./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro --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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:38:34,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:38:34,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:38:34,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:38:34,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:38:34,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:38:34,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:38:34,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:38:34,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:38:34,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:38:34,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:38:34,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:38:34,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:38:34,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:38:34,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:38:34,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:38:34,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:38:34,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:38:34,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:38:34,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:38:34,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:38:34,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:38:34,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:38:34,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:38:34,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:38:34,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:38:34,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:38:34,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:38:34,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:38:34,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:38:34,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:38:34,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:38:34,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:38:34,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:38:34,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:38:34,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:38:34,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:38:34,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:38:34,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:38:34,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:38:34,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:38:34,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:38:34,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:38:34,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:38:34,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:38:34,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:38:34,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:38:34,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:38:34,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:38:34,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:38:34,534 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:38:34,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:38:34,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:38:34,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:38:34,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:38:34,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:38:34,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:38:34,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:38:34,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:34,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:38:34,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:38:34,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:38:34,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:38:34,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:38:34,539 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:38:34,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:38:34,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:38:34,539 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_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-11-18 18:38:34,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:38:34,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:38:34,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:38:34,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:38:34,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:38:34,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-18 18:38:34,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/cda88cc46/454b583230954b10a755d2bdf7ac21c9/FLAGc6733910b [2022-11-18 18:38:35,778 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:38:35,779 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-18 18:38:35,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/cda88cc46/454b583230954b10a755d2bdf7ac21c9/FLAGc6733910b [2022-11-18 18:38:36,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/cda88cc46/454b583230954b10a755d2bdf7ac21c9 [2022-11-18 18:38:36,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:38:36,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:38:36,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:36,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:38:36,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:38:36,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:36" (1/1) ... [2022-11-18 18:38:36,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c13a378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:36, skipping insertion in model container [2022-11-18 18:38:36,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:36" (1/1) ... [2022-11-18 18:38:36,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:38:36,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:38:36,707 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-18 18:38:36,714 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-18 18:38:37,675 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,681 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,683 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,685 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,686 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,697 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,701 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,704 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,706 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,709 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,712 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,712 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:37,713 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 18:38:38,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 18:38:38,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 18:38:38,119 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 18:38:38,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 18:38:38,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 18:38:38,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 18:38:38,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 18:38:38,123 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 18:38:38,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 18:38:38,253 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 18:38:38,278 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,284 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,350 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,355 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,356 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,357 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,357 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,358 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,359 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,362 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,362 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,362 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,363 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,363 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,364 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,368 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,369 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,369 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,369 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,381 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,382 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,398 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,400 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,400 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:38,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:38:38,491 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-18 18:38:38,492 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-18 18:38:38,550 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,551 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,551 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,551 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,552 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,557 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,557 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,558 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,559 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,560 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,560 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,561 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,561 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,684 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 18:38:38,685 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 18:38:38,686 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 18:38:38,687 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 18:38:38,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 18:38:38,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 18:38:38,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 18:38:38,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 18:38:38,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 18:38:38,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 18:38:38,760 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 18:38:38,794 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,799 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,827 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,828 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,828 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,828 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,829 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,829 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,830 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,830 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,830 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,833 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,833 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,833 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,834 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,836 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,837 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,842 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,843 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,844 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:38:38,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:39,031 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:38:39,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39 WrapperNode [2022-11-18 18:38:39,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:39,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:39,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:38:39,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:38:39,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,221 INFO L138 Inliner]: procedures = 697, calls = 1917, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1032 [2022-11-18 18:38:39,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:39,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:38:39,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:38:39,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:38:39,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:38:39,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:38:39,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:38:39,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:38:39,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (1/1) ... [2022-11-18 18:38:39,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:39,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:39,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:38:39,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:38:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-18 18:38:39,472 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-18 18:38:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-18 18:38:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-18 18:38:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:38:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 18:38:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 18:38:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 18:38:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 18:38:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 18:38:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 18:38:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-18 18:38:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-18 18:38:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:38:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:38:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 18:38:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 18:38:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 18:38:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 18:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-18 18:38:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-18 18:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-18 18:38:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-18 18:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-18 18:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-18 18:38:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:38:39,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:38:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 18:38:39,487 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 18:38:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 18:38:39,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 18:38:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:38:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-18 18:38:39,488 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-18 18:38:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-18 18:38:39,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-18 18:38:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 18:38:39,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 18:38:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:38:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:38:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:38:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:38:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-18 18:38:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-18 18:38:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-18 18:38:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-18 18:38:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-18 18:38:39,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 18:38:39,490 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 18:38:39,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 18:38:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:38:39,491 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 18:38:39,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 18:38:39,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 18:38:39,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 18:38:39,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 18:38:39,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 