./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/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 caa9ea3c4b01be424b9d4542ff8acdcb39307db8022d65ba85a629a6a4ef591a --- 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 21:06:33,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:06:33,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:06:33,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:06:33,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:06:33,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:06:33,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:06:33,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:06:33,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:06:33,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:06:33,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:06:33,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:06:33,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:06:33,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:06:33,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:06:33,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:06:33,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:06:33,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:06:33,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:06:33,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:06:33,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:06:33,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:06:33,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:06:33,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:06:33,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:06:33,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:06:33,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:06:33,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:06:33,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:06:33,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:06:33,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:06:33,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:06:33,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:06:33,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:06:33,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:06:33,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:06:33,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:06:33,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:06:33,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:06:33,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:06:33,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:06:33,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 21:06:33,636 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:06:33,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:06:33,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:06:33,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:06:33,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:06:33,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:06:33,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:06:33,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:06:33,646 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:06:33,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:06:33,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:06:33,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:06:33,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:06:33,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:06:33,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:06:33,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:06:33,651 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:06:33,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:06:33,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:06:33,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:06:33,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:06:33,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:33,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:06:33,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:06:33,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:06:33,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:06:33,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:06:33,654 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:06:33,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:06:33,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:06:33,655 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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> caa9ea3c4b01be424b9d4542ff8acdcb39307db8022d65ba85a629a6a4ef591a [2022-11-18 21:06:34,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:06:34,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:06:34,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:06:34,111 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:06:34,112 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:06:34,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i [2022-11-18 21:06:34,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/data/41b638c47/2620a0f7a45443068d8495844b39bb88/FLAG48a05d811 [2022-11-18 21:06:35,385 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:06:35,386 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i [2022-11-18 21:06:35,443 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/data/41b638c47/2620a0f7a45443068d8495844b39bb88/FLAG48a05d811 [2022-11-18 21:06:35,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/data/41b638c47/2620a0f7a45443068d8495844b39bb88 [2022-11-18 21:06:35,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:06:35,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:06:35,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:35,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:06:35,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:06:35,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f21b2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35, skipping insertion in model container [2022-11-18 21:06:35,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:06:35,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:06:36,308 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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i[4499,4512] [2022-11-18 21:06:36,320 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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i[4559,4572] [2022-11-18 21:06:37,629 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,630 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,631 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,633 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,635 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,656 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,657 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,660 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:37,661 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:38,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 21:06:38,269 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 21:06:38,272 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 21:06:38,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 21:06:38,283 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 21:06:38,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 21:06:38,292 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 21:06:38,294 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 21:06:38,298 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 21:06:38,302 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 21:06:38,566 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 21:06:38,741 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:38,742 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:38,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:39,022 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:06:39,053 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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i[4499,4512] [2022-11-18 21:06:39,055 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_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_cursor_harness.i[4559,4572] [2022-11-18 21:06:39,141 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,142 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,144 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,146 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,148 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,160 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,161 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,162 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,163 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,229 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 21:06:39,231 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 21:06:39,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 21:06:39,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 21:06:39,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 21:06:39,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 21:06:39,238 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 21:06:39,239 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 21:06:39,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 21:06:39,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 21:06:39,274 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 21:06:39,388 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,388 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 21:06:39,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:39,921 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:06:39,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39 WrapperNode [2022-11-18 21:06:39,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:39,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:39,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:06:39,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:06:39,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,221 INFO L138 Inliner]: procedures = 693, calls = 2788, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 863 [2022-11-18 21:06:40,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:40,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:06:40,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:06:40,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:06:40,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:06:40,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:06:40,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:06:40,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:06:40,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (1/1) ... [2022-11-18 21:06:40,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:40,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:40,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:06:40,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:06:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-18 21:06:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-18 21:06:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-18 21:06:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-18 21:06:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-18 21:06:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-18 21:06:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 21:06:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:06:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 21:06:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 21:06:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:06:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 21:06:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 21:06:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:06:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:06:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 21:06:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:06:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:06:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 21:06:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 21:06:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 21:06:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 21:06:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 21:06:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:06:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 21:06:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-18 21:06:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-18 21:06:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 21:06:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 21:06:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 21:06:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-18 21:06:40,533 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-18 21:06:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:06:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:06:40,970 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:06:40,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:06:42,858 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:06:42,877 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:06:42,883 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:06:42,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:42 BoogieIcfgContainer [2022-11-18 21:06:42,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:06:42,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:06:42,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:06:42,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:06:42,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:06:35" (1/3) ... [2022-11-18 21:06:42,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365a3e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:42, skipping insertion in model container [2022-11-18 21:06:42,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:39" (2/3) ... [2022-11-18 21:06:42,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365a3e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:42, skipping insertion in model container [2022-11-18 21:06:42,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:42" (3/3) ... [2022-11-18 21:06:42,907 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_cursor_harness.i [2022-11-18 21:06:42,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:06:42,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:06:43,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:06:43,039 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;@2bec8f67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:06:43,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:06:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 83 states have internal predecessors, (105), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-18 21:06:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 21:06:43,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:43,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:06:43,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:43,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1516158171, now