./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8 --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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:12:50,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:12:50,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:12:50,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:12:50,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:12:50,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:12:50,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:12:50,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:12:50,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:12:50,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:12:50,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:12:50,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:12:50,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:12:50,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:12:50,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:12:50,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:12:50,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:12:50,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:12:50,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:12:50,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:12:50,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:12:50,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:12:50,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:12:50,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:12:50,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:12:50,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:12:50,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:12:50,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:12:50,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:12:50,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:12:50,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:12:50,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:12:50,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:12:50,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:12:50,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:12:50,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:12:50,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:12:50,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:12:50,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:12:50,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:12:50,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:12:50,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:12:50,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:12:50,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:12:50,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:12:50,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:12:50,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:12:50,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:12:50,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:12:50,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:12:50,431 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:12:50,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:12:50,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:12:50,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:12:50,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:12:50,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:12:50,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:12:50,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:12:50,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:12:50,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:12:50,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:12:50,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:12:50,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:12:50,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:50,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:12:50,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:12:50,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:12:50,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:12:50,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:12:50,439 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:12:50,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:12:50,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:12:50,441 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_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2022-11-16 12:12:50,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:12:50,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:12:50,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:12:50,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:12:50,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:12:50,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-16 12:12:50,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/data/cf656220c/d45f73c60db34ce7b38e963c006ae6e9/FLAG2ca6ce62b [2022-11-16 12:12:51,993 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:12:51,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-16 12:12:52,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/data/cf656220c/d45f73c60db34ce7b38e963c006ae6e9/FLAG2ca6ce62b [2022-11-16 12:12:52,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/data/cf656220c/d45f73c60db34ce7b38e963c006ae6e9 [2022-11-16 12:12:52,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:12:52,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:12:52,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:52,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:12:52,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:12:52,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:52" (1/1) ... [2022-11-16 12:12:52,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe39bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:52, skipping insertion in model container [2022-11-16 12:12:52,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:52" (1/1) ... [2022-11-16 12:12:52,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:12:52,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:12:53,031 WARN L229 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_cabf2019-ba8f-4913-9451-a690b4c5494e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-16 12:12:53,040 WARN L229 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_cabf2019-ba8f-4913-9451-a690b4c5494e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-16 12:12:54,384 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:12:54,507 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,508 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,509 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,510 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,511 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,530 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,530 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,533 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,534 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,536 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,537 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,538 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:54,539 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,067 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:12:55,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:12:55,073 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:12:55,077 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:12:55,083 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:12:55,085 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:12:55,086 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:12:55,089 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:12:55,092 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:12:55,093 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:12:55,328 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,333 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,339 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,346 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,406 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:55,441 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:12:55,458 WARN L229 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_cabf2019-ba8f-4913-9451-a690b4c5494e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-16 12:12:55,459 WARN L229 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_cabf2019-ba8f-4913-9451-a690b4c5494e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-16 12:12:55,496 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:12:55,516 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,516 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,517 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,518 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,519 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,528 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,529 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,530 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,531 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,533 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,534 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,534 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,535 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,600 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:12:55,601 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:12:55,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:12:55,604 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:12:55,607 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:12:55,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:12:55,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:12:55,612 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:12:55,613 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:12:55,614 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:12:55,692 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,699 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,700 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,706 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,789 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:55,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:55,996 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:12:55,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55 WrapperNode [2022-11-16 12:12:55,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:55,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:55,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:12:55,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:12:56,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,205 INFO L138 Inliner]: procedures = 691, calls = 1684, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 804 [2022-11-16 12:12:56,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:56,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:12:56,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:12:56,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:12:56,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,357 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:12:56,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:12:56,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:12:56,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:12:56,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (1/1) ... [2022-11-16 12:12:56,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:56,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:56,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:12:56,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:12:56,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:12:56,504 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-16 12:12:56,504 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-16 12:12:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-16 12:12:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-16 12:12:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:12:56,506 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:12:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-16 12:12:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-16 12:12:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:12:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 12:12:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 12:12:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:12:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:12:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:12:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:12:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:12:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-16 12:12:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-16 12:12:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:12:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:12:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:12:56,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:12:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 12:12:56,512 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 12:12:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 12:12:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 12:12:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-16 12:12:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-16 12:12:56,514 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-16 12:12:56,514 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-16 12:12:56,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:12:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:12:56,515 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-16 12:12:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-16 