18:38:39,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:38:39,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-18 18:38:39,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-18 18:38:40,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:38:40,023 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:38:43,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:38:43,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:38:43,144 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 18:38:43,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:43 BoogieIcfgContainer [2022-11-18 18:38:43,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:38:43,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:38:43,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:38:43,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:38:43,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:38:36" (1/3) ... [2022-11-18 18:38:43,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cac8cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:43, skipping insertion in model container [2022-11-18 18:38:43,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:39" (2/3) ... [2022-11-18 18:38:43,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cac8cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:43, skipping insertion in model container [2022-11-18 18:38:43,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:43" (3/3) ... [2022-11-18 18:38:43,166 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-11-18 18:38:43,186 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:38:43,186 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:38:43,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:38:43,288 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;@19379a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:38:43,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 18:38:43,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 440 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 258 states have internal predecessors, (320), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-11-18 18:38:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:38:43,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:43,328 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:43,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:43,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1618864345, now seen corresponding path program 1 times [2022-11-18 18:38:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:43,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766567243] [2022-11-18 18:38:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:43,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:38:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:38:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:38:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:38:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:38:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 18:38:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:38:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:38:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:38:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 18:38:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:38:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:38:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:38:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 18:38:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 18:38:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:44,447 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-18 18:38:44,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:44,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766567243] [2022-11-18 18:38:44,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766567243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:44,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:44,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:38:44,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328834301] [2022-11-18 18:38:44,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:44,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:38:44,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:44,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:38:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:38:44,514 INFO L87 Difference]: Start difference. First operand has 440 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 258 states have internal predecessors, (320), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:38:46,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:38:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:38:48,658 INFO L93 Difference]: Finished difference Result 1047 states and 1782 transitions. [2022-11-18 18:38:48,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:38:48,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-11-18 18:38:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:38:48,698 INFO L225 Difference]: With dead ends: 1047 [2022-11-18 18:38:48,698 INFO L226 Difference]: Without dead ends: 613 [2022-11-18 18:38:48,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:38:48,715 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 326 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:38:48,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1021 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-18 18:38:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-11-18 18:38:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 433. [2022-11-18 18:38:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 249 states have (on average 1.2289156626506024) internal successors, (306), 252 states have internal predecessors, (306), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-11-18 18:38:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 616 transitions. [2022-11-18 18:38:48,825 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 616 transitions. Word has length 133 [2022-11-18 18:38:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:38:48,826 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 616 transitions. [2022-11-18 18:38:48,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:38:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 616 transitions. [2022-11-18 18:38:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:38:48,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:48,830 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:48,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:38:48,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 348864297, now seen corresponding path program 1 times [2022-11-18 18:38:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:48,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602182448] [2022-11-18 18:38:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:38:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:38:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:38:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:38:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:38:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 18:38:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:38:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:38:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:38:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 18:38:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:38:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:38:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:38:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 18:38:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 18:38:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-11-18 18:38:49,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:49,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602182448] [2022-11-18 18:38:49,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602182448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:38:49,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121385732] [2022-11-18 18:38:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:49,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:49,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:49,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:38:49,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:38:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:50,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:38:50,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:38:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:38:50,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:38:50,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121385732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:50,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:38:50,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-18 18:38:50,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545201817] [2022-11-18 18:38:50,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:50,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:38:50,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:38:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:38:50,564 INFO L87 Difference]: Start difference. First operand 433 states and 616 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:38:52,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:38:53,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:38:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:38:54,383 INFO L93 Difference]: Finished difference Result 832 states and 1201 transitions. [2022-11-18 18:38:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:38:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 133 [2022-11-18 18:38:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:38:54,392 INFO L225 Difference]: With dead ends: 832 [2022-11-18 18:38:54,392 INFO L226 Difference]: Without dead ends: 435 [2022-11-18 18:38:54,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:38:54,396 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 631 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:38:54,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 2141 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-18 18:38:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-18 18:38:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-11-18 18:38:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 250 states have (on average 1.228) internal successors, (307), 254 states have internal predecessors, (307), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2022-11-18 18:38:54,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 630 transitions. [2022-11-18 18:38:54,468 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 630 transitions. Word has length 133 [2022-11-18 18:38:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:38:54,470 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 630 transitions. [2022-11-18 18:38:54,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:38:54,471 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 630 transitions. [2022-11-18 18:38:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-18 18:38:54,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:54,475 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:54,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:38:54,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:54,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:54,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1757484055, now seen corresponding path program 1 times [2022-11-18 18:38:54,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:54,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037082945] [2022-11-18 18:38:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:54,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:38:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:38:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:38:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:38:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:38:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 18:38:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:38:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:38:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:38:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:38:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:38:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:38:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:38:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:38:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 18:38:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 18:38:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-18 18:38:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-18 18:38:55,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:55,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037082945] [2022-11-18 18:38:55,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037082945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:38:55,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504605889] [2022-11-18 18:38:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:55,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:55,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:55,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:38:55,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:38:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:56,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:38:56,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:38:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:38:56,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:38:56,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504605889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:56,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:38:56,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-11-18 18:38:56,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888423476] [2022-11-18 18:38:56,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:56,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:38:56,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:56,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:38:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:38:56,451 INFO L87 Difference]: Start difference. First operand 435 states and 630 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:38:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:38:59,336 INFO L93 Difference]: Finished difference Result 855 states and 1272 transitions. [2022-11-18 18:38:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:38:59,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 141 [2022-11-18 18:38:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:38:59,341 INFO L225 Difference]: With dead ends: 855 [2022-11-18 18:38:59,341 INFO L226 Difference]: Without dead ends: 456 [2022-11-18 18:38:59,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:38:59,344 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 689 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:38:59,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 3083 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 18:38:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-18 18:38:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 454. [2022-11-18 18:38:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-11-18 18:38:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-11-18 18:38:59,425 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 141 [2022-11-18 18:38:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:38:59,427 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-11-18 18:38:59,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:38:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-11-18 18:38:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 18:38:59,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:59,434 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:59,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:38:59,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:59,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:59,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1778270991, now seen corresponding path program 1 times [2022-11-18 