seen corresponding path program 1 times [2022-11-18 21:06:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:43,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278489985] [2022-11-18 21:06:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:43,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:06:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:06:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 21:06:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 21:06:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 21:06:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:06:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:06:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 21:06:44,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:44,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278489985] [2022-11-18 21:06:44,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278489985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:44,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117616577] [2022-11-18 21:06:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:44,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:44,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:44,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:44,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:06:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:45,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 21:06:45,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 21:06:45,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:06:45,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117616577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:45,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:06:45,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-11-18 21:06:45,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903717517] [2022-11-18 21:06:45,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:45,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:06:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:45,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:06:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:45,875 INFO L87 Difference]: Start difference. First operand has 123 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 83 states have internal predecessors, (105), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:06:45,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:45,975 INFO L93 Difference]: Finished difference Result 237 states and 329 transitions. [2022-11-18 21:06:45,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:06:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2022-11-18 21:06:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:45,999 INFO L225 Difference]: With dead ends: 237 [2022-11-18 21:06:46,000 INFO L226 Difference]: Without dead ends: 118 [2022-11-18 21:06:46,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:46,020 INFO L413 NwaCegarLoop]: 161 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, 161 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 21:06:46,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:06:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-18 21:06:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-18 21:06:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 79 states have internal predecessors, (99), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-18 21:06:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 156 transitions. [2022-11-18 21:06:46,141 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 156 transitions. Word has length 59 [2022-11-18 21:06:46,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:46,143 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 156 transitions. [2022-11-18 21:06:46,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:06:46,144 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 156 transitions. [2022-11-18 21:06:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 21:06:46,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:46,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:06:46,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:46,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:46,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:46,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:46,363 INFO L85 PathProgramCache]: Analyzing trace with hash -600570023, now seen corresponding path program 1 times [2022-11-18 21:06:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:46,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415367877] [2022-11-18 21:06:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:06:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:06:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 21:06:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 21:06:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 21:06:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:06:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:06:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 21:06:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:47,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415367877] [2022-11-18 21:06:47,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415367877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:47,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279173171] [2022-11-18 21:06:47,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:47,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:47,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:47,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:47,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:06:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:48,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:06:48,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 21:06:48,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:06:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 21:06:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279173171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:06:48,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:06:48,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2022-11-18 21:06:48,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881536254] [2022-11-18 21:06:48,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:06:48,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:06:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:06:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:06:48,696 INFO L87 Difference]: Start difference. First operand 118 states and 156 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 7 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-18 21:06:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:49,105 INFO L93 Difference]: Finished difference Result 202 states and 269 transitions. [2022-11-18 21:06:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:06:49,106 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 7 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 59 [2022-11-18 21:06:49,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:49,115 INFO L225 Difference]: With dead ends: 202 [2022-11-18 21:06:49,116 INFO L226 Difference]: Without dead ends: 121 [2022-11-18 21:06:49,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:06:49,125 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 213 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:49,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 678 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:06:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-18 21:06:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-18 21:06:49,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 80 states have (on average 1.2625) internal successors, (101), 82 states have internal predecessors, (101), 29 states have call successors, (29), 10 states have call predecessors, (29), 11 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-18 21:06:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2022-11-18 21:06:49,152 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 159 transitions. Word has length 59 [2022-11-18 21:06:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:49,171 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 159 transitions. [2022-11-18 21:06:49,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 7 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-18 21:06:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2022-11-18 21:06:49,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 21:06:49,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:49,191 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:49,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:49,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-18 21:06:49,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1282062374, now seen corresponding path program 1 times [2022-11-18 21:06:49,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:49,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45062681] [2022-11-18 21:06:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:06:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:06:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:06:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:06:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:06:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:06:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 21:06:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 21:06:50,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45062681] [2022-11-18 21:06:50,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45062681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:50,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:50,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:06:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170906034] [2022-11-18 21:06:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:50,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:06:50,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:06:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:06:50,318 INFO L87 Difference]: Start difference. First operand 121 states and 159 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 21:06:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:50,371 INFO L93 Difference]: Finished difference Result 205 states and 273 transitions. [2022-11-18 21:06:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:06:50,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2022-11-18 21:06:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:50,375 INFO L225 Difference]: With dead ends: 205 [2022-11-18 21:06:50,375 INFO L226 Difference]: Without dead ends: 151 [2022-11-18 21:06:50,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:06:50,377 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:50,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 472 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:06:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-18 21:06:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2022-11-18 21:06:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 100 states have internal predecessors, (124), 39 states have call successors, (39), 10 states have call predecessors, (39), 11 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2022-11-18 21:06:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 203 transitions. [2022-11-18 21:06:50,400 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 203 transitions. Word has length 63 [2022-11-18 21:06:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 203 transitions. [2022-11-18 21:06:50,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 21:06:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 203 transitions. [2022-11-18 21:06:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 21:06:50,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:50,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:06:50,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:06:50,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:50,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1565828381, now seen corresponding path program 1 times [2022-11-18 21:06:50,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346354971] [2022-11-18 21:06:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:06:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:06:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:06:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:06:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:06:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:06:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 21:06:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 21:06:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:51,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346354971] [2022-11-18 21:06:51,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346354971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:51,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:51,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:06:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293131159] [2022-11-18 21:06:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:51,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:06:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:51,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:06:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:06:51,860 INFO L87 Difference]: Start difference. First operand 149 states and 203 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 21:06:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:51,982 INFO L93 Difference]: Finished difference Result 160 states and 217 transitions. [2022-11-18 21:06:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:06:51,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 63 [2022-11-18 21:06:51,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:51,986 INFO L225 Difference]: With dead ends: 160 [2022-11-18 21:06:51,986 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:06:51,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:06:51,988 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 17 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:51,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1049 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:06:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:06:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:06:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 104 states have internal predecessors, (127), 39 states have call successors, (39), 10 states have call predecessors, (39), 12 states have return successors, (44), 38 states have call predecessors, (44), 38 states have call successors, (44) [2022-11-18 21:06:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 210 transitions. [2022-11-18 