12:12:56,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-16 12:12:56,515 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-16 12:12:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:12:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-16 12:12:56,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-16 12:12:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:12:56,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:12:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 12:12:56,517 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 12:12:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 12:12:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 12:12:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-16 12:12:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-16 12:12:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2022-11-16 12:12:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2022-11-16 12:12:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:12:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-16 12:12:56,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-16 12:12:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:12:57,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:12:57,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:12:58,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:12:58,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:12:58,691 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:12:58,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:58 BoogieIcfgContainer [2022-11-16 12:12:58,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:12:58,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:12:58,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:12:58,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:12:58,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:12:52" (1/3) ... [2022-11-16 12:12:58,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e858bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:58, skipping insertion in model container [2022-11-16 12:12:58,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:55" (2/3) ... [2022-11-16 12:12:58,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e858bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:58, skipping insertion in model container [2022-11-16 12:12:58,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:58" (3/3) ... [2022-11-16 12:12:58,721 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2022-11-16 12:12:58,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:12:58,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:12:58,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:12:58,863 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9c60e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:12:58,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:12:58,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-16 12:12:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 12:12:58,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:58,893 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:58,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:58,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:58,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1087274047, now seen corresponding path program 1 times [2022-11-16 12:12:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:58,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174614973] [2022-11-16 12:12:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:58,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:12:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:12:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:12:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:12:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:12:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 12:12:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:12:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:12:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:12:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:00,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:13:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-16 12:13:00,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:00,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174614973] [2022-11-16 12:13:00,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174614973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:00,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:00,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:13:00,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232829226] [2022-11-16 12:13:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:00,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:13:00,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:13:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:13:00,119 INFO L87 Difference]: Start difference. First operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 12:13:01,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:01,350 INFO L93 Difference]: Finished difference Result 502 states and 720 transitions. [2022-11-16 12:13:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:13:01,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2022-11-16 12:13:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:01,384 INFO L225 Difference]: With dead ends: 502 [2022-11-16 12:13:01,384 INFO L226 Difference]: Without dead ends: 257 [2022-11-16 12:13:01,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:13:01,400 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 82 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:01,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 370 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:13:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-16 12:13:01,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 230. [2022-11-16 12:13:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-16 12:13:01,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 304 transitions. [2022-11-16 12:13:01,521 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 304 transitions. Word has length 87 [2022-11-16 12:13:01,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 304 transitions. [2022-11-16 12:13:01,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 12:13:01,522 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 304 transitions. [2022-11-16 12:13:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 12:13:01,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:01,535 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:01,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:13:01,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash 672902535, now seen corresponding path program 1 times [2022-11-16 12:13:01,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:01,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588938576] [2022-11-16 12:13:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:01,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:13:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:13:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:13:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:13:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:13:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:13:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:13:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 12:13:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:13:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:13:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:13:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:13:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-16 12:13:02,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:02,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588938576] [2022-11-16 12:13:02,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588938576] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:13:02,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719873603] [2022-11-16 12:13:02,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:02,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:02,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:02,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:02,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:13:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:03,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:13:03,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 12:13:03,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:13:03,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719873603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:03,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:13:03,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-16 12:13:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358539871] [2022-11-16 12:13:03,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:03,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:13:03,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:03,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:13:03,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:13:03,247 INFO L87 Difference]: Start difference. First operand 230 states and 304 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-16 12:13:03,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:03,632 INFO L93 Difference]: Finished difference Result 436 states and 585 transitions. [2022-11-16 12:13:03,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:13:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 87 [2022-11-16 12:13:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:03,636 INFO L225 Difference]: With dead ends: 436 [2022-11-16 12:13:03,637 INFO L226 Difference]: Without dead ends: 232 [2022-11-16 12:13:03,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:13:03,639 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 306 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:03,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 970 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:13:03,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-16 12:13:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-11-16 12:13:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-16 12:13:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2022-11-16 12:13:03,669 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 87 [2022-11-16 12:13:03,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:03,670 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2022-11-16 12:13:03,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-16 12:13:03,670 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2022-11-16 12:13:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 12:13:03,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:03,673 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:03,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:03,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:03,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash -149436210, now seen corresponding path program 1 times [2022-11-16 12:13:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720342286] [2022-11-16 12:13:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:03,996 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:13:03,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523764119] [2022-11-16 12:13:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:03,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:03,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:03,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:04,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:13:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:04,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:13:04,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:04,716 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-16 12:13:04,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:13:04,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:04,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720342286] [2022-11-16 12:13:04,731 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:13:04,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523764119] [2022-11-16 12:13:04,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523764119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:04,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:04,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:13:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209448406] [2022-11-16 12:13:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:04,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:13:04,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:04,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:13:04,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:13:04,735 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 12:13:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:04,800 INFO L93 Difference]: Finished difference Result 443 states and 614 transitions. [2022-11-16 12:13:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:13:04,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2022-11-16 12:13:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:04,809 INFO L225 Difference]: With dead ends: 443 [2022-11-16 12:13:04,810 INFO L226 Difference]: Without dead ends: 237 [2022-11-16 12:13:04,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:13:04,815 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 10 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 899 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 [2022-11-16 12:13:04,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 899 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:13:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-16 12:13:04,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2022-11-16 