18:38:59,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:59,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375906497] [2022-11-18 18:38:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:59,764 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 18:38:59,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62428095] [2022-11-18 18:38:59,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:59,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:59,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:59,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:38:59,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:39:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:00,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:39:00,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:39:00,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:00,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:00,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375906497] [2022-11-18 18:39:00,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 18:39:00,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62428095] [2022-11-18 18:39:00,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62428095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:00,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:00,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:39:00,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614538485] [2022-11-18 18:39:00,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:00,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:39:00,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:00,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:39:00,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:39:00,645 INFO L87 Difference]: Start difference. First operand 454 states and 673 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:39:03,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:03,424 INFO L93 Difference]: Finished difference Result 880 states and 1345 transitions. [2022-11-18 18:39:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:39:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 156 [2022-11-18 18:39:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:03,431 INFO L225 Difference]: With dead ends: 880 [2022-11-18 18:39:03,432 INFO L226 Difference]: Without dead ends: 462 [2022-11-18 18:39:03,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:39:03,441 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 655 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:03,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2633 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 18:39:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-18 18:39:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 454. [2022-11-18 18:39:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-11-18 18:39:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-11-18 18:39:03,494 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 156 [2022-11-18 18:39:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:03,532 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-11-18 18:39:03,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:39:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-11-18 18:39:03,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-18 18:39:03,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:03,534 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:03,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:03,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:03,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash 723207826, now seen corresponding path program 1 times [2022-11-18 18:39:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:03,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576465626] [2022-11-18 18:39:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:03,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:03,869 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 18:39:03,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343387078] [2022-11-18 18:39:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:03,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:03,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:03,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:03,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:39:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:04,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:39:04,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-18 18:39:04,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:04,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576465626] [2022-11-18 18:39:04,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 18:39:04,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343387078] [2022-11-18 18:39:04,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343387078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:04,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:04,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:39:04,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563866838] [2022-11-18 18:39:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:04,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:39:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:39:04,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:39:04,727 INFO L87 Difference]: Start difference. First operand 454 states and 673 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-18 18:39:08,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:08,062 INFO L93 Difference]: Finished difference Result 890 states and 1349 transitions. [2022-11-18 18:39:08,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:39:08,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 172 [2022-11-18 18:39:08,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:08,067 INFO L225 Difference]: With dead ends: 890 [2022-11-18 18:39:08,067 INFO L226 Difference]: Without dead ends: 472 [2022-11-18 18:39:08,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:39:08,071 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 720 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:08,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 3540 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 18:39:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-11-18 18:39:08,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 454. [2022-11-18 18:39:08,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-11-18 18:39:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-11-18 18:39:08,135 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 172 [2022-11-18 18:39:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:08,135 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-11-18 18:39:08,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-18 18:39:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-11-18 18:39:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:39:08,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:08,141 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:08,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:08,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:08,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:08,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:08,352 INFO L85 PathProgramCache]: Analyzing trace with hash -662536810, now seen corresponding path program 2 times [2022-11-18 18:39:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:08,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328349823] [2022-11-18 18:39:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:08,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:08,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 18:39:08,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432604749] [2022-11-18 18:39:08,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:39:08,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:08,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:08,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:08,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:39:09,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:39:09,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:39:09,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2841 conjuncts, 217 conjunts are in the unsatisfiable core [2022-11-18 18:39:09,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:10,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-18 18:39:11,033 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-18 18:39:12,161 INFO L321 Elim1Store]: treesize reduction 316, result has 50.1 percent of original size [2022-11-18 18:39:12,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 80 select indices, 80 select index equivalence classes, 3081 disjoint index pairs (out of 3160 index pairs), introduced 80 new quantified variables, introduced 79 case distinctions, treesize of input 401 treesize of output 557 [2022-11-18 18:39:25,633 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 79 dual juncts. [2022-11-18 18:39:25,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:25,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328349823] [2022-11-18 18:39:25,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 18:39:25,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432604749] [2022-11-18 18:39:25,633 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 18:39:25,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:25,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 18:39:25,835 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-18 18:39:25,838 INFO L158 Benchmark]: Toolchain (without parser) took 49545.90ms. Allocated memory was 125.8MB in the beginning and 578.8MB in the end (delta: 453.0MB). Free memory was 82.5MB in the beginning and 491.1MB in the end (delta: -408.5MB). Peak memory consumption was 305.2MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,838 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:25,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2736.03ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 82.5MB in the beginning and 89.7MB in the end (delta: -7.1MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.29ms. Allocated memory is still 155.2MB. Free memory was 89.7MB in the beginning and 78.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,839 INFO L158 Benchmark]: Boogie Preprocessor took 158.81ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 68.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,839 INFO L158 Benchmark]: RCFGBuilder took 3751.33ms. Allocated memory was 155.2MB in the beginning and 230.7MB in the end (delta: 75.5MB). Free memory was 68.7MB in the beginning and 113.9MB in the end (delta: -45.2MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,840 INFO L158 Benchmark]: TraceAbstraction took 42688.16ms. Allocated memory was 230.7MB in the beginning and 578.8MB in the end (delta: 348.1MB). Free memory was 113.9MB in the beginning and 491.1MB in the end (delta: -377.2MB). Peak memory consumption was 232.0MB. Max. memory is 16.1GB. [2022-11-18 18:39:25,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2736.03ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 82.5MB in the beginning and 89.7MB in the end (delta: -7.1MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 203.29ms. Allocated memory is still 155.2MB. Free memory was 89.7MB in the beginning and 78.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.81ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 68.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3751.33ms. Allocated memory was 155.2MB in the beginning and 230.7MB in the end (delta: 75.5MB). Free memory was 68.7MB in the beginning and 113.9MB in the end (delta: -45.2MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * TraceAbstraction took 42688.16ms. Allocated memory was 230.7MB in the beginning and 578.8MB in the end (delta: 348.1MB). Free memory was 113.9MB in the beginning and 491.1MB in the end (delta: -377.2MB). Peak memory consumption was 232.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 18:39:25,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro --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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:39:28,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:39:28,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:39:28,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:39:28,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:39:28,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:39:28,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:39:28,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:39:28,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:39:28,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:39:28,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:39:28,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:39:28,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:39:28,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:39:28,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:39:28,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:39:28,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:39:28,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:39:28,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:39:28,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:39:28,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:39:28,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:39:28,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:39:28,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:39:28,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:39:28,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:39:28,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:39:28,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:39:28,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:39:28,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:39:28,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:39:28,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:39:28,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:39:28,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:39:28,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:39:28,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:39:28,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:39:28,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:39:28,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:39:28,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:39:28,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:39:28,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:39:28,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:39:28,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:39:28,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:39:28,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:39:28,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:39:28,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:39:28,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:39:28,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:39:28,301 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:39:28,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:39:28,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:39:28,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:39:28,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:39:28,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:39:28,303 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:39:28,304 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:39:28,304 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:39:28,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:39:28,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:39:28,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:39:28,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:39:28,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:39:28,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:39:28,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:28,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:39:28,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:39:28,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:39:28,306 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:39:28,307 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:39:28,307 