21:06:52,011 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 210 transitions. Word has length 63 [2022-11-18 21:06:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:52,012 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 210 transitions. [2022-11-18 21:06:52,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 21:06:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 210 transitions. [2022-11-18 21:06:52,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 21:06:52,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:52,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:06:52,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:06:52,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:52,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:52,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1937260075, now seen corresponding path program 1 times [2022-11-18 21:06:52,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:52,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321268842] [2022-11-18 21:06:52,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:52,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:06:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:06:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:06:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:06:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:06:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:06:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 21:06:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-18 21:06:54,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:54,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321268842] [2022-11-18 21:06:54,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321268842] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:54,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845061337] [2022-11-18 21:06:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:54,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:54,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:54,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:54,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:06:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:55,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-18 21:06:55,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 21:06:56,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:06:57,098 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 26 treesize of output 14 [2022-11-18 21:06:57,173 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-18 21:06:57,174 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 29 treesize of output 24 [2022-11-18 21:06:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 21:06:57,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845061337] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:06:57,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:06:57,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 18 [2022-11-18 21:06:57,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896489798] [2022-11-18 21:06:57,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:06:57,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 21:06:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:57,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 21:06:57,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-18 21:06:57,201 INFO L87 Difference]: Start difference. First operand 153 states and 210 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 21:06:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:58,772 INFO L93 Difference]: Finished difference Result 238 states and 333 transitions. [2022-11-18 21:06:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 21:06:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 67 [2022-11-18 21:06:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:58,776 INFO L225 Difference]: With dead ends: 238 [2022-11-18 21:06:58,776 INFO L226 Difference]: Without dead ends: 194 [2022-11-18 21:06:58,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 129 SyntacticMatches, 12 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-11-18 21:06:58,778 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 132 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:58,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1283 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 359 Invalid, 0 Unknown, 120 Unchecked, 1.0s Time] [2022-11-18 21:06:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-18 21:06:58,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-11-18 21:06:58,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 129 states have internal predecessors, (156), 53 states have call successors, (53), 12 states have call predecessors, (53), 14 states have return successors, (58), 52 states have call predecessors, (58), 51 states have call successors, (58) [2022-11-18 21:06:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 267 transitions. [2022-11-18 21:06:58,832 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 267 transitions. Word has length 67 [2022-11-18 21:06:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:58,848 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 267 transitions. [2022-11-18 21:06:58,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 21:06:58,848 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 267 transitions. [2022-11-18 21:06:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 21:06:58,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:58,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:06:58,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:59,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:59,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:06:59,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2019839885, now seen corresponding path program 1 times [2022-11-18 21:06:59,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:59,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374018191] [2022-11-18 21:06:59,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:59,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:07:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 21:07:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 21:07:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:07:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 21:07:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 21:07:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 21:07:00,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:00,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374018191] [2022-11-18 21:07:00,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374018191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:00,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657097054] [2022-11-18 21:07:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:00,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:00,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:00,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:00,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:07:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:01,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 21:07:01,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 21:07:01,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:01,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657097054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:01,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:01,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2022-11-18 21:07:01,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890702662] [2022-11-18 21:07:01,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:01,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:07:01,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:01,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:07:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:07:01,336 INFO L87 Difference]: Start difference. First operand 194 states and 267 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 21:07:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:01,591 INFO L93 Difference]: Finished difference Result 307 states and 425 transitions. [2022-11-18 21:07:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 21:07:01,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2022-11-18 21:07:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:01,598 INFO L225 Difference]: With dead ends: 307 [2022-11-18 21:07:01,599 INFO L226 Difference]: Without dead ends: 199 [2022-11-18 21:07:01,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:07:01,603 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 13 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:01,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1110 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:07:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-18 21:07:01,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-18 21:07:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 130 states have (on average 1.2307692307692308) internal successors, (160), 134 states have internal predecessors, (160), 53 states have call successors, (53), 12 states have call predecessors, (53), 15 states have return successors, (62), 52 states have call predecessors, (62), 51 states have call successors, (62) [2022-11-18 21:07:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 275 transitions. [2022-11-18 21:07:01,665 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 275 transitions. Word has length 71 [2022-11-18 21:07:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:01,666 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 275 transitions. [2022-11-18 21:07:01,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 21:07:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 275 transitions. [2022-11-18 21:07:01,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-18 21:07:01,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:01,671 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:07:01,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:01,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:01,885 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1756062200, now seen corresponding path program 1 times [2022-11-18 21:07:01,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:01,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219875172] [2022-11-18 21:07:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:01,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:07:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:07:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:07:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 21:07:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 21:07:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-18 21:07:03,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:03,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219875172] [2022-11-18 21:07:03,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219875172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:03,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233480444] [2022-11-18 21:07:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:03,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:03,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:03,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:03,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:07:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:03,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 21:07:03,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-18 21:07:04,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:04,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233480444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:04,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:04,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 21:07:04,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177203805] [2022-11-18 21:07:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:04,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:07:04,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:07:04,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:07:04,039 INFO L87 Difference]: Start difference. First operand 199 states and 275 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:07:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:04,355 INFO L93 Difference]: Finished difference Result 339 states and 472 transitions. [2022-11-18 21:07:04,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:07:04,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-11-18 21:07:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:04,360 INFO L225 Difference]: With dead ends: 339 [2022-11-18 21:07:04,360 INFO L226 Difference]: Without dead ends: 199 [2022-11-18 21:07:04,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:07:04,363 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 19 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:04,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 546 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 24 Unchecked, 0.2s Time] [2022-11-18 21:07:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-18 21:07:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-18 21:07:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 134 states have internal predecessors, (159), 53 states have call successors, (53), 12 states have call predecessors, (53), 15 states have return successors, (62), 52 states have call predecessors, (62), 51 states have call successors, (62) [2022-11-18 21:07:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 274 transitions. [2022-11-18 21:07:04,410 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 274 transitions. Word has length 73 [2022-11-18 21:07:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:04,413 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 274 transitions. [2022-11-18 21:07:04,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:07:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 274 transitions. [2022-11-18 21:07:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-18 21:07:04,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:04,423 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:07:04,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:04,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:04,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:04,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash -272523910, now seen corresponding path program 1 times [2022-11-18 21:07:04,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:04,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301735171] [2022-11-18 21:07:04,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:04,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:07:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:07:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:07:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 