 163 treesize of output 149 [2021-11-20 06:57:46,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:46,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:46,811 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:46,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 69 [2021-11-20 06:57:47,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:47,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:47,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:47,227 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:47,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-20 06:57:48,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:48,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:48,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:48,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:48,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 93 [2021-11-20 06:57:48,606 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 06:57:48,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:48,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:48,751 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:48,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 62 [2021-11-20 06:57:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:49,169 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:49,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 55 [2021-11-20 06:57:51,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:51,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:51,728 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:51,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 168 [2021-11-20 06:57:52,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:52,168 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:52,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 168 [2021-11-20 06:57:52,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:52,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:52,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:52,738 INFO L354 Elim1Store]: treesize reduction 52, result has 27.8 percent of original size [2021-11-20 06:57:52,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 238 treesize of output 195 [2021-11-20 06:57:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:54,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:54,223 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:54,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 161 [2021-11-20 06:57:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:54,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:54,569 INFO L354 Elim1Store]: treesize reduction 22, result has 65.1 percent of original size [2021-11-20 06:57:54,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 218 treesize of output 208 [2021-11-20 06:57:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:55,469 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:55,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 161 [2021-11-20 06:57:57,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:57,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:57,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:57,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:57,824 INFO L354 Elim1Store]: treesize reduction 22, result has 69.4 percent of original size [2021-11-20 06:57:57,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 404 treesize of output 390 [2021-11-20 07:00:14,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:14,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,216 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:14,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 84 [2021-11-20 07:00:14,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:14,945 INFO L354 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2021-11-20 07:00:14,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 161 treesize of output 101 [2021-11-20 07:00:15,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:15,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:15,511 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 07:00:15,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1844 treesize of output 1493 [2021-11-20 07:00:19,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:19,781 INFO L354 Elim1Store]: treesize reduction 72, result has 42.4 percent of original size [2021-11-20 07:00:19,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 446 treesize of output 400 [2021-11-20 07:00:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:37,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 62 [2021-11-20 07:00:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,480 INFO L354 Elim1Store]: treesize reduction 63, result has 4.5 percent of original size [2021-11-20 07:00:37,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 321 treesize of output 287 [2021-11-20 07:00:37,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:37,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,850 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:37,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 82 [2021-11-20 07:00:37,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,937 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:37,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 75 [2021-11-20 07:00:37,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,994 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:37,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 62 [2021-11-20 07:00:38,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:38,269 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:38,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 68 [2021-11-20 07:00:39,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:39,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,434 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:39,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 62 [2021-11-20 07:00:39,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,594 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:39,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 69 [2021-11-20 07:00:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:39,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:39,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 55 [2021-11-20 07:00:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:40,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:40,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:40,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 62 [2021-11-20 07:00:40,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:40,778 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:40,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 62 [2021-11-20 07:00:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:41,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 55 [2021-11-20 07:00:41,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,746 INFO L354 Elim1Store]: treesize reduction 63, result has 4.5 percent of original size [2021-11-20 07:00:41,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 287 treesize of output 245 [2021-11-20 07:00:42,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:42,315 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:42,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 55 [2021-11-20 07:01:19,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:19,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:19,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:19,252 INFO L354 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2021-11-20 07:01:19,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 217 treesize of output 141 [2021-11-20 07:01:19,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:19,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:19,938 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:19,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 332 treesize of output 245 [2021-11-20 07:01:20,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:20,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:20,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:20,261 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:20,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 323 treesize of output 254 [2021-11-20 07:01:20,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:20,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:20,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:20,667 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:20,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 58 [2021-11-20 07:01:21,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:21,155 INFO L354 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2021-11-20 07:01:21,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 217 treesize of output 141 [2021-11-20 07:01:21,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:21,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:21,733 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:21,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 58 [2021-11-20 07:01:33,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:33,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:33,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:33,899 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:33,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 108 [2021-11-20 07:01:40,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:40,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:40,296 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:40,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 108 [2021-11-20 07:01:49,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:49,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:49,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:49,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:49,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 106 [2021-11-20 07:02:00,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:00,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:00,130 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 07:02:00,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 131 [2021-11-20 07:02:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:17,538 INFO L354 Elim1Store]: treesize reduction 25, result has 62.1 percent of original size [2021-11-20 07:02:17,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3342 treesize of output 2739 [2021-11-20 07:02:33,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:33,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:33,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 17 [2021-11-20 07:02:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:34,140 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:34,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 17 [2021-11-20 07:02:34,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2021-11-20 07:02:34,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:34,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:34,760 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:34,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 24 [2021-11-20 07:02:34,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2021-11-20 07:02:35,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:35,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:35,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 224 treesize of output 196 [2021-11-20 07:02:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:35,995 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:35,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 17 [2021-11-20 07:02:36,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:36,242 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:36,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 241 [2021-11-20 07:02:36,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:36,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:36,610 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:36,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20 [2021-11-20 07:02:36,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:02:36,875 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:02:36,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20