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:39:28,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:39:28,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:39:28,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:39:28,308 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-11-18 18:39:28,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:39:28,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:39:28,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:39:28,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:39:28,777 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:39:28,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-18 18:39:28,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/eff88e7c1/88117af5ef4044169b0491d850c15f18/FLAG0e2e068cf [2022-11-18 18:39:29,817 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:39:29,818 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-18 18:39:29,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/eff88e7c1/88117af5ef4044169b0491d850c15f18/FLAG0e2e068cf [2022-11-18 18:39:30,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/data/eff88e7c1/88117af5ef4044169b0491d850c15f18 [2022-11-18 18:39:30,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:39:30,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:39:30,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:30,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:39:30,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:39:30,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:30" (1/1) ... [2022-11-18 18:39:30,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1864fd06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:30, skipping insertion in model container [2022-11-18 18:39:30,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:30" (1/1) ... [2022-11-18 18:39:30,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:39:30,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:30,761 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-18 18:39:30,769 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-18 18:39:31,771 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,772 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,773 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,774 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,775 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,793 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,794 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,796 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,797 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,798 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,800 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,800 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:31,801 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,175 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 18:39:32,176 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 18:39:32,177 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 18:39:32,179 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 18:39:32,180 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 18:39:32,181 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 18:39:32,182 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 18:39:32,183 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 18:39:32,183 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 18:39:32,184 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 18:39:32,342 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 18:39:32,381 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,389 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,478 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,478 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,479 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,479 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,480 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,480 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,481 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,482 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,482 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,483 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,483 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,484 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,484 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,487 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,488 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,488 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,489 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,493 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,493 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,503 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,504 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,505 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:32,551 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:39:32,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:32,620 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-18 18:39:32,623 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-18 18:39:32,676 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,685 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,685 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,686 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,687 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,700 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,701 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,702 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,702 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,703 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,703 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,705 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,706 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 18:39:32,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 18:39:32,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 18:39:32,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 18:39:32,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 18:39:32,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 18:39:32,769 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 18:39:32,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 18:39:32,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 18:39:32,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 18:39:32,807 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 18:39:32,824 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,829 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,874 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,874 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,874 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,875 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,875 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,876 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,877 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,877 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,878 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,879 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,879 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,880 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,881 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,882 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,883 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,883 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,883 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,888 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,888 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,898 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,899 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,899 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:32,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:32,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:39:32,984 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-18 18:39:32,985 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-18 18:39:33,016 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,017 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,018 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,018 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,024 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,024 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,025 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,025 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,026 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,027 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,027 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,027 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,060 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 18:39:33,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 18:39:33,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 18:39:33,062 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 18:39:33,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 18:39:33,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 18:39:33,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 18:39:33,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 18:39:33,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 18:39:33,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 18:39:33,089 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 18:39:33,104 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,107 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,138 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,140 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,140 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,141 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,141 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,142 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,142 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,143 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,143 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,143 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,144 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,144 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,144 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,146 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,154 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,157 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,168 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,169 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,169 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 18:39:33,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:33,493 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:39:33,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33 WrapperNode [2022-11-18 18:39:33,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:33,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:33,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:39:33,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:39:33,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,667 INFO L138 Inliner]: procedures = 717, calls = 1917, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1014 [2022-11-18 18:39:33,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:33,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:39:33,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:39:33,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:39:33,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:39:33,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:39:33,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:39:33,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:39:33,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (1/1) ... [2022-11-18 18:39:33,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:33,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:33,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:33,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-18 18:39:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-18 18:39:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-18 18:39:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-18 18:39:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:39:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 18:39:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 18:39:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 18:39:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 18:39:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 18:39:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 18:39:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:39:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 18:39:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 18:39:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-18 18:39:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-18 18:39:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 18:39:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 18:39:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 18:39:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 18:39:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-18 18:39:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-18 18:39:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 18:39:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 18:39:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:39:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:39:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:39:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-18 18:39:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-18 18:39:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-18 18:39:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-18 18:39:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:39:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:39:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 18:39:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 18:39:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 18:39:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 18:39:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 18:39:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 18:39:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:39:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-18 18:39:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-18 18:39:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-18 18:39:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-18 18:39:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 18:39:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 18:39:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:39:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:39:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:39:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:39:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-18 18:39:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-18 18:39:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-18 18:39:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-18 18:39:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:39:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:39:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 18:39:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:39:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-18 18:39:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-18 18:39:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 18:39:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 18:39:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 18:39:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 18:39:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-18 18:39:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 18:39:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 18:39:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 18:39:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 18:39:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-18 18:39:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-18 18:39:34,307 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:39:34,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:39:39,831 