21:07:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 21:07:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 21:07:07,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:07,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301735171] [2022-11-18 21:07:07,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301735171] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149928368] [2022-11-18 21:07:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:07,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:07,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:07,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 21:07:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:08,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 21:07:08,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:08,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 21:07:08,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 21:07:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 21:07:09,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:09,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149928368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:09,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:09,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2022-11-18 21:07:09,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97796434] [2022-11-18 21:07:09,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:09,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:07:09,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:09,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:07:09,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-11-18 21:07:09,472 INFO L87 Difference]: Start difference. First operand 199 states and 274 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 21:07:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:09,971 INFO L93 Difference]: Finished difference Result 431 states and 614 transitions. [2022-11-18 21:07:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:07:09,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2022-11-18 21:07:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:09,978 INFO L225 Difference]: With dead ends: 431 [2022-11-18 21:07:09,978 INFO L226 Difference]: Without dead ends: 306 [2022-11-18 21:07:09,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-11-18 21:07:09,981 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 112 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:09,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1051 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 93 Invalid, 0 Unknown, 232 Unchecked, 0.4s Time] [2022-11-18 21:07:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-18 21:07:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 213. [2022-11-18 21:07:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 141 states have (on average 1.2127659574468086) internal successors, (171), 147 states have internal predecessors, (171), 55 states have call successors, (55), 13 states have call predecessors, (55), 16 states have return successors, (65), 52 states have call predecessors, (65), 53 states have call successors, (65) [2022-11-18 21:07:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 291 transitions. [2022-11-18 21:07:10,025 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 291 transitions. Word has length 73 [2022-11-18 21:07:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:10,025 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 291 transitions. [2022-11-18 21:07:10,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 21:07:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 291 transitions. [2022-11-18 21:07:10,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-18 21:07:10,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:10,028 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-18 21:07:10,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 21:07:10,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:10,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:10,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash 603495096, now seen corresponding path program 1 times [2022-11-18 21:07:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:10,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304291851] [2022-11-18 21:07:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:07:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:07:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 21:07:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 21:07:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 21:07:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 21:07:10,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:10,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304291851] [2022-11-18 21:07:10,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304291851] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:10,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479404466] [2022-11-18 21:07:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:10,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:10,705 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:10,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 21:07:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:11,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:07:11,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-18 21:07:11,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:11,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479404466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:11,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:11,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-11-18 21:07:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046104860] [2022-11-18 21:07:11,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:11,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:07:11,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:11,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:07:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:07:11,433 INFO L87 Difference]: Start difference. First operand 213 states and 291 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:07:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:11,515 INFO L93 Difference]: Finished difference Result 358 states and 493 transitions. [2022-11-18 21:07:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:07:11,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-11-18 21:07:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:11,520 INFO L225 Difference]: With dead ends: 358 [2022-11-18 21:07:11,520 INFO L226 Difference]: Without dead ends: 214 [2022-11-18 21:07:11,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:07:11,527 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 9 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:11,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 453 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:07:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-18 21:07:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2022-11-18 21:07:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 140 states have (on average 1.2) internal successors, (168), 145 states have internal predecessors, (168), 54 states have call successors, (54), 13 states have call predecessors, (54), 16 states have return successors, (63), 52 states have call predecessors, (63), 52 states have call successors, (63) [2022-11-18 21:07:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 285 transitions. [2022-11-18 21:07:11,576 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 285 transitions. Word has length 73 [2022-11-18 21:07:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:11,576 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 285 transitions. [2022-11-18 21:07:11,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 21:07:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 285 transitions. [2022-11-18 21:07:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 21:07:11,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:11,580 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-18 21:07:11,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:11,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:11,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1447989340, now seen corresponding path program 1 times [2022-11-18 21:07:11,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:11,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13002439] [2022-11-18 21:07:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 21:07:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 21:07:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:07:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 21:07:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 21:07:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 21:07:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 21:07:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-18 21:07:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:14,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13002439] [2022-11-18 21:07:14,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13002439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:14,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:14,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:07:14,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843897599] [2022-11-18 21:07:14,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:14,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:07:14,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:14,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:07:14,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:07:14,425 INFO L87 Difference]: Start difference. First operand 211 states and 285 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 21:07:15,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:15,901 INFO L93 Difference]: Finished difference Result 257 states and 354 transitions. [2022-11-18 21:07:15,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:07:15,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 84 [2022-11-18 21:07:15,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:15,905 INFO L225 Difference]: With dead ends: 257 [2022-11-18 21:07:15,906 INFO L226 Difference]: Without dead ends: 250 [2022-11-18 21:07:15,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-18 21:07:15,907 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 147 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:15,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 780 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 21:07:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-18 21:07:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 213. [2022-11-18 21:07:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 142 states have (on average 1.1971830985915493) internal successors, (170), 147 states have internal predecessors, (170), 54 states have call successors, (54), 13 states have call predecessors, (54), 16 states have return successors, (63), 52 states have call predecessors, (63), 52 states have call successors, (63) [2022-11-18 21:07:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 287 transitions. [2022-11-18 21:07:15,939 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 287 transitions. Word has length 84 [2022-11-18 21:07:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:15,940 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 287 transitions. [2022-11-18 21:07:15,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 21:07:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 287 transitions. [2022-11-18 21:07:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 21:07:15,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:15,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-18 21:07:15,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:07:15,943 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1189823902, now seen corresponding path program 1 times [2022-11-18 21:07:15,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:15,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634027049] [2022-11-18 21:07:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 21:07:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 21:07:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:07:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 21:07:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 21:07:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 21:07:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 21:07:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:07:16,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:16,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634027049] [2022-11-18 21:07:16,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634027049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:16,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:16,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:07:16,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786310823] [2022-11-18 21:07:16,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:16,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:07:16,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:16,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:07:16,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:07:16,989 INFO L87 Difference]: Start difference. First operand 213 states and 287 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-18 21:07:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:17,541 INFO L93 Difference]: Finished difference Result 325 states and 431 transitions. [2022-11-18 21:07:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:07:17,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 84 [2022-11-18 21:07:17,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:17,545 INFO L225 Difference]: With dead ends: 325 [2022-11-18 21:07:17,545 INFO L226 Difference]: Without dead ends: 206 [2022-11-18 21:07:17,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:07:17,547 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 59 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:17,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 308 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 21:07:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-18 21:07:17,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-11-18 21:07:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 136 states have (on average 1.1985294117647058) internal successors, (163), 140 states have internal predecessors, (163), 54 states have call successors, (54), 13 states have call predecessors, (54), 15 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2022-11-18 21:07:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 276 transitions. [2022-11-18 21:07:17,577 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 276 transitions. Word has length 84 [2022-11-18 21:07:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:17,578 