12:13:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-16 12:13:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 317 transitions. [2022-11-16 12:13:04,870 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 317 transitions. Word has length 102 [2022-11-16 12:13:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:04,870 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 317 transitions. [2022-11-16 12:13:04,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 12:13:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 317 transitions. [2022-11-16 12:13:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 12:13:04,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:04,880 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:04,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:05,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:05,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:05,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash -710135988, now seen corresponding path program 1 times [2022-11-16 12:13:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:05,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611764476] [2022-11-16 12:13:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:05,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:13:05,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230611783] [2022-11-16 12:13:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:05,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:05,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:05,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:05,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:13:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:05,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2384 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:13:05,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 12:13:05,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:13:05,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:05,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611764476] [2022-11-16 12:13:05,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:13:05,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230611783] [2022-11-16 12:13:05,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230611783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:05,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:05,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:13:05,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969795374] [2022-11-16 12:13:05,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:05,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:13:05,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:05,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:13:05,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:13:05,899 INFO L87 Difference]: Start difference. First operand 234 states and 317 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-16 12:13:06,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:06,629 INFO L93 Difference]: Finished difference Result 432 states and 583 transitions. [2022-11-16 12:13:06,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:13:06,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 102 [2022-11-16 12:13:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:06,633 INFO L225 Difference]: With dead ends: 432 [2022-11-16 12:13:06,633 INFO L226 Difference]: Without dead ends: 234 [2022-11-16 12:13:06,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:13:06,636 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 354 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:06,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1238 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:13:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-16 12:13:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-16 12:13:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2022-11-16 12:13:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2022-11-16 12:13:06,661 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 102 [2022-11-16 12:13:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:06,662 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2022-11-16 12:13:06,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-16 12:13:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2022-11-16 12:13:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 12:13:06,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:06,665 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-16 12:13:06,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:06,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:06,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 191134547, now seen corresponding path program 2 times [2022-11-16 12:13:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:06,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55375274] [2022-11-16 12:13:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:06,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:06,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:13:06,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735303136] [2022-11-16 12:13:06,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:13:06,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:06,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:06,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:13:07,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:13:07,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:13:07,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:13:07,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-16 12:13:07,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:13:07,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55375274] [2022-11-16 12:13:07,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:13:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735303136] [2022-11-16 12:13:07,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735303136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:07,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:07,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:13:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288387847] [2022-11-16 12:13:07,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:07,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:13:07,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:07,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:13:07,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:13:07,659 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 12:13:07,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:07,725 INFO L93 Difference]: Finished difference Result 409 states and 535 transitions. [2022-11-16 12:13:07,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:13:07,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-11-16 12:13:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:07,733 INFO L225 Difference]: With dead ends: 409 [2022-11-16 12:13:07,733 INFO L226 Difference]: Without dead ends: 239 [2022-11-16 12:13:07,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:13:07,735 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 2 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:07,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:13:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-16 12:13:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-16 12:13:07,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-16 12:13:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 316 transitions. [2022-11-16 12:13:07,773 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 316 transitions. Word has length 117 [2022-11-16 12:13:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:07,775 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 316 transitions. [2022-11-16 12:13:07,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 12:13:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 316 transitions. [2022-11-16 12:13:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-16 12:13:07,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:07,779 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-16 12:13:07,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:07,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:07,990 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:07,991 INFO L85 PathProgramCache]: Analyzing trace with hash 389087133, now seen corresponding path program 1 times [2022-11-16 12:13:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:07,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719184511] [2022-11-16 12:13:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:07,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:08,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:13:08,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700043426] [2022-11-16 12:13:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:08,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:08,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:08,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:13:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:08,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2529 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:13:08,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 12:13:08,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:13:08,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719184511] [2022-11-16 12:13:08,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:13:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700043426] [2022-11-16 12:13:08,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700043426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:08,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:08,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:13:08,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266986902] [2022-11-16 12:13:08,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:08,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:13:08,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:08,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:13:08,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:13:08,910 INFO L87 Difference]: Start difference. First operand 239 states and 316 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-16 12:13:09,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:09,659 INFO L93 Difference]: Finished difference Result 439 states and 576 transitions. [2022-11-16 12:13:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:13:09,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 123 [2022-11-16 12:13:09,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:09,662 INFO L225 Difference]: With dead ends: 439 [2022-11-16 12:13:09,663 INFO L226 Difference]: Without dead ends: 237 [2022-11-16 12:13:09,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:13:09,665 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 392 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:09,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1409 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:13:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-16 12:13:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-16 12:13:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-16 12:13:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 310 transitions. [2022-11-16 12:13:09,688 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 310 transitions. Word has length 123 [2022-11-16 12:13:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:09,689 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 310 transitions. [2022-11-16 12:13:09,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-16 12:13:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2022-11-16 12:13:09,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:13:09,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:09,692 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:09,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:09,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:09,903 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1195830657, now seen corresponding path program 1 times [2022-11-16 12:13:09,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:09,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000969688] [2022-11-16 12:13:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:10,040 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:13:10,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252745112] [2022-11-16 12:13:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:10,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:10,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cabf2019-ba8f-4913-9451-a690b4c5494e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:13:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:11,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2811 conjuncts, 319 conjunts are in the unsatisfiable core [2022-11-16 12:13:11,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:11,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 12:13:12,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-16 12:13:12,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-16 12:13:13,010 INFO L321 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2022-11-16 12:13:13,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2022-11-16 12:13:30,576 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 98 DAG size of output: 96 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:13:39,981 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 228 DAG size of output: 102 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 12:13:39,982 INFO L321 Elim1Store]: treesize reduction 535, result has 28.8 percent of original size [2022-11-16 12:13:39,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 275 treesize of output 563