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:39,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:39,840 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 18:39:39,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:39 BoogieIcfgContainer [2022-11-18 18:39:39,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:39,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:39:39,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:39:39,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:39:39,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:39:30" (1/3) ... [2022-11-18 18:39:39,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692767c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:39, skipping insertion in model container [2022-11-18 18:39:39,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:33" (2/3) ... [2022-11-18 18:39:39,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692767c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:39, skipping insertion in model container [2022-11-18 18:39:39,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:39" (3/3) ... [2022-11-18 18:39:39,851 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-11-18 18:39:39,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:39:39,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:39:39,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:39,941 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;@2b7e453c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:39,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 18:39:39,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 436 states, 251 states have (on average 1.2589641434262948) internal successors, (316), 254 states have internal predecessors, (316), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-11-18 18:39:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:39:39,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:39,974 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:39,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1918255772, now seen corresponding path program 1 times [2022-11-18 18:39:40,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:40,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195475250] [2022-11-18 18:39:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:40,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:40,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:40,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:40,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:39:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:41,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1625 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:39:41,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-18 18:39:41,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:41,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:41,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195475250] [2022-11-18 18:39:41,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195475250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:41,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:41,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:39:41,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313000159] [2022-11-18 18:39:41,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:41,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:39:41,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:41,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:39:41,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:39:41,607 INFO L87 Difference]: Start difference. First operand has 436 states, 251 states have (on average 1.2589641434262948) internal successors, (316), 254 states have internal predecessors, (316), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:41,726 INFO L93 Difference]: Finished difference Result 859 states and 1367 transitions. [2022-11-18 18:39:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:39:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-11-18 18:39:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:41,741 INFO L225 Difference]: With dead ends: 859 [2022-11-18 18:39:41,742 INFO L226 Difference]: Without dead ends: 429 [2022-11-18 18:39:41,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:39:41,753 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:41,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:39:41,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-11-18 18:39:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-11-18 18:39:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 245 states have (on average 1.2326530612244897) internal successors, (302), 248 states have internal predecessors, (302), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-11-18 18:39:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 612 transitions. [2022-11-18 18:39:41,852 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 612 transitions. Word has length 133 [2022-11-18 18:39:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:41,855 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 612 transitions. [2022-11-18 18:39:41,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 612 transitions. [2022-11-18 18:39:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:39:41,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:41,867 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:41,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:42,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:42,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash 49472870, now seen corresponding path program 1 times [2022-11-18 18:39:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:42,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794284841] [2022-11-18 18:39:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:42,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:42,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:42,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:39:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:43,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1625 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:39:43,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:39:43,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:43,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:43,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794284841] [2022-11-18 18:39:43,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794284841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:43,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:43,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:39:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686078743] [2022-11-18 18:39:43,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:43,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:39:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:39:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:39:43,517 INFO L87 Difference]: Start difference. First operand 429 states and 612 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:39:45,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:39:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:46,461 INFO L93 Difference]: Finished difference Result 824 states and 1193 transitions. [2022-11-18 18:39:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 133 [2022-11-18 18:39:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:46,469 INFO L225 Difference]: With dead ends: 824 [2022-11-18 18:39:46,470 INFO L226 Difference]: Without dead ends: 431 [2022-11-18 18:39:46,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:46,474 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 35 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:46,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2259 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 18:39:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-18 18:39:46,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2022-11-18 18:39:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 246 states have (on average 1.2317073170731707) internal successors, (303), 250 states have internal predecessors, (303), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (168), 154 states have call predecessors, (168), 154 states have call successors, (168) [2022-11-18 18:39:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 627 transitions. [2022-11-18 18:39:46,543 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 627 transitions. Word has length 133 [2022-11-18 18:39:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:46,546 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 627 transitions. [2022-11-18 18:39:46,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:39:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 627 transitions. [2022-11-18 18:39:46,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-18 18:39:46,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:46,550 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:46,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:46,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:46,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 339867980, now seen corresponding path program 1 times [2022-11-18 18:39:46,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827065376] [2022-11-18 18:39:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:46,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:46,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:46,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:46,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:39:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:48,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:39:48,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:39:48,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:48,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:48,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827065376] [2022-11-18 18:39:48,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827065376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:48,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:48,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:39:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861427317] [2022-11-18 18:39:48,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:48,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:39:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:39:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:39:48,387 INFO L87 Difference]: Start difference. First operand 431 states and 627 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:39:51,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:39:52,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:52,404 INFO L93 Difference]: Finished difference Result 847 states and 1266 transitions. [2022-11-18 18:39:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:39:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 141 [2022-11-18 18:39:52,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:52,412 INFO L225 Difference]: With dead ends: 847 [2022-11-18 18:39:52,412 INFO L226 Difference]: Without dead ends: 452 [2022-11-18 18:39:52,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:39:52,423 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 71 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:52,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 3329 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-18 18:39:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-18 18:39:52,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2022-11-18 18:39:52,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 262 states have (on average 1.2404580152671756) internal successors, (325), 266 states have internal predecessors, (325), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (187), 157 states have call predecessors, (187), 156 states have call successors, (187) [2022-11-18 18:39:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 670 transitions. [2022-11-18 18:39:52,482 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 670 transitions. Word has length 141 [2022-11-18 18:39:52,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:52,483 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 670 transitions. [2022-11-18 18:39:52,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:39:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 670 transitions. [2022-11-18 18:39:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 18:39:52,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:52,487 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:52,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:52,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:52,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:52,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1643588180, now seen corresponding path program 1 times [2022-11-18 18:39:52,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:52,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377770829] [2022-11-18 18:39:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:52,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:52,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:52,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:39:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:54,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:39:54,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-18 18:39:54,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:54,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:54,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377770829] [2022-11-18 18:39:54,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377770829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:54,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:54,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:39:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721442151] [2022-11-18 18:39:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:54,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:39:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:54,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:39:54,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:54,423 INFO L87 Difference]: Start difference. First operand 450 states and 670 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:39:57,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:39:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:58,171 INFO L93 Difference]: Finished difference Result 872 states and 1341 transitions. [2022-11-18 18:39:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:39:58,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 156 [2022-11-18 18:39:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:58,177 INFO L225 Difference]: With dead ends: 872 [2022-11-18 18:39:58,177 INFO L226 Difference]: Without dead ends: 458 [2022-11-18 18:39:58,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:39:58,181 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 58 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:58,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2779 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 18:39:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-18 18:39:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 450. [2022-11-18 18:39:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 262 states have (on average 1.2404580152671756) internal successors, (325), 266 states have internal predecessors, (325), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (187), 157 states have call predecessors, (187), 156 states have call successors, (187) [2022-11-18 18:39:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 670 transitions. [2022-11-18 18:39:58,220 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 670 transitions. Word has length 156 [2022-11-18 18:39:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:58,221 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 670 transitions. [2022-11-18 18:39:58,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:39:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 670 transitions. [2022-11-18 18:39:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-18 18:39:58,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:58,224 