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 276 transitions. [2022-11-18 21:07:17,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-18 21:07:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 276 transitions. [2022-11-18 21:07:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 21:07:17,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:17,581 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-18 21:07:17,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:07:17,582 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:17,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:17,582 INFO L85 PathProgramCache]: Analyzing trace with hash 295487979, now seen corresponding path program 1 times [2022-11-18 21:07:17,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:17,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087178810] [2022-11-18 21:07:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:17,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:07:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 21:07:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 21:07:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:07:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 21:07:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 21:07:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 21:07:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 21:07:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 21:07:19,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:19,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087178810] [2022-11-18 21:07:19,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087178810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:19,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:19,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 21:07:19,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559982440] [2022-11-18 21:07:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:19,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 21:07:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 21:07:19,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:07:19,553 INFO L87 Difference]: Start difference. First operand 206 states and 276 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-18 21:07:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:21,134 INFO L93 Difference]: Finished difference Result 213 states and 282 transitions. [2022-11-18 21:07:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 21:07:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 86 [2022-11-18 21:07:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:21,137 INFO L225 Difference]: With dead ends: 213 [2022-11-18 21:07:21,138 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 21:07:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2022-11-18 21:07:21,139 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 86 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:21,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1033 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 21:07:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 21:07:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 153. [2022-11-18 21:07:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.1553398058252426) internal successors, (119), 107 states have internal predecessors, (119), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 191 transitions. [2022-11-18 21:07:21,161 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 191 transitions. Word has length 86 [2022-11-18 21:07:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:21,161 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 191 transitions. [2022-11-18 21:07:21,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-18 21:07:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 191 transitions. [2022-11-18 21:07:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 21:07:21,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:21,164 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:21,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:07:21,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:21,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:21,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1406944127, now seen corresponding path program 1 times [2022-11-18 21:07:21,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:21,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781802052] [2022-11-18 21:07:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:23,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:07:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 21:07:23,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:23,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781802052] [2022-11-18 21:07:23,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781802052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:23,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528035737] [2022-11-18 21:07:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:23,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:23,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:23,041 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:23,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 21:07:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:23,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 21:07:23,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 21:07:24,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:24,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528035737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:24,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:24,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2022-11-18 21:07:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164371944] [2022-11-18 21:07:24,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:24,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:07:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:07:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2022-11-18 21:07:24,044 INFO L87 Difference]: Start difference. First operand 153 states and 191 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 5 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) [2022-11-18 21:07:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:24,383 INFO L93 Difference]: Finished difference Result 189 states and 231 transitions. [2022-11-18 21:07:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:07:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 5 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 97 [2022-11-18 21:07:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:24,386 INFO L225 Difference]: With dead ends: 189 [2022-11-18 21:07:24,387 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:24,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-11-18 21:07:24,389 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 49 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:24,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1181 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:07:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.145631067961165) internal successors, (118), 107 states have internal predecessors, (118), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 190 transitions. [2022-11-18 21:07:24,418 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 190 transitions. Word has length 97 [2022-11-18 21:07:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:24,419 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 190 transitions. [2022-11-18 21:07:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 5 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) [2022-11-18 21:07:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 190 transitions. [2022-11-18 21:07:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 21:07:24,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:24,423 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:24,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:24,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:24,637 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash 760529425, now seen corresponding path program 1 times [2022-11-18 21:07:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:24,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600520091] [2022-11-18 21:07:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:07:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 21:07:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 21:07:26,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600520091] [2022-11-18 21:07:26,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600520091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443630211] [2022-11-18 21:07:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:26,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:26,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:26,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:26,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 21:07:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:27,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:07:27,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 21:07:27,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:27,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443630211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:27,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:27,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2022-11-18 21:07:27,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94131803] [2022-11-18 21:07:27,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:27,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:07:27,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:27,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:07:27,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-11-18 21:07:27,422 INFO L87 Difference]: Start difference. First operand 153 states and 190 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 21:07:27,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:27,647 INFO L93 Difference]: Finished difference Result 234 states and 301 transitions. [2022-11-18 21:07:27,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:07:27,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 98 [2022-11-18 21:07:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:27,650 INFO L225 Difference]: With dead ends: 234 [2022-11-18 21:07:27,651 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 21:07:27,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-11-18 21:07:27,652 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 20 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:27,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 445 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:07:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 21:07:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2022-11-18 21:07:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 112 states have (on average 1.1339285714285714) internal successors, (127), 117 states have internal predecessors, (127), 40 states have call successors, (40), 13 states have call predecessors, (40), 15 states have return successors, (48), 37 states have call predecessors, (48), 39 states have call successors, (48) [2022-11-18 21:07:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2022-11-18 21:07:27,677 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 98 [2022-11-18 21:07:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:27,677 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2022-11-18 21:07:27,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 21:07:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2022-11-18 21:07:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-18 21:07:27,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:27,681 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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 21:07:27,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 21:07:27,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 21:07:27,892 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:27,893 INFO L85 PathProgramCache]: Analyzing trace with hash 579357075, now seen corresponding path program 1 times [2022-11-18 21:07:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:27,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234376527] [2022-11-18 21:07:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:27,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:07:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 21:07:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:07:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 21:07:29,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:29,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234376527] [2022-11-18 21:07:29,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234376527] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:29,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709512725] [2022-11-18 21:07:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:29,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:29,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:29,680 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:29,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 21:07:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:30,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 21:07:30,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-18 21:07:30,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:07:30,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709512725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:30,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:07:30,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2022-11-18 21:07:30,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358040112] [2022-11-18 21:07:30,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:30,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:07:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:30,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:07:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2022-11-18 21:07:30,624 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 21:07:30,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:30,893 INFO L93 Difference]: Finished difference Result 230 states and 280 transitions. [2022-11-18 21:07:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:07:30,895 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 105 [2022-11-18 21:07:30,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:30,896 INFO L225 Difference]: With dead ends: 230 [2022-11-18 21:07:30,897 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:30,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-11-18 21:07:30,899 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 32 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:30,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1229 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:07:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:30,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 107 states have internal predecessors, (116), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2022-11-18 21:07:30,920 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 105 [2022-11-18 21:07:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:30,921 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2022-11-18 21:07:30,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 21:07:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2022-11-18 21:07:30,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 21:07:30,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:30,924 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2022-11-18 21:07:30,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:31,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:31,136 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:31,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1720522272, now seen corresponding path program 1 times [2022-11-18 21:07:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:31,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432432465] [2022-11-18 21:07:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:31,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:07:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 21:07:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-18 21:07:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:31,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432432465] [2022-11-18 21:07:31,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432432465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:31,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:31,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:07:31,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6608715] [2022-11-18 21:07:31,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:31,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:07:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:07:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:07:31,876 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 21:07:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:32,409 INFO L93 Difference]: Finished difference Result 189 states and 228 transitions. [2022-11-18 21:07:32,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:07:32,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-11-18 21:07:32,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:32,411 INFO L225 Difference]: With dead ends: 189 [2022-11-18 21:07:32,412 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:32,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:07:32,413 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 50 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:32,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 289 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 21:07:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:32,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.116504854368932) internal successors, (115), 107 states have internal predecessors, (115), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 187 transitions. [2022-11-18 21:07:32,437 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 187 transitions. Word has length 107 [2022-11-18 21:07:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:32,437 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 187 transitions. [2022-11-18 21:07:32,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 21:07:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 187 transitions. [2022-11-18 21:07:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-18 21:07:32,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:32,441 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2022-11-18 21:07:32,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:07:32,441 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:32,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:32,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1000442815, now seen corresponding path program 1 times [2022-11-18 21:07:32,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:32,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685525730] [2022-11-18 21:07:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:07:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:07:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:07:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-18 21:07:33,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:33,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685525730] [2022-11-18 21:07:33,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685525730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:33,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:33,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:07:33,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373440025] [2022-11-18 21:07:33,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:33,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:07:33,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:33,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:07:33,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:07:33,098 INFO L87 Difference]: Start difference. First operand 153 states and 187 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 21:07:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:33,603 INFO L93 Difference]: Finished difference Result 203 states and 247 transitions. [2022-11-18 21:07:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:07:33,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 123 [2022-11-18 21:07:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:33,606 INFO L225 Difference]: With dead ends: 203 [2022-11-18 21:07:33,606 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:33,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:07:33,608 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 53 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:33,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 207 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 21:07:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.0970873786407767) internal successors, (113), 107 states have internal predecessors, (113), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 185 transitions. [2022-11-18 21:07:33,631 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 185 transitions. Word has length 123 [2022-11-18 21:07:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:33,631 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 185 transitions. [2022-11-18 21:07:33,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 21:07:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 185 transitions. [2022-11-18 21:07:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 21:07:33,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:33,635 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2022-11-18 21:07:33,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:07:33,635 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1057465539, now seen corresponding path program 1 times [2022-11-18 21:07:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:33,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691743524] [2022-11-18 21:07:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:33,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:07:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 21:07:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 21:07:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 21:07:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-18 21:07:34,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:34,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691743524] [2022-11-18 21:07:34,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691743524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:34,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:34,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:07:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464641673] [2022-11-18 21:07:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:34,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:07:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:07:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:07:34,725 INFO L87 Difference]: Start difference. First operand 153 states and 185 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 21:07:35,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:35,452 INFO L93 Difference]: Finished difference Result 212 states and 254 transitions. [2022-11-18 21:07:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:07:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 130 [2022-11-18 21:07:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:35,455 INFO L225 Difference]: With dead ends: 212 [2022-11-18 21:07:35,455 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:35,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:07:35,456 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 77 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:35,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 370 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 21:07:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.087378640776699) internal successors, (112), 107 states have internal predecessors, (112), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:35,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2022-11-18 21:07:35,479 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 130 [2022-11-18 21:07:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:35,480 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2022-11-18 21:07:35,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 21:07:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2022-11-18 21:07:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-18 21:07:35,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:35,483 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2022-11-18 21:07:35,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:07:35,483 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1919466878, now seen corresponding path program 1 times [2022-11-18 21:07:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:35,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759713372] [2022-11-18 21:07:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:35,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:07:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 21:07:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:07:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 21:07:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-18 21:07:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:36,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759713372] [2022-11-18 21:07:36,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759713372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:36,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:36,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:07:36,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534221930] [2022-11-18 21:07:36,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:36,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:07:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:36,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:07:36,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:07:36,376 INFO L87 Difference]: Start difference. First operand 153 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:07:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:36,964 INFO L93 Difference]: Finished difference Result 192 states and 227 transitions. [2022-11-18 21:07:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:07:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 132 [2022-11-18 21:07:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:36,967 INFO L225 Difference]: With dead ends: 192 [2022-11-18 21:07:36,967 INFO L226 Difference]: Without dead ends: 153 [2022-11-18 21:07:36,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:07:36,969 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 97 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:36,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 380 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 21:07:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-18 21:07:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-18 21:07:36,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 107 states have internal predecessors, (111), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2022-11-18 21:07:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2022-11-18 21:07:36,992 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 132 [2022-11-18 21:07:36,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:36,993 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2022-11-18 21:07:36,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:07:36,994 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2022-11-18 21:07:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 21:07:36,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:36,997 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2022-11-18 21:07:36,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:07:36,997 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:36,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:36,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1523548186, now seen corresponding path program 1 times [2022-11-18 21:07:36,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:36,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983130207] [2022-11-18 21:07:36,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:36,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:07:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:07:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 21:07:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:07:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 21:07:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 21:07:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 21:07:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 21:07:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:07:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:07:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 21:07:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 21:07:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:07:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:07:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:07:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 21:07:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-18 21:07:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983130207] [2022-11-18 21:07:40,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983130207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78703133] [2022-11-18 