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:58,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:58,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:58,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1003251797, now seen corresponding path program 1 times [2022-11-18 18:39:58,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:58,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451287460] [2022-11-18 18:39:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:58,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:58,442 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:58,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 18:39:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:39:59,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-18 18:40:00,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:00,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:00,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451287460] [2022-11-18 18:40:00,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451287460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:00,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:00,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:40:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4050906] [2022-11-18 18:40:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:00,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:40:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:40:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:40:00,426 INFO L87 Difference]: Start difference. First operand 450 states and 670 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-18 18:40:04,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:05,873 INFO L93 Difference]: Finished difference Result 894 states and 1360 transitions. [2022-11-18 18:40:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:40:05,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 172 [2022-11-18 18:40:05,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:05,880 INFO L225 Difference]: With dead ends: 894 [2022-11-18 18:40:05,880 INFO L226 Difference]: Without dead ends: 480 [2022-11-18 18:40:05,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:40:05,885 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 130 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:05,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 3781 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-18 18:40:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-18 18:40:05,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 462. [2022-11-18 18:40:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 272 states have (on average 1.2463235294117647) internal successors, (339), 276 states have internal predecessors, (339), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-18 18:40:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 686 transitions. [2022-11-18 18:40:05,923 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 686 transitions. Word has length 172 [2022-11-18 18:40:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:05,923 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 686 transitions. [2022-11-18 18:40:05,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-18 18:40:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 686 transitions. [2022-11-18 18:40:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:40:05,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:05,933 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:05,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-18 18:40:06,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:06,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:06,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1942699821, now seen corresponding path program 2 times [2022-11-18 18:40:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:06,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747314451] [2022-11-18 18:40:06,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:40:06,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:06,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:06,155 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:06,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 18:40:10,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:40:10,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:40:10,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1927 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:40:10,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 18:40:11,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:11,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:11,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747314451] [2022-11-18 18:40:11,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747314451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:11,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:11,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:40:11,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372570084] [2022-11-18 18:40:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:11,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:40:11,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:40:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:40:11,070 INFO L87 Difference]: Start difference. First operand 462 states and 686 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:40:15,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:17,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:19,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:22,987 INFO L93 Difference]: Finished difference Result 924 states and 1434 transitions. [2022-11-18 18:40:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:40:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-18 18:40:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:22,995 INFO L225 Difference]: With dead ends: 924 [2022-11-18 18:40:22,995 INFO L226 Difference]: Without dead ends: 498 [2022-11-18 18:40:22,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:40:23,000 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 23 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:23,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2890 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-18 18:40:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-18 18:40:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 470. [2022-11-18 18:40:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 280 states have (on average 1.2464285714285714) internal successors, (349), 284 states have internal predecessors, (349), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-18 18:40:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 696 transitions. [2022-11-18 18:40:23,034 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 696 transitions. Word has length 187 [2022-11-18 18:40:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:23,034 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 696 transitions. [2022-11-18 18:40:23,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:40:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 696 transitions. [2022-11-18 18:40:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:40:23,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:23,038 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:23,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-18 18:40:23,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:23,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash -375941871, now seen corresponding path program 1 times [2022-11-18 18:40:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:23,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212588909] [2022-11-18 18:40:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:23,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:23,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:23,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:23,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 18:40:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:25,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:40:25,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 18:40:26,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:26,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:26,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212588909] [2022-11-18 18:40:26,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212588909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:26,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:26,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:40:26,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600474570] [2022-11-18 18:40:26,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:26,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:40:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:26,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:40:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:40:26,218 INFO L87 Difference]: Start difference. First operand 470 states and 696 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:40:31,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:33,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:35,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:39,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:39,637 INFO L93 Difference]: Finished difference Result 934 states and 1444 transitions. [2022-11-18 18:40:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:40:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-18 18:40:39,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:39,647 INFO L225 Difference]: With dead ends: 934 [2022-11-18 18:40:39,647 INFO L226 Difference]: Without dead ends: 500 [2022-11-18 18:40:39,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:40:39,652 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 20 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3502 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-11-18 18:40:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-18 18:40:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 474. [2022-11-18 18:40:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 284 states have (on average 1.2429577464788732) internal successors, (353), 288 states have internal predecessors, (353), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-18 18:40:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 700 transitions. [2022-11-18 18:40:39,685 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 700 transitions. Word has length 187 [2022-11-18 18:40:39,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:39,685 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 700 transitions. [2022-11-18 18:40:39,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:40:39,686 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 700 transitions. [2022-11-18 18:40:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:40:39,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:39,689 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:39,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:39,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:39,911 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1518444337, now seen corresponding path program 1 times [2022-11-18 18:40:39,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:39,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994313120] [2022-11-18 18:40:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:39,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:39,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:39,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:39,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 18:40:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:42,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 18:40:42,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:45,916 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1|)) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1|)) (_ bv0 64))))) is different from true [2022-11-18 18:40:48,337 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2|)))))) is different from true [2022-11-18 18:40:48,939 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 31 treesize of output 19 [2022-11-18 18:40:48,950 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 25 treesize of output 13 [2022-11-18 18:40:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 18:40:49,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:49,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:49,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994313120] [2022-11-18 18:40:49,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994313120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:49,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:49,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:40:49,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675729930] [2022-11-18 18:40:49,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:49,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:40:49,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:40:49,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=74, Unknown=2, NotChecked=34, Total=132 [2022-11-18 18:40:49,116 INFO L87 Difference]: Start difference. First operand 474 states and 700 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 18:40:55,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:03,860 INFO L93 Difference]: Finished difference Result 946 states and 1459 transitions. [2022-11-18 18:41:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:41:03,862 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 187 [2022-11-18 18:41:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:03,868 INFO L225 Difference]: With dead ends: 946 [2022-11-18 18:41:03,868 INFO L226 Difference]: Without dead ends: 535 [2022-11-18 18:41:03,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=68, Invalid=210, Unknown=2, NotChecked=62, Total=342 [2022-11-18 18:41:03,872 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 77 mSDsluCounter, 4249 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 4840 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1398 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:03,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 4840 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 883 Invalid, 1 Unknown, 1398 Unchecked, 13.1s Time] [2022-11-18 18:41:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-18 18:41:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 504. [2022-11-18 18:41:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 307 states have (on average 1.237785016286645) internal successors, (380), 311 states have internal predecessors, (380), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (207), 162 states have call predecessors, (207), 160 states have call successors, (207) [2022-11-18 18:41:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 749 transitions. [2022-11-18 18:41:03,915 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 749 transitions. Word has length 187 [2022-11-18 18:41:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:03,915 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 749 transitions. [2022-11-18 18:41:03,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 18:41:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 749 transitions. [2022-11-18 18:41:03,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:41:03,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:03,919 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:03,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:04,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:04,136 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash 473136529, now seen corresponding path program 1 times [2022-11-18 18:41:04,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:04,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705503219] [2022-11-18 18:41:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:04,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:04,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:04,139 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:04,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 18:41:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:06,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:41:06,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 18:41:06,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:06,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:06,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705503219] [2022-11-18 18:41:06,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705503219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:06,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:06,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:06,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791036685] [2022-11-18 18:41:06,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:06,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:06,268 INFO L87 Difference]: Start difference. First operand 504 states and 749 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:41:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:06,532 INFO L93 Difference]: Finished difference Result 974 states and 1516 transitions. [2022-11-18 18:41:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:41:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-18 18:41:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:06,539 INFO L225 Difference]: With dead ends: 974 [2022-11-18 18:41:06,539 INFO L226 Difference]: Without dead ends: 524 [2022-11-18 18:41:06,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:06,544 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 8 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:06,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2518 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:41:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-11-18 18:41:06,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 512. [2022-11-18 18:41:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 315 states have (on average 1.234920634920635) internal successors, (389), 319 states have internal predecessors, (389), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (207), 162 states have call predecessors, (207), 160 states have call successors, (207) [2022-11-18 18:41:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 758 transitions. [2022-11-18 18:41:06,583 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 758 transitions. Word has length 187 [2022-11-18 18:41:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:06,583 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 758 transitions. [2022-11-18 18:41:06,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:41:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 758 transitions. [2022-11-18 18:41:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-18 18:41:06,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:06,587 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:06,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:06,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:06,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:06,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:06,815 INFO L85 PathProgramCache]: Analyzing trace with hash -755362783, now seen corresponding path program 1 times [2022-11-18 18:41:06,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:06,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552805812] [2022-11-18 18:41:06,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:06,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:06,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:06,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:06,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 18:41:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:08,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:41:08,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-18 18:41:09,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:09,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:09,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552805812] [2022-11-18 18:41:09,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552805812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:09,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:09,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:41:09,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237901291] [2022-11-18 18:41:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:09,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:41:09,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:41:09,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:09,461 INFO L87 Difference]: Start difference. First operand 512 states and 758 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:41:11,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:11,941 INFO L93 Difference]: Finished difference Result 956 states and 1436 transitions. [2022-11-18 18:41:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:41:11,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2022-11-18 18:41:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:11,948 INFO L225 Difference]: With dead ends: 956 [2022-11-18 18:41:11,948 INFO L226 Difference]: Without dead ends: 527 [2022-11-18 18:41:11,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:11,951 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 7 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:11,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3649 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 18:41:11,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-11-18 18:41:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2022-11-18 18:41:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 325 states have (on average 1.236923076923077) internal successors, (402), 329 states have internal predecessors, (402), 164 states have call successors, (164), 31 states have call predecessors, (164), 34 states have return successors, (214), 165 states have call predecessors, (214), 162 states have call successors, (214) [2022-11-18 18:41:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 780 transitions. [2022-11-18 18:41:11,992 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 780 transitions. Word has length 188 [2022-11-18 18:41:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 780 transitions. [2022-11-18 18:41:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:41:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 780 transitions. [2022-11-18 18:41:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-18 18:41:11,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:11,997 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:12,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:12,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:12,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:12,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:12,219 INFO L85 PathProgramCache]: Analyzing trace with hash 120656223, now seen corresponding path program 1 times [2022-11-18 18:41:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:12,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611061983] [2022-11-18 18:41:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:12,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:12,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:12,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:12,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 18:41:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:14,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:41:14,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 18:41:14,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:14,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:14,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611061983] [2022-11-18 18:41:14,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611061983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:14,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:14,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:41:14,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141433928] [2022-11-18 18:41:14,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:14,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:41:14,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:14,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:41:14,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:41:14,999 INFO L87 Difference]: Start difference. First operand 525 states and 780 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 18:41:17,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:19,410 INFO L93 Difference]: Finished difference Result 954 states and 1432 transitions. [2022-11-18 18:41:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:41:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 188 [2022-11-18 18:41:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:19,417 INFO L225 Difference]: With dead ends: 954 [2022-11-18 18:41:19,417 INFO L226 Difference]: Without dead ends: 510 [2022-11-18 18:41:19,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:41:19,421 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 8 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:19,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4494 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 18:41:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-18 18:41:19,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2022-11-18 18:41:19,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 313 states have (on average 1.2300319488817892) internal successors, (385), 318 states have internal predecessors, (385), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (208), 161 states have call predecessors, (208), 160 states have call successors, (208) [2022-11-18 18:41:19,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 755 transitions. [2022-11-18 18:41:19,461 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 755 transitions. Word has length 188 [2022-11-18 18:41:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:19,462 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 755 transitions. [2022-11-18 18:41:19,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 18:41:19,462 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 755 transitions. [2022-11-18 18:41:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-18 18:41:19,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:19,465 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:19,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-18 18:41:19,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:19,683 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1113187243, now seen corresponding path program 1 times [2022-11-18 18:41:19,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:19,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13209318] [2022-11-18 18:41:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:19,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:19,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:19,686 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:19,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 18:41:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:21,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 18:41:21,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:25,653 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3|)))))) is different from true [2022-11-18 18:41:28,085 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4|)))))) is different from true [2022-11-18 18:41:29,086 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 31 treesize of output 19 [2022-11-18 18:41:29,100 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 25 treesize of output 13 [2022-11-18 18:41:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 4 not checked. [2022-11-18 18:41:29,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:41:33,441 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 18:41:33,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-18 18:41:33,548 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-18 18:41:33,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-18 18:41:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 18:41:33,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:33,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13209318] [2022-11-18 18:41:33,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13209318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:41:33,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:41:33,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2022-11-18 18:41:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774101329] [2022-11-18 18:41:33,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:41:33,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:41:33,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:41:33,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=108, Unknown=2, NotChecked=42, Total=182 [2022-11-18 18:41:33,847 INFO L87 Difference]: Start difference. First operand 510 states and 755 transitions. Second operand has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 14 states have internal predecessors, (113), 6 states have call successors, (40), 4 states have call predecessors, (40), 5 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-11-18 18:41:40,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:42,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:44,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:51,759 INFO L93 Difference]: Finished difference Result 980 states and 1506 transitions. [2022-11-18 18:41:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:41:51,761 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 14 states have internal predecessors, (113), 6 states have call successors, (40), 4 states have call predecessors, (40), 5 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) Word has length 198 [2022-11-18 18:41:51,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:51,766 INFO L225 Difference]: With dead ends: 980 [2022-11-18 18:41:51,766 INFO L226 Difference]: Without dead ends: 549 [2022-11-18 18:41:51,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 383 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=100, Invalid=326, Unknown=2, NotChecked=78, Total=506 [2022-11-18 18:41:51,771 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 87 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 4834 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1375 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:51,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 4834 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 872 Invalid, 3 Unknown, 1375 Unchecked, 15.7s Time] [2022-11-18 18:41:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-11-18 18:41:51,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 526. [2022-11-18 18:41:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 324 states have (on average 1.2222222222222223) internal successors, (396), 329 states have internal predecessors, (396), 164 states have call successors, (164), 33 states have call predecessors, (164), 36 states have return successors, (210), 164 states have call predecessors, (210), 162 states have call successors, (210) [2022-11-18 18:41:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 770 transitions. [2022-11-18 18:41:51,814 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 770 transitions. Word has length 198 [2022-11-18 18:41:51,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:51,815 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 770 transitions. [2022-11-18 18:41:51,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 14 states have internal predecessors, (113), 6 states have call successors, (40), 4 states have call predecessors, (40), 5 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-11-18 18:41:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 770 transitions. [2022-11-18 18:41:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-18 18:41:51,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:51,818 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:51,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:52,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:52,042 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash -779162427, now seen corresponding path program 1 times [2022-11-18 18:41:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:52,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811710014] [2022-11-18 