21:07:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:40,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:40,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:40,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:40,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 21:07:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:40,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-18 21:07:40,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 62 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 21:07:46,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:07:52,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78703133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:52,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:07:52,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 34] total 44 [2022-11-18 21:07:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884212106] [2022-11-18 21:07:52,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:07:52,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-18 21:07:52,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-18 21:07:52,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2992, Unknown=0, NotChecked=0, Total=3192 [2022-11-18 21:07:52,292 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 44 states, 38 states have (on average 3.1315789473684212) internal successors, (119), 33 states have internal predecessors, (119), 15 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (37), 15 states have call predecessors, (37), 14 states have call successors, (37) [2022-11-18 21:07:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:54,175 INFO L93 Difference]: Finished difference Result 168 states and 195 transitions. [2022-11-18 21:07:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:07:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 38 states have (on average 3.1315789473684212) internal successors, (119), 33 states have internal predecessors, (119), 15 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (37), 15 states have call predecessors, (37), 14 states have call successors, (37) Word has length 133 [2022-11-18 21:07:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:54,178 INFO L225 Difference]: With dead ends: 168 [2022-11-18 21:07:54,178 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 21:07:54,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 140 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=287, Invalid=4405, Unknown=0, NotChecked=0, Total=4692 [2022-11-18 21:07:54,181 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:54,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 423 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 638 Invalid, 0 Unknown, 108 Unchecked, 0.9s Time] [2022-11-18 21:07:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 21:07:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 21:07:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:07:54,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2022-11-18 21:07:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:54,184 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:07:54,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 38 states have (on average 3.1315789473684212) internal successors, (119), 33 states have internal predecessors, (119), 15 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (37), 15 states have call predecessors, (37), 14 states have call successors, (37) [2022-11-18 21:07:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:07:54,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 21:07:54,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:07:54,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:54,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:54,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 21:07:56,472 INFO L895 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0))) [2022-11-18 21:07:56,472 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2022-11-18 21:07:56,472 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) [2022-11-18 21:07:56,473 INFO L899 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2022-11-18 21:07:56,473 INFO L895 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (or (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (= |old(#length)| |#length|) (or (<= 0 (+ (div |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) (div (+ (- |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 15) 18446744073709551616))) .cse0) (or .cse0 (<= 0 (+ (div (+ (- |ensure_string_is_allocated_bounded_length_~len~1#1|) 15) 18446744073709551616) (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) (not (< 0 |#StackHeapBarrier|))) [2022-11-18 21:07:56,473 INFO L899 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2022-11-18 21:07:56,473 INFO L895 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) [2022-11-18 21:07:56,473 INFO L899 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2022-11-18 21:07:56,474 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) [2022-11-18 21:07:56,474 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (or (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) (not (< 0 |#StackHeapBarrier|))) [2022-11-18 21:07:56,474 INFO L899 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2022-11-18 21:07:56,474 INFO L899 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2022-11-18 21:07:56,474 INFO L895 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) [2022-11-18 21:07:56,474 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-18 21:07:56,474 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2022-11-18 21:07:56,474 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-18 21:07:56,475 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-11-18 21:07:56,475 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-11-18 21:07:56,475 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-11-18 21:07:56,475 INFO L895 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (let ((.cse0 (not (< 0 |#StackHeapBarrier|)))) (and (or (= |bounded_malloc_#in~size| bounded_malloc_~size) .cse0) (or .cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))))) [2022-11-18 21:07:56,475 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7684 7704) the Hoare annotation is: true [2022-11-18 21:07:56,475 INFO L899 garLoopResultBuilder]: For program point L7697(lines 7697 7701) no Hoare annotation was computed. [2022-11-18 21:07:56,476 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7684 7704) no Hoare annotation was computed. [2022-11-18 21:07:56,476 INFO L902 garLoopResultBuilder]: At program point L7686(line 7686) the Hoare annotation is: true [2022-11-18 21:07:56,476 INFO L899 garLoopResultBuilder]: For program point L7688(lines 7685 7704) no Hoare annotation was computed. [2022-11-18 21:07:56,476 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7684 7704) no Hoare annotation was computed. [2022-11-18 21:07:56,476 INFO L902 garLoopResultBuilder]: At program point L7686-1(line 7686) the Hoare annotation is: true [2022-11-18 21:07:56,477 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-18 21:07:56,477 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-18 21:07:56,477 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-18 21:07:56,477 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-18 21:07:56,477 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-18 21:07:56,477 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2022-11-18 21:07:56,478 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2022-11-18 21:07:56,478 INFO L899 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L902 garLoopResultBuilder]: At program point aws_byte_cursor_is_validENTRY(lines 7368 7372) the Hoare annotation is: true [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371-5(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371-4(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371-2(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371-8(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point L7371-6(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,479 INFO L899 garLoopResultBuilder]: For program point aws_byte_cursor_is_validEXIT(lines 7368 7372) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point L7371-11(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point L7371-10(line 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point L7370(lines 7370 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point L7370-2(lines 7370 7371) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point aws_byte_cursor_is_validFINAL(lines 7368 7372) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-18 21:07:56,480 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-18 21:07:56,480 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-18 21:07:56,481 INFO L899 garLoopResultBuilder]: For program point L6675-1(line 6675) no Hoare annotation was computed. [2022-11-18 21:07:56,481 INFO L895 garLoopResultBuilder]: At program point L6675(line 6675) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 8))) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) .cse0) 0) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) .cse0) 0) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0) (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0) (< 0 |#StackHeapBarrier|))) [2022-11-18 21:07:56,481 INFO L899 garLoopResultBuilder]: For program point L9549(lines 9549 9559) no Hoare annotation was computed. [2022-11-18 21:07:56,481 INFO L895 garLoopResultBuilder]: At program point L9549-1(lines 9549 9559) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse1 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse0 .cse1) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse2) 18446744073709551616)) .cse2))) .cse0 .cse1))) [2022-11-18 21:07:56,481 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 21:07:56,482 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 21:07:56,482 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2022-11-18 21:07:56,482 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2022-11-18 21:07:56,482 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2022-11-18 21:07:56,482 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2022-11-18 21:07:56,482 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2022-11-18 21:07:56,482 INFO L895 garLoopResultBuilder]: At program point L9560(line 9560) the Hoare annotation is: (and (<= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_#t~ret1347#1| 1) (<= 1 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_#t~ret1347#1|) (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) (< 0 |#StackHeapBarrier|)) [2022-11-18 21:07:56,482 INFO L899 garLoopResultBuilder]: For program point L9560-1(line 9560) no Hoare annotation was computed. [2022-11-18 21:07:56,483 INFO L895 garLoopResultBuilder]: At program point L9329-4(line 9329) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse2 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse4 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse0) 18446744073709551616)) .cse0))) .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse1 .cse2 .cse3 .cse4))) [2022-11-18 21:07:56,483 INFO L899 garLoopResultBuilder]: For program point L9329-5(line 9329) no Hoare annotation was computed. [2022-11-18 21:07:56,483 INFO L899 garLoopResultBuilder]: For program point L9329(line 9329) no Hoare annotation was computed. [2022-11-18 21:07:56,483 INFO L895 garLoopResultBuilder]: At program point L9552(line 9552) the Hoare annotation is: false [2022-11-18 21:07:56,484 INFO L895 garLoopResultBuilder]: At program point L9329-2(line 9329) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse2 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse4 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse0) 18446744073709551616)) .cse0))) .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse1 .cse2 .cse3 .cse4))) [2022-11-18 21:07:56,484 INFO L895 garLoopResultBuilder]: At program point L9552-1(line 9552) the Hoare annotation is: false [2022-11-18 21:07:56,484 INFO L899 garLoopResultBuilder]: For program point L9329-3(line 9329) no Hoare annotation was computed. [2022-11-18 21:07:56,484 INFO L899 garLoopResultBuilder]: For program point L9552-2(line 9552) no Hoare annotation was computed. [2022-11-18 21:07:56,485 INFO L895 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|)) (.cse1 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse3 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse4 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) (+ |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 8)) 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-18 21:07:56,485 INFO L895 garLoopResultBuilder]: At program point L9544-1(line 9544) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse3 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse4 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and .cse0 (<= 0 (let ((.cse1 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse1) 18446744073709551616)) .cse1))) .cse2 .cse3 .cse4 .cse5) (and .cse0 (<= 0 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_#t~ret1338#1|) (<= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_#t~ret1338#1| 0) .cse3 .cse5) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse2 .cse3 .cse4 .cse5))) [2022-11-18 21:07:56,485 INFO L899 garLoopResultBuilder]: For program point L9544-2(line 9544) no Hoare annotation was computed. [2022-11-18 21:07:56,486 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2022-11-18 21:07:56,486 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2022-11-18 21:07:56,486 INFO L899 garLoopResultBuilder]: For program point L9330(line 9330) no Hoare annotation was computed. [2022-11-18 21:07:56,486 INFO L899 garLoopResultBuilder]: For program point L9330-5(line 9330) no Hoare annotation was computed. [2022-11-18 21:07:56,486 INFO L899 garLoopResultBuilder]: For program point L9553(lines 9553 9558) no Hoare annotation was computed. [2022-11-18 21:07:56,487 INFO L895 garLoopResultBuilder]: At program point L9330-2(line 9330) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse2 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse4 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse0) 18446744073709551616)) .cse0))) .