18:41:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:52,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:52,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:52,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:52,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 18:41:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:41:54,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:54,875 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-18 18:41:54,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:54,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:54,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811710014] [2022-11-18 18:41:54,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811710014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:54,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:54,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:41:54,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974999649] [2022-11-18 18:41:54,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:54,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:54,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:54,879 INFO L87 Difference]: Start difference. First operand 526 states and 770 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-18 18:41:57,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:58,474 INFO L93 Difference]: Finished difference Result 954 states and 1430 transitions. [2022-11-18 18:41:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:41:58,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 199 [2022-11-18 18:41:58,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:58,480 INFO L225 Difference]: With dead ends: 954 [2022-11-18 18:41:58,480 INFO L226 Difference]: Without dead ends: 528 [2022-11-18 18:41:58,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:41:58,484 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 66 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:58,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2758 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 18:41:58,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-18 18:41:58,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-11-18 18:41:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 325 states have (on average 1.2215384615384615) internal successors, (397), 331 states have internal predecessors, (397), 164 states have call successors, (164), 33 states have call predecessors, (164), 37 states have return successors, (221), 164 states have call predecessors, (221), 162 states have call successors, (221) [2022-11-18 18:41:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 782 transitions. [2022-11-18 18:41:58,522 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 782 transitions. Word has length 199 [2022-11-18 18:41:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:58,522 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 782 transitions. [2022-11-18 18:41:58,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-18 18:41:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 782 transitions. [2022-11-18 18:41:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-18 18:41:58,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:58,526 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:58,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:58,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:58,751 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash 413287337, now seen corresponding path program 1 times [2022-11-18 18:41:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:58,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191908985] [2022-11-18 18:41:58,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:58,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:58,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:58,757 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:58,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 18:42:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:01,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:42:01,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-18 18:42:01,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:01,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:01,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191908985] [2022-11-18 18:42:01,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191908985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:01,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:01,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:42:01,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744161094] [2022-11-18 18:42:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:42:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:42:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:42:01,915 INFO L87 Difference]: Start difference. First operand 528 states and 782 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-18 18:42:04,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:06,524 INFO L93 Difference]: Finished difference Result 959 states and 1455 transitions. [2022-11-18 18:42:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:42:06,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 222 [2022-11-18 18:42:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:06,532 INFO L225 Difference]: With dead ends: 959 [2022-11-18 18:42:06,532 INFO L226 Difference]: Without dead ends: 531 [2022-11-18 18:42:06,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:42:06,536 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 89 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:06,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 3261 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 18:42:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-18 18:42:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2022-11-18 18:42:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 326 states have (on average 1.2208588957055215) internal successors, (398), 332 states have internal predecessors, (398), 164 states have call successors, (164), 33 states have call predecessors, (164), 37 states have return successors, (221), 164 states have call predecessors, (221), 162 states have call successors, (221) [2022-11-18 18:42:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 783 transitions. [2022-11-18 18:42:06,580 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 783 transitions. Word has length 222 [2022-11-18 18:42:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:06,581 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 783 transitions. [2022-11-18 18:42:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-18 18:42:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 783 transitions. [2022-11-18 18:42:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-18 18:42:06,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:06,585 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:06,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:06,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:06,811 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:06,812 INFO L85 PathProgramCache]: Analyzing trace with hash -989243332, now seen corresponding path program 1 times [2022-11-18 18:42:06,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:06,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641830173] [2022-11-18 18:42:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:06,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:06,815 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:06,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 18:42:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:09,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:42:09,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 18:42:10,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:10,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:10,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641830173] [2022-11-18 18:42:10,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641830173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:10,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:10,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:42:10,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717589536] [2022-11-18 18:42:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:10,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:42:10,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:42:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:42:10,630 INFO L87 Difference]: Start difference. First operand 529 states and 783 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-18 18:42:13,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:15,386 INFO L93 Difference]: Finished difference Result 964 states and 1451 transitions. [2022-11-18 18:42:15,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:42:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 253 [2022-11-18 18:42:15,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:15,392 INFO L225 Difference]: With dead ends: 964 [2022-11-18 18:42:15,392 INFO L226 Difference]: Without dead ends: 541 [2022-11-18 18:42:15,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:42:15,396 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 63 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3854 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:15,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3854 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-18 18:42:15,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-18 18:42:15,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2022-11-18 18:42:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 332 states have (on average 1.2198795180722892) internal successors, (405), 338 states have internal predecessors, (405), 169 states have call successors, (169), 34 states have call predecessors, (169), 38 states have return successors, (226), 169 states have call predecessors, (226), 167 states have call successors, (226) [2022-11-18 18:42:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 800 transitions. [2022-11-18 18:42:15,436 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 800 transitions. Word has length 253 [2022-11-18 18:42:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:15,437 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 800 transitions. [2022-11-18 18:42:15,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-18 18:42:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 800 transitions. [2022-11-18 18:42:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-18 18:42:15,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:15,440 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:15,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:15,659 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -643274454, now seen corresponding path program 2 times [2022-11-18 18:42:15,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:15,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300891537] [2022-11-18 18:42:15,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:42:15,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:15,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:15,667 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:15,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 18:42:23,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:42:23,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:42:23,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:42:23,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 213 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-18 18:42:24,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:42:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-11-18 18:42:25,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300891537] [2022-11-18 18:42:25,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300891537] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:42:25,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:42:25,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-11-18 18:42:25,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289338186] [2022-11-18 18:42:25,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:42:25,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:42:25,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:42:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:42:25,611 INFO L87 Difference]: Start difference. First operand 541 states and 800 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 7 states have call successors, (36) [2022-11-18 18:42:28,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:31,293 INFO L93 Difference]: Finished difference Result 1015 states and 1540 transitions. [2022-11-18 18:42:31,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:42:31,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 7 states have call successors, (36) Word has length 253 [2022-11-18 18:42:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:31,300 INFO L225 Difference]: With dead ends: 1015 [2022-11-18 18:42:31,300 INFO L226 Difference]: Without dead ends: 574 [2022-11-18 18:42:31,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:42:31,305 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 121 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 4228 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:31,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 4228 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-18 18:42:31,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-18 18:42:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 568. [2022-11-18 18:42:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 358 states have (on average 1.2262569832402235) internal successors, (439), 363 states have internal predecessors, (439), 170 states have call successors, (170), 34 states have call predecessors, (170), 38 states have return successors, (227), 171 states have call predecessors, (227), 168 states have call successors, (227) [2022-11-18 18:42:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 836 transitions. [2022-11-18 18:42:31,347 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 836 transitions. Word has length 253 [2022-11-18 18:42:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:31,348 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 836 transitions. [2022-11-18 18:42:31,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 4 states have call predecessors, (36), 7 states have call successors, (36) [2022-11-18 18:42:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 836 transitions. [2022-11-18 18:42:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-18 18:42:31,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:31,352 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:31,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:31,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:31,575 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:31,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1447295156, now seen corresponding path program 3 times [2022-11-18 18:42:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:31,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315714873] [2022-11-18 18:42:31,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:42:31,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:31,581 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:31,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43c280b-d2f3-4d99-84c4-441e94931cee/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 18:44:24,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 18:44:24,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:26,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-18 18:44:26,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:26,796 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 18:44:26,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 17 [2022-11-18 18:44:31,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:31,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:46:14,824 WARN L233 SmtUtils]: Spent 1.71m on a formula simplification. DAG size of input: 731 DAG size of output: 418 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 18:46:14,834 INFO L321 Elim1Store]: treesize reduction 11288, result has 17.4 percent of original size [2022-11-18 18:46:14,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 148 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 172 case distinctions, treesize of input 1141 treesize of output 2727