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse1 .cse2 .cse3 .cse4))) [2022-11-18 21:07:56,487 INFO L899 garLoopResultBuilder]: For program point L9330-3(line 9330) no Hoare annotation was computed. [2022-11-18 21:07:56,487 INFO L895 garLoopResultBuilder]: At program point L9330-4(line 9330) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0))) (let ((.cse1 (<= 0 (let ((.cse13 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse13) 18446744073709551616)) .cse13)))) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_cursor_~cur#1.base| 0)) (.cse0 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0)) (.cse7 (not .cse4)) (.cse8 (not (= |ULTIMATE.start_aws_string_eq_byte_cursor_~str#1.base| 0))) (.cse9 (= |ULTIMATE.start_aws_string_eq_byte_cursor_~cur#1.offset| 0)) (.cse10 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|)) (.cse12 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0))) (.cse11 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|)) (.cse3 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse7 .cse8 .cse9 .cse10 .cse11 .cse3 .cse5) (and .cse10 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) .cse12 .cse11 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 .cse3 .cse5)))) [2022-11-18 21:07:56,488 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 21:07:56,488 INFO L902 garLoopResultBuilder]: At program point L9562(line 9562) the Hoare annotation is: true [2022-11-18 21:07:56,488 INFO L899 garLoopResultBuilder]: For program point L9537(lines 9537 9561) no Hoare annotation was computed. [2022-11-18 21:07:56,488 INFO L899 garLoopResultBuilder]: For program point L9331(lines 9331 9339) no Hoare annotation was computed. [2022-11-18 21:07:56,488 INFO L895 garLoopResultBuilder]: At program point L9554(line 9554) the Hoare annotation is: false [2022-11-18 21:07:56,488 INFO L899 garLoopResultBuilder]: For program point L6672(lines 6672 6676) no Hoare annotation was computed. [2022-11-18 21:07:56,488 INFO L899 garLoopResultBuilder]: For program point L9554-1(line 9554) no Hoare annotation was computed. [2022-11-18 21:07:56,489 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2022-11-18 21:07:56,489 INFO L895 garLoopResultBuilder]: At program point L9538(line 9538) the Hoare annotation is: (< 0 |#StackHeapBarrier|) [2022-11-18 21:07:56,489 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2022-11-18 21:07:56,489 INFO L899 garLoopResultBuilder]: For program point L9538-5(lines 9538 9539) no Hoare annotation was computed. [2022-11-18 21:07:56,489 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 21:07:56,490 INFO L899 garLoopResultBuilder]: For program point L9340(lines 9340 9348) no Hoare annotation was computed. [2022-11-18 21:07:56,490 INFO L899 garLoopResultBuilder]: For program point L9538-1(lines 9538 9539) no Hoare annotation was computed. [2022-11-18 21:07:56,490 INFO L895 garLoopResultBuilder]: At program point L9538-2(line 9538) the Hoare annotation is: (< 0 |#StackHeapBarrier|) [2022-11-18 21:07:56,490 INFO L899 garLoopResultBuilder]: For program point L9538-3(line 9538) no Hoare annotation was computed. [2022-11-18 21:07:56,490 INFO L899 garLoopResultBuilder]: For program point L9555(lines 9555 9557) no Hoare annotation was computed. [2022-11-18 21:07:56,491 INFO L899 garLoopResultBuilder]: For program point L6673-3(lines 6673 6675) no Hoare annotation was computed. [2022-11-18 21:07:56,491 INFO L899 garLoopResultBuilder]: For program point L6673-1(lines 6673 6675) no Hoare annotation was computed. [2022-11-18 21:07:56,491 INFO L895 garLoopResultBuilder]: At program point L6673(line 6673) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 8))) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) .cse0) 0) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) .cse0) 0) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0) (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0) (< 0 |#StackHeapBarrier|))) [2022-11-18 21:07:56,491 INFO L895 garLoopResultBuilder]: At program point L9349(line 9349) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse2 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse4 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse0) 18446744073709551616)) .cse0))) .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse1 .cse2 .cse3 .cse4))) [2022-11-18 21:07:56,492 INFO L899 garLoopResultBuilder]: For program point L9349-1(line 9349) no Hoare annotation was computed. [2022-11-18 21:07:56,492 INFO L895 garLoopResultBuilder]: At program point L9349-2(lines 9327 9350) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0)) (.cse7 (<= 0 (let ((.cse9 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse9) 18446744073709551616)) .cse9)))) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|)) (.cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0))) (.cse4 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|)) (.cse8 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse5 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse0 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse6 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_#res#1| 0) (not .cse0) (not (= |ULTIMATE.start_aws_string_eq_byte_cursor_~str#1.base| 0)) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse2 .cse4 .cse5 .cse6))) (and .cse1 .cse7 .cse8 .cse5 .cse0 .cse6) (and .cse2 (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) .cse3 .cse4 .cse8 .cse5 .cse0 .cse6))) [2022-11-18 21:07:56,492 INFO L895 garLoopResultBuilder]: At program point L9548(line 9548) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.offset| 0)) (.cse2 (<= 2 |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|)) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~str~3#1.base| 0)) (.cse4 (< 0 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset| 0) (<= 0 (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|))) (+ (* 18446744073709551616 (div (- .cse0) 18446744073709551616)) .cse0))) .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base| |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.base|) 8) 0)) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| |ULTIMATE.start_aws_string_eq_byte_cursor_harness_~#cursor~2#1.offset|) .cse1 .cse2 .cse3 .cse4))) [2022-11-18 21:07:56,493 INFO L899 garLoopResultBuilder]: For program point L9548-1(line 9548) no Hoare annotation was computed. [2022-11-18 21:07:56,493 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-18 21:07:56,493 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-18 21:07:56,493 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-18 21:07:56,494 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-18 21:07:56,494 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-18 21:07:56,494 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-18 21:07:56,499 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:56,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:07:56,513 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:56,514 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:56,522 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:56,522 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:56,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:07:56 BoogieIcfgContainer [2022-11-18 21:07:56,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:07:56,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:07:56,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:07:56,528 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:07:56,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:42" (3/4) ... [2022-11-18 21:07:56,534 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:07:56,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-11-18 21:07:56,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-18 21:07:56,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_cursor_is_valid [2022-11-18 21:07:56,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-11-18 21:07:56,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-18 21:07:56,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-18 21:07:56,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 21:07:56,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-18 21:07:56,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-18 21:07:56,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-18 21:07:56,559 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 127 nodes and edges [2022-11-18 21:07:56,561 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2022-11-18 21:07:56,562 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-18 21:07:56,564 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 21:07:56,565 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-18 21:07:56,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 21:07:56,568 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:07:56,570 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:07:56,622 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && !(str == 0)) && !(str == 0)) && ((((((cursor == 0 && cursor == cursor) && !(#memory_$Pointer$[cursor][8] == 0)) && cursor == cursor) && 2 <= cursor) && 0 < unknown-#StackHeapBarrier-unknown) || (((((cursor == 0 && 0 <= 18446744073709551616 * (-unknown-#memory_int-unknown[cursor][cursor] / 18446744073709551616) + unknown-#memory_int-unknown[cursor][cursor]) && cursor == cursor) && cursor == cursor) && 2 <= cursor) && 0 < unknown-#StackHeapBarrier-unknown))) || (((((cursor == 0 && 0 <= 18446744073709551616 * (-unknown-#memory_int-unknown[cursor][cursor] / 18446744073709551616) + unknown-#memory_int-unknown[cursor][cursor]) && str == 0) && 2 <= cursor) && str == 0) && 0 < unknown-#StackHeapBarrier-unknown)) || (((((((cursor == cursor && cursor == 0) && !(#memory_$Pointer$[cursor][8] == 0)) && cursor == cursor) && str == 0) && 2 <= cursor) && str == 0) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-18 21:07:56,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(0 < unknown-#StackHeapBarrier-unknown) || ((((((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && str == 0) && !(\result == 0)) && !(\old(max_size) == 16)) && \result == 0) [2022-11-18 21:07:57,434 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:07:57,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:07:57,435 INFO L158 Benchmark]: Toolchain (without parser) took 81759.18ms. Allocated memory was 123.7MB in the beginning and 792.7MB in the end (delta: 669.0MB). Free memory was 80.0MB in the beginning and 427.9MB in the end (delta: -348.0MB). Peak memory consumption was 320.6MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,435 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:57,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4240.55ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 79.7MB in the beginning and 73.5MB in the end (delta: 6.3MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 309.12ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 60.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,437 INFO L158 Benchmark]: Boogie Preprocessor took 155.91ms. Allocated memory is still 151.0MB. Free memory was 60.9MB in the beginning and 54.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,437 INFO L158 Benchmark]: RCFGBuilder took 2501.91ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 54.1MB in the beginning and 128.0MB in the end (delta: -73.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,438 INFO L158 Benchmark]: TraceAbstraction took 73633.24ms. Allocated memory was 190.8MB in the beginning and 792.7MB in the end (delta: 601.9MB). Free memory was 128.0MB in the beginning and 559.0MB in the end (delta: -431.0MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,438 INFO L158 Benchmark]: Witness Printer took 906.42ms. Allocated memory is still 792.7MB. Free memory was 559.0MB in the beginning and 427.9MB in the end (delta: 131.1MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2022-11-18 21:07:57,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4240.55ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 79.7MB in the beginning and 73.5MB in the end (delta: 6.3MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 309.12ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 60.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 155.91ms. Allocated memory is still 151.0MB. Free memory was 60.9MB in the beginning and 54.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2501.91ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 54.1MB in the beginning and 128.0MB in the end (delta: -73.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 73633.24ms. Allocated memory was 190.8MB in the beginning and 792.7MB in the end (delta: 601.9MB). Free memory was 128.0MB in the beginning and 559.0MB in the end (delta: -431.0MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. * Witness Printer took 906.42ms. Allocated memory is still 792.7MB. Free memory was 559.0MB in the beginning and 427.9MB in the end (delta: 131.1MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.5s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1375 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1243 mSDsluCounter, 13448 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 484 IncrementalHoareTripleChecker+Unchecked, 10935 mSDsCounter, 396 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5009 IncrementalHoareTripleChecker+Invalid, 5889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 396 mSolverCounterUnsat, 2513 mSDtfsCounter, 5009 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1744 GetRequests, 1429 SyntacticMatches, 20 SemanticMatches, 295 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1482 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=8, InterpolantAutomatonStates: 170, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 173 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 399 PreInvPairs, 436 NumberOfFragments, 1188 HoareAnnotationTreeSize, 399 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 1671 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 7.9s SatisfiabilityAnalysisTime, 43.8s InterpolantComputationTime, 2688 NumberOfCodeBlocks, 2688 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2781 ConstructedInterpolants, 73 QuantifiedInterpolants, 11551 SizeOfPredicates, 85 NumberOfNonLiveVariables, 28160 ConjunctsInSsa, 257 ConjunctsInUnsatCore, 33 InterpolantComputations, 17 PerfectInterpolantSequences, 1487/1647 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9327]: Loop Invariant [2022-11-18 21:07:57,449 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:57,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:57,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:07:57,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((\result == 0 && !(str == 0)) && !(str == 0)) && ((((((cursor == 0 && cursor == cursor) && !(#memory_$Pointer$[cursor][8] == 0)) && cursor == cursor) && 2 <= cursor) && 0 < unknown-#StackHeapBarrier-unknown) || (((((cursor == 0 && 0 <= 18446744073709551616 * (-unknown-#memory_int-unknown[cursor][cursor] / 18446744073709551616) + unknown-#memory_int-unknown[cursor][cursor]) && cursor == cursor) && cursor == cursor) && 2 <= cursor) && 0 < unknown-#StackHeapBarrier-unknown))) || (((((cursor == 0 && 0 <= 18446744073709551616 * (-unknown-#memory_int-unknown[cursor][cursor] / 18446744073709551616) + unknown-#memory_int-unknown[cursor][cursor]) && str == 0) && 2 <= cursor) && str == 0) && 0 < unknown-#StackHeapBarrier-unknown)) || (((((((cursor == cursor && cursor == 0) && !(#memory_$Pointer$[cursor][8] == 0)) && cursor == cursor) && str == 0) && 2 <= cursor) && str == 0) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 9562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: !(0 < unknown-#StackHeapBarrier-unknown) || ((((((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && str == 0) && !(\result == 0)) && !(\old(max_size) == 16)) && \result == 0) RESULT: Ultimate proved your program to be correct! [2022-11-18 21:07:57,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b7cfdb7-eb09-43db-ba80-0ab990bfbb66/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE