./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60926facf5511174d61dcd6a0b7a731efc9ccdb495bc26b58400da4cd6320ca0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:12:17,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:12:17,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:12:17,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:12:17,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:12:17,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:12:17,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:12:17,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:12:17,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:12:17,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:12:17,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:12:17,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:12:17,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:12:17,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:12:17,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:12:17,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:12:17,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:12:17,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:12:17,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:12:17,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:12:17,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:12:17,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:12:17,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:12:17,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:12:17,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:12:17,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:12:17,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:12:17,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:12:17,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:12:17,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:12:17,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:12:17,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:12:17,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:12:17,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:12:17,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:12:17,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:12:17,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:12:17,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:12:17,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:12:17,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:12:17,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:12:17,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:12:17,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:12:17,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:12:17,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:12:17,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:12:17,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:12:17,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:12:17,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:12:17,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:12:17,734 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:12:17,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:12:17,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:12:17,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:12:17,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:12:17,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:12:17,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:12:17,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:12:17,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:12:17,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:12:17,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:12:17,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:12:17,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:12:17,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:17,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:12:17,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:12:17,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:12:17,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:12:17,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:12:17,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:12:17,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:12:17,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:12:17,754 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_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60926facf5511174d61dcd6a0b7a731efc9ccdb495bc26b58400da4cd6320ca0 [2022-11-16 12:12:18,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:12:18,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:12:18,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:12:18,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:12:18,269 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:12:18,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2022-11-16 12:12:18,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/data/4f3722d66/dc69c0ba5bc44751afa597cb969adf63/FLAGe6e478e0a [2022-11-16 12:12:19,524 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:12:19,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2022-11-16 12:12:19,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/data/4f3722d66/dc69c0ba5bc44751afa597cb969adf63/FLAGe6e478e0a [2022-11-16 12:12:19,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/data/4f3722d66/dc69c0ba5bc44751afa597cb969adf63 [2022-11-16 12:12:19,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:12:19,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:12:19,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:19,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:12:19,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:12:19,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:19" (1/1) ... [2022-11-16 12:12:19,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728180fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:19, skipping insertion in model container [2022-11-16 12:12:19,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:19" (1/1) ... [2022-11-16 12:12:19,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:12:19,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:12:20,457 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4505,4518] [2022-11-16 12:12:20,467 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4565,4578] [2022-11-16 12:12:21,610 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,611 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,612 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,614 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,616 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,634 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,635 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,638 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:21,641 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:12:22,223 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:12:22,225 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:12:22,226 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:12:22,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:12:22,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:12:22,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:12:22,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:12:22,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:12:22,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:12:22,450 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:12:22,648 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,649 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:22,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:12:22,833 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4505,4518] [2022-11-16 12:12:22,834 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4565,4578] [2022-11-16 12:12:22,886 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,888 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,891 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,893 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,894 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,917 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,918 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,924 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:22,928 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:23,007 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:12:23,008 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:12:23,010 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:12:23,014 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:12:23,016 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:12:23,017 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:12:23,019 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:12:23,019 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:12:23,020 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:12:23,021 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:12:23,075 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:12:23,184 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:23,184 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:12:23,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:23,633 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:12:23,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23 WrapperNode [2022-11-16 12:12:23,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:23,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:23,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:12:23,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:12:23,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:23,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:23,902 INFO L138 Inliner]: procedures = 691, calls = 2656, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 921 [2022-11-16 12:12:23,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:23,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:12:23,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:12:23,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:12:23,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:23,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:23,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:23,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:12:24,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:12:24,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:12:24,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:12:24,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (1/1) ... [2022-11-16 12:12:24,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:24,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:24,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:12:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:12:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-16 12:12:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-16 12:12:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2022-11-16 12:12:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2022-11-16 12:12:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 12:12:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:12:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:12:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:12:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:12:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-11-16 12:12:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-11-16 12:12:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:12:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:12:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:12:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:12:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-16 12:12:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-16 12:12:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:12:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:12:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:12:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:12:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:12:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 12:12:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 12:12:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:12:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:12:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:12:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:12:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:12:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 12:12:24,179 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 12:12:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:12:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-16 12:12:24,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-16 12:12:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:12:24,634 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:12:24,637 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:12:26,664 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:12:26,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:12:26,677 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:12:26,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:26 BoogieIcfgContainer [2022-11-16 12:12:26,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:12:26,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:12:26,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:12:26,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:12:26,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:12:19" (1/3) ... [2022-11-16 12:12:26,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577cf2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:26, skipping insertion in model container [2022-11-16 12:12:26,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:23" (2/3) ... [2022-11-16 12:12:26,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577cf2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:26, skipping insertion in model container [2022-11-16 12:12:26,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:26" (3/3) ... [2022-11-16 12:12:26,697 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness.i [2022-11-16 12:12:26,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:12:26,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:12:26,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:12:26,840 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;@f49b4f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:12:26,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:12:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-16 12:12:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 12:12:26,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:26,878 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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] [2022-11-16 12:12:26,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1837511076, now seen corresponding path program 1 times [2022-11-16 12:12:26,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:26,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166534627] [2022-11-16 12:12:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:26,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:12:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:12:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:27,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:12:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 12:12:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:12:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:12:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:12:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:12:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:12:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:12:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:12:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:12:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:12:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:12:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-16 12:12:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:28,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166534627] [2022-11-16 12:12:28,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166534627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:28,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:28,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:12:28,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186549197] [2022-11-16 12:12:28,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:28,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:12:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:12:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:12:28,342 INFO L87 Difference]: Start difference. First operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:12:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:29,304 INFO L93 Difference]: Finished difference Result 297 states and 435 transitions. [2022-11-16 12:12:29,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:12:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2022-11-16 12:12:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:29,323 INFO L225 Difference]: With dead ends: 297 [2022-11-16 12:12:29,323 INFO L226 Difference]: Without dead ends: 146 [2022-11-16 12:12:29,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:12:29,334 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 77 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:29,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 168 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:12:29,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-16 12:12:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2022-11-16 12:12:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-16 12:12:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 193 transitions. [2022-11-16 12:12:29,411 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 193 transitions. Word has length 120 [2022-11-16 12:12:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:29,413 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 193 transitions. [2022-11-16 12:12:29,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:12:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 193 transitions. [2022-11-16 12:12:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 12:12:29,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:29,419 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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] [2022-11-16 12:12:29,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:12:29,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:29,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1917331222, now seen corresponding path program 1 times [2022-11-16 12:12:29,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:29,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685714606] [2022-11-16 12:12:29,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:12:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:12:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:12:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 12:12:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:12:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:12:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:12:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:12:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:12:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:12:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:12:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:12:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:12:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:12:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-16 12:12:30,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685714606] [2022-11-16 12:12:30,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685714606] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:30,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335035310] [2022-11-16 12:12:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:30,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:30,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:30,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:12:30,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:12:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:31,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:12:31,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-16 12:12:31,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:12:31,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335035310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:31,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:12:31,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-16 12:12:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466067407] [2022-11-16 12:12:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:31,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:12:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:12:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:32,001 INFO L87 Difference]: Start difference. First operand 143 states and 193 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 12:12:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:32,410 INFO L93 Difference]: Finished difference Result 282 states and 385 transitions. [2022-11-16 12:12:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:12:32,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 120 [2022-11-16 12:12:32,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:32,421 INFO L225 Difference]: With dead ends: 282 [2022-11-16 12:12:32,421 INFO L226 Difference]: Without dead ends: 146 [2022-11-16 12:12:32,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:12:32,430 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 211 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:32,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 400 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:12:32,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-16 12:12:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-16 12:12:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2022-11-16 12:12:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2022-11-16 12:12:32,486 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 120 [2022-11-16 12:12:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:32,489 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2022-11-16 12:12:32,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 12:12:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2022-11-16 12:12:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-16 12:12:32,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:32,506 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:32,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:12:32,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:32,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1681549893, now seen corresponding path program 1 times [2022-11-16 12:12:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:32,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075701198] [2022-11-16 12:12:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:32,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:12:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:12:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:12:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:12:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:12:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:12:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:12:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:12:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:12:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:12:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:12:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:12:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:12:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:12:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-16 12:12:34,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075701198] [2022-11-16 12:12:34,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075701198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:34,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870221225] [2022-11-16 12:12:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:34,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:34,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:34,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:12:34,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:12:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:35,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:12:35,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-16 12:12:35,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:12:35,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870221225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:35,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:12:35,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-11-16 12:12:35,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794194230] [2022-11-16 12:12:35,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:35,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:12:35,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:12:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:12:35,277 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-16 12:12:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:35,938 INFO L93 Difference]: Finished difference Result 238 states and 331 transitions. [2022-11-16 12:12:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:12:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 122 [2022-11-16 12:12:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:35,941 INFO L225 Difference]: With dead ends: 238 [2022-11-16 12:12:35,942 INFO L226 Difference]: Without dead ends: 146 [2022-11-16 12:12:35,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:35,944 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 224 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 586 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:12:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-16 12:12:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-16 12:12:35,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2022-11-16 12:12:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2022-11-16 12:12:35,968 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 122 [2022-11-16 12:12:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:35,969 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2022-11-16 12:12:35,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-16 12:12:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2022-11-16 12:12:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-16 12:12:35,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:35,972 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:35,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:12:36,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:36,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:36,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1013982917, now seen corresponding path program 2 times [2022-11-16 12:12:36,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:36,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889025960] [2022-11-16 12:12:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:36,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:12:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:12:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:12:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:12:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:12:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:12:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:12:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:12:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:12:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:12:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:12:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:12:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:12:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:12:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-16 12:12:37,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889025960] [2022-11-16 12:12:37,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889025960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537935649] [2022-11-16 12:12:37,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:12:37,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:37,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:37,447 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:12:37,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:12:38,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:12:38,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:12:38,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:12:38,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-16 12:12:38,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:12:38,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537935649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:38,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:12:38,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-11-16 12:12:38,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199435022] [2022-11-16 12:12:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:38,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:12:38,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:38,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:12:38,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:12:38,315 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:12:38,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:38,462 INFO L93 Difference]: Finished difference Result 158 states and 218 transitions. [2022-11-16 12:12:38,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:12:38,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2022-11-16 12:12:38,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:38,466 INFO L225 Difference]: With dead ends: 158 [2022-11-16 12:12:38,467 INFO L226 Difference]: Without dead ends: 156 [2022-11-16 12:12:38,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:12:38,473 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 17 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:38,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1320 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-16 12:12:38,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2022-11-16 12:12:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 93 states have (on average 1.1827956989247312) internal successors, (110), 96 states have internal predecessors, (110), 47 states have call successors, (47), 12 states have call predecessors, (47), 14 states have return successors, (58), 46 states have call predecessors, (58), 46 states have call successors, (58) [2022-11-16 12:12:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2022-11-16 12:12:38,509 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 126 [2022-11-16 12:12:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:38,511 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2022-11-16 12:12:38,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:12:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2022-11-16 12:12:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-16 12:12:38,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:38,514 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:38,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 12:12:38,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:38,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:38,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:38,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1840062733, now seen corresponding path program 1 times [2022-11-16 12:12:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:38,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105934079] [2022-11-16 12:12:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:12:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:12:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:12:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:12:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:12:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:12:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:12:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:12:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:12:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:12:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:12:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:12:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:12:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:12:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-16 12:12:39,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105934079] [2022-11-16 12:12:39,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105934079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394577347] [2022-11-16 12:12:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:39,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:39,928 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:12:39,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:12:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:40,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:12:40,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-16 12:12:40,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:12:40,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394577347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:40,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:12:40,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-11-16 12:12:40,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283379417] [2022-11-16 12:12:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:40,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:12:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:12:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:12:40,951 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-16 12:12:41,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:41,556 INFO L93 Difference]: Finished difference Result 301 states and 428 transitions. [2022-11-16 12:12:41,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:12:41,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 130 [2022-11-16 12:12:41,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:41,565 INFO L225 Difference]: With dead ends: 301 [2022-11-16 12:12:41,566 INFO L226 Difference]: Without dead ends: 183 [2022-11-16 12:12:41,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:41,567 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 265 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:41,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 670 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:12:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-16 12:12:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-16 12:12:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 110 states have internal predecessors, (127), 60 states have call successors, (60), 13 states have call predecessors, (60), 15 states have return successors, (73), 59 states have call predecessors, (73), 59 states have call successors, (73) [2022-11-16 12:12:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 260 transitions. [2022-11-16 12:12:41,594 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 260 transitions. Word has length 130 [2022-11-16 12:12:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:41,594 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 260 transitions. [2022-11-16 12:12:41,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-16 12:12:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 260 transitions. [2022-11-16 12:12:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-16 12:12:41,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:41,597 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:41,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:12:41,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:41,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:41,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:41,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1072376014, now seen corresponding path program 1 times [2022-11-16 12:12:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:41,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93636790] [2022-11-16 12:12:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:41,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:12:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:12:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:12:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:12:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:12:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:12:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:12:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:12:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:12:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:12:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:12:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:12:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:12:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:12:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:12:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:12:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-16 12:12:48,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:48,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93636790] [2022-11-16 12:12:48,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93636790] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:48,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300408545] [2022-11-16 12:12:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:48,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:12:48,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:48,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:12:48,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:12:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:48,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-16 12:12:48,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:48,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:12:50,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2022-11-16 12:12:53,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2022-11-16 12:12:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 138 proven. 12 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-16 12:12:53,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:12:59,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300408545] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:12:59,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:12:59,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 30 [2022-11-16 12:12:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260415355] [2022-11-16 12:12:59,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:12:59,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 12:12:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:59,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 12:12:59,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=889, Unknown=1, NotChecked=0, Total=992 [2022-11-16 12:12:59,168 INFO L87 Difference]: Start difference. First operand 183 states and 260 transitions. Second operand has 30 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 14 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-16 12:13:17,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:17,803 INFO L93 Difference]: Finished difference Result 548 states and 827 transitions. [2022-11-16 12:13:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 12:13:17,807 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 14 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37) Word has length 132 [2022-11-16 12:13:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:17,812 INFO L225 Difference]: With dead ends: 548 [2022-11-16 12:13:17,812 INFO L226 Difference]: Without dead ends: 415 [2022-11-16 12:13:17,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 230 SyntacticMatches, 19 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=388, Invalid=3637, Unknown=7, NotChecked=0, Total=4032 [2022-11-16 12:13:17,816 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 479 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 5061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 936 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:17,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1674 Invalid, 5061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 3749 Invalid, 0 Unknown, 936 Unchecked, 6.2s Time] [2022-11-16 12:13:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-16 12:13:17,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 323. [2022-11-16 12:13:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 190 states have (on average 1.168421052631579) internal successors, (222), 195 states have internal predecessors, (222), 109 states have call successors, (109), 20 states have call predecessors, (109), 23 states have return successors, (138), 107 states have call predecessors, (138), 108 states have call successors, (138) [2022-11-16 12:13:17,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 469 transitions. [2022-11-16 12:13:17,896 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 469 transitions. Word has length 132 [2022-11-16 12:13:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:17,897 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 469 transitions. [2022-11-16 12:13:17,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 14 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-16 12:13:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 469 transitions. [2022-11-16 12:13:17,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-16 12:13:17,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:17,902 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:17,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:18,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:18,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1049743760, now seen corresponding path program 1 times [2022-11-16 12:13:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:18,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35354752] [2022-11-16 12:13:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:13:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:13:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:13:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:13:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:13:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:13:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:13:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:13:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:13:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:13:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:13:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:13:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:13:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:13:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:13:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:13:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:13:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-16 12:13:24,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35354752] [2022-11-16 12:13:24,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35354752] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:13:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799782407] [2022-11-16 12:13:24,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:24,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:13:24,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:13:24,317 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:13:24,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:13:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:24,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 2729 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-16 12:13:25,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:13:25,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:13:26,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2022-11-16 12:13:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 100 proven. 16 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-16 12:13:30,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:13:38,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799782407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:13:38,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:13:38,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 35 [2022-11-16 12:13:38,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495235686] [2022-11-16 12:13:38,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:13:38,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-16 12:13:38,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-16 12:13:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1341, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 12:13:38,702 INFO L87 Difference]: Start difference. First operand 323 states and 469 transitions. Second operand has 35 states, 32 states have (on average 3.28125) internal successors, (105), 31 states have internal predecessors, (105), 14 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (37), 11 states have call predecessors, (37), 12 states have call successors, (37) [2022-11-16 12:13:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:56,731 INFO L93 Difference]: Finished difference Result 647 states and 934 transitions. [2022-11-16 12:13:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-16 12:13:56,733 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 3.28125) internal successors, (105), 31 states have internal predecessors, (105), 14 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (37), 11 states have call predecessors, (37), 12 states have call successors, (37) Word has length 132 [2022-11-16 12:13:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:56,749 INFO L225 Difference]: With dead ends: 647 [2022-11-16 12:13:56,749 INFO L226 Difference]: Without dead ends: 508 [2022-11-16 12:13:56,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 223 SyntacticMatches, 24 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=471, Invalid=4635, Unknown=6, NotChecked=0, Total=5112 [2022-11-16 12:13:56,755 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 549 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 5608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1175 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:56,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1691 Invalid, 5608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [386 Valid, 4047 Invalid, 0 Unknown, 1175 Unchecked, 6.5s Time] [2022-11-16 12:13:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-16 12:13:56,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 394. [2022-11-16 12:13:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 242 states have (on average 1.1611570247933884) internal successors, (281), 248 states have internal predecessors, (281), 121 states have call successors, (121), 26 states have call predecessors, (121), 30 states have return successors, (157), 119 states have call predecessors, (157), 120 states have call successors, (157) [2022-11-16 12:13:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 559 transitions. [2022-11-16 12:13:56,857 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 559 transitions. Word has length 132 [2022-11-16 12:13:56,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:56,858 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 559 transitions. [2022-11-16 12:13:56,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 3.28125) internal successors, (105), 31 states have internal predecessors, (105), 14 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (37), 11 states have call predecessors, (37), 12 states have call successors, (37) [2022-11-16 12:13:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 559 transitions. [2022-11-16 12:13:56,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-16 12:13:56,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:56,862 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:56,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:13:57,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 12:13:57,082 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:57,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:57,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1699771339, now seen corresponding path program 1 times [2022-11-16 12:13:57,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:57,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514628388] [2022-11-16 12:13:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:13:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:13:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:13:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:13:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:13:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:13:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:13:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:13:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:13:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:13:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:13:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:13:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:13:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:13:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:13:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:13:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:13:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-16 12:13:58,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:58,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514628388] [2022-11-16 12:13:58,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514628388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:58,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:58,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:13:58,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369727147] [2022-11-16 12:13:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:58,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:13:58,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:58,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:13:58,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:13:58,974 INFO L87 Difference]: Start difference. First operand 394 states and 559 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:14:00,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:00,798 INFO L93 Difference]: Finished difference Result 425 states and 610 transitions. [2022-11-16 12:14:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:14:00,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2022-11-16 12:14:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:00,803 INFO L225 Difference]: With dead ends: 425 [2022-11-16 12:14:00,803 INFO L226 Difference]: Without dead ends: 423 [2022-11-16 12:14:00,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:14:00,805 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 175 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:00,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 713 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:14:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-16 12:14:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 413. [2022-11-16 12:14:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 255 states have (on average 1.1529411764705881) internal successors, (294), 263 states have internal predecessors, (294), 124 states have call successors, (124), 27 states have call predecessors, (124), 33 states have return successors, (179), 122 states have call predecessors, (179), 123 states have call successors, (179) [2022-11-16 12:14:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 597 transitions. [2022-11-16 12:14:00,899 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 597 transitions. Word has length 134 [2022-11-16 12:14:00,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:00,900 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 597 transitions. [2022-11-16 12:14:00,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:14:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 597 transitions. [2022-11-16 12:14:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-16 12:14:00,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:00,907 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:00,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:14:00,908 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash -998706761, now seen corresponding path program 1 times [2022-11-16 12:14:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:00,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772457211] [2022-11-16 12:14:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:00,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:14:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:14:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:14:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:14:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:14:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:14:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:14:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:14:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:14:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:14:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-16 12:14:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:02,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772457211] [2022-11-16 12:14:02,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772457211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:02,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:02,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:14:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479713068] [2022-11-16 12:14:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:02,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:14:02,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:14:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:14:02,867 INFO L87 Difference]: Start difference. First operand 413 states and 597 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:14:04,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:04,737 INFO L93 Difference]: Finished difference Result 429 states and 630 transitions. [2022-11-16 12:14:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:14:04,739 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2022-11-16 12:14:04,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:04,742 INFO L225 Difference]: With dead ends: 429 [2022-11-16 12:14:04,743 INFO L226 Difference]: Without dead ends: 427 [2022-11-16 12:14:04,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-11-16 12:14:04,744 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 188 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:04,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 903 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:14:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-11-16 12:14:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 405. [2022-11-16 12:14:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 249 states have (on average 1.1566265060240963) internal successors, (288), 256 states have internal predecessors, (288), 123 states have call successors, (123), 27 states have call predecessors, (123), 32 states have return successors, (176), 121 states have call predecessors, (176), 122 states have call successors, (176) [2022-11-16 12:14:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 587 transitions. [2022-11-16 12:14:04,801 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 587 transitions. Word has length 134 [2022-11-16 12:14:04,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:04,802 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 587 transitions. [2022-11-16 12:14:04,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:14:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 587 transitions. [2022-11-16 12:14:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-16 12:14:04,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:04,805 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:04,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:14:04,806 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:04,806 INFO L85 PathProgramCache]: Analyzing trace with hash 836028555, now seen corresponding path program 1 times [2022-11-16 12:14:04,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:04,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621417891] [2022-11-16 12:14:04,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:04,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:14:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:14:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:14:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:14:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:14:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:14:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:14:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:14:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:14:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:14:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:14:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-16 12:14:10,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:10,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621417891] [2022-11-16 12:14:10,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621417891] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:10,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188780032] [2022-11-16 12:14:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:10,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:10,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:10,255 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:14:10,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:14:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:10,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-16 12:14:10,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:14:11,586 INFO L321 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2022-11-16 12:14:11,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 39 [2022-11-16 12:14:11,769 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:14:11,770 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 34 treesize of output 18 [2022-11-16 12:14:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 12 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-16 12:14:11,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:14:12,498 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 [2022-11-16 12:14:12,626 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-16 12:14:12,626 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 20 treesize of output 19 [2022-11-16 12:14:12,657 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-11-16 12:14:12,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188780032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:14:12,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:14:12,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 11] total 37 [2022-11-16 12:14:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557776045] [2022-11-16 12:14:12,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:14:12,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-16 12:14:12,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:12,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-16 12:14:12,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 12:14:12,660 INFO L87 Difference]: Start difference. First operand 405 states and 587 transitions. Second operand has 37 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 33 states have internal predecessors, (120), 15 states have call successors, (52), 8 states have call predecessors, (52), 11 states have return successors, (49), 12 states have call predecessors, (49), 15 states have call successors, (49) [2022-11-16 12:14:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:22,033 INFO L93 Difference]: Finished difference Result 858 states and 1291 transitions. [2022-11-16 12:14:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 12:14:22,035 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 33 states have internal predecessors, (120), 15 states have call successors, (52), 8 states have call predecessors, (52), 11 states have return successors, (49), 12 states have call predecessors, (49), 15 states have call successors, (49) Word has length 143 [2022-11-16 12:14:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:22,040 INFO L225 Difference]: With dead ends: 858 [2022-11-16 12:14:22,040 INFO L226 Difference]: Without dead ends: 625 [2022-11-16 12:14:22,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 305 SyntacticMatches, 9 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=425, Invalid=4405, Unknown=0, NotChecked=0, Total=4830 [2022-11-16 12:14:22,044 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 357 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 6844 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 8151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 6844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 918 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:22,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1369 Invalid, 8151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 6844 Invalid, 0 Unknown, 918 Unchecked, 7.0s Time] [2022-11-16 12:14:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-11-16 12:14:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 503. [2022-11-16 12:14:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 302 states have (on average 1.1622516556291391) internal successors, (351), 309 states have internal predecessors, (351), 164 states have call successors, (164), 31 states have call predecessors, (164), 36 states have return successors, (233), 162 states have call predecessors, (233), 163 states have call successors, (233) [2022-11-16 12:14:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 748 transitions. [2022-11-16 12:14:22,115 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 748 transitions. Word has length 143 [2022-11-16 12:14:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:22,116 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 748 transitions. [2022-11-16 12:14:22,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 33 states have internal predecessors, (120), 15 states have call successors, (52), 8 states have call predecessors, (52), 11 states have return successors, (49), 12 states have call predecessors, (49), 15 states have call successors, (49) [2022-11-16 12:14:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 748 transitions. [2022-11-16 12:14:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-16 12:14:22,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:22,120 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:22,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:14:22,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:14:22,334 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:22,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:22,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1639095725, now seen corresponding path program 1 times [2022-11-16 12:14:22,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:22,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252261897] [2022-11-16 12:14:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:14:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:14:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:14:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:14:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:14:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:14:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:14:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:14:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:14:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:14:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:14:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:14:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 12:14:23,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:23,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252261897] [2022-11-16 12:14:23,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252261897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:23,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:23,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:14:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130015447] [2022-11-16 12:14:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:23,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:14:23,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:23,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:14:23,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:14:23,295 INFO L87 Difference]: Start difference. First operand 503 states and 748 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-16 12:14:24,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:24,333 INFO L93 Difference]: Finished difference Result 523 states and 774 transitions. [2022-11-16 12:14:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:14:24,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 142 [2022-11-16 12:14:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:24,338 INFO L225 Difference]: With dead ends: 523 [2022-11-16 12:14:24,338 INFO L226 Difference]: Without dead ends: 521 [2022-11-16 12:14:24,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:14:24,339 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 96 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:24,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 579 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:14:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-11-16 12:14:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 514. [2022-11-16 12:14:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 305 states have (on average 1.160655737704918) internal successors, (354), 312 states have internal predecessors, (354), 171 states have call successors, (171), 32 states have call predecessors, (171), 37 states have return successors, (240), 169 states have call predecessors, (240), 170 states have call successors, (240) [2022-11-16 12:14:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 765 transitions. [2022-11-16 12:14:24,408 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 765 transitions. Word has length 142 [2022-11-16 12:14:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:24,409 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 765 transitions. [2022-11-16 12:14:24,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-16 12:14:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 765 transitions. [2022-11-16 12:14:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-16 12:14:24,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:24,413 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:24,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:14:24,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:24,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash 910801463, now seen corresponding path program 2 times [2022-11-16 12:14:24,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:24,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835694456] [2022-11-16 12:14:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:24,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:14:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:14:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:14:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:14:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:14:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:14:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:14:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:14:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:14:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:14:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:14:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-11-16 12:14:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835694456] [2022-11-16 12:14:25,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835694456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105193116] [2022-11-16 12:14:25,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:14:25,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:25,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:25,687 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:14:25,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:14:26,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:14:26,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:14:26,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-16 12:14:26,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:14:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-16 12:14:26,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:14:26,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105193116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:26,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:14:26,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2022-11-16 12:14:26,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875807928] [2022-11-16 12:14:26,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:26,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:14:26,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:14:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:14:26,833 INFO L87 Difference]: Start difference. First operand 514 states and 765 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-16 12:14:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:27,263 INFO L93 Difference]: Finished difference Result 751 states and 1116 transitions. [2022-11-16 12:14:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:14:27,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 143 [2022-11-16 12:14:27,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:27,269 INFO L225 Difference]: With dead ends: 751 [2022-11-16 12:14:27,269 INFO L226 Difference]: Without dead ends: 493 [2022-11-16 12:14:27,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:14:27,272 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 13 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:27,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1400 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:14:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-11-16 12:14:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2022-11-16 12:14:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 288 states have (on average 1.15625) internal successors, (333), 294 states have internal predecessors, (333), 169 states have call successors, (169), 31 states have call predecessors, (169), 35 states have return successors, (233), 167 states have call predecessors, (233), 168 states have call successors, (233) [2022-11-16 12:14:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 735 transitions. [2022-11-16 12:14:27,356 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 735 transitions. Word has length 143 [2022-11-16 12:14:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:27,357 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 735 transitions. [2022-11-16 12:14:27,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-16 12:14:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 735 transitions. [2022-11-16 12:14:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 12:14:27,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:27,362 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2022-11-16 12:14:27,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:14:27,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:27,577 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash 743277884, now seen corresponding path program 1 times [2022-11-16 12:14:27,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:27,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082040852] [2022-11-16 12:14:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:27,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:14:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:33,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:14:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:14:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:14:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:14:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:14:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:14:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:14:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:14:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:14:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:14:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-11-16 12:14:34,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:34,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082040852] [2022-11-16 12:14:34,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082040852] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:34,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101106325] [2022-11-16 12:14:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:34,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:34,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:14:34,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:14:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:35,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:14:35,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:14:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-16 12:14:35,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:14:35,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101106325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:35,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:14:35,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 24 [2022-11-16 12:14:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90573912] [2022-11-16 12:14:35,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:35,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:14:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:14:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:14:35,367 INFO L87 Difference]: Start difference. First operand 493 states and 735 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:14:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:35,836 INFO L93 Difference]: Finished difference Result 889 states and 1365 transitions. [2022-11-16 12:14:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:14:35,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2022-11-16 12:14:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:35,843 INFO L225 Difference]: With dead ends: 889 [2022-11-16 12:14:35,843 INFO L226 Difference]: Without dead ends: 493 [2022-11-16 12:14:35,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:14:35,848 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 19 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:35,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 682 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2022-11-16 12:14:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-11-16 12:14:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2022-11-16 12:14:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 288 states have (on average 1.1493055555555556) internal successors, (331), 294 states have internal predecessors, (331), 169 states have call successors, (169), 31 states have call predecessors, (169), 35 states have return successors, (233), 167 states have call predecessors, (233), 168 states have call successors, (233) [2022-11-16 12:14:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 733 transitions. [2022-11-16 12:14:35,933 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 733 transitions. Word has length 145 [2022-11-16 12:14:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:35,934 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 733 transitions. [2022-11-16 12:14:35,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:14:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 733 transitions. [2022-11-16 12:14:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 12:14:35,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:35,939 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2022-11-16 12:14:35,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:14:36,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:14:36,155 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 250651710, now seen corresponding path program 1 times [2022-11-16 12:14:36,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:36,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502405641] [2022-11-16 12:14:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:14:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:14:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:14:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:14:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:14:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:14:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:14:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:14:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:14:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:14:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:14:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-16 12:14:41,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:41,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502405641] [2022-11-16 12:14:41,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502405641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:41,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742897306] [2022-11-16 12:14:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:41,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:41,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:41,591 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:14:41,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 12:14:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:42,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2798 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-16 12:14:42,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:14:42,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:14:42,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 12:14:42,982 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 17 treesize of output 9 [2022-11-16 12:14:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 132 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-16 12:14:43,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:14:43,388 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1088 (Array Int Int))) (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base| v_ArrVal_1088) |c_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base|) |c_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset|) 18446744073709551616) 0)) is different from false [2022-11-16 12:14:43,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742897306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:43,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:14:43,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12] total 32 [2022-11-16 12:14:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792067619] [2022-11-16 12:14:43,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:14:43,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-16 12:14:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-16 12:14:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1038, Unknown=1, NotChecked=64, Total=1190 [2022-11-16 12:14:43,403 INFO L87 Difference]: Start difference. First operand 493 states and 733 transitions. Second operand has 32 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 13 states have call successors, (43), 6 states have call predecessors, (43), 9 states have return successors, (40), 10 states have call predecessors, (40), 12 states have call successors, (40) [2022-11-16 12:14:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:55,101 INFO L93 Difference]: Finished difference Result 1025 states and 1574 transitions. [2022-11-16 12:14:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-16 12:14:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 13 states have call successors, (43), 6 states have call predecessors, (43), 9 states have return successors, (40), 10 states have call predecessors, (40), 12 states have call successors, (40) Word has length 145 [2022-11-16 12:14:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:55,107 INFO L225 Difference]: With dead ends: 1025 [2022-11-16 12:14:55,107 INFO L226 Difference]: Without dead ends: 782 [2022-11-16 12:14:55,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 269 SyntacticMatches, 7 SemanticMatches, 66 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=426, Invalid=3995, Unknown=5, NotChecked=130, Total=4556 [2022-11-16 12:14:55,111 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 717 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 7652 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 8800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 7652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 356 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:55,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1301 Invalid, 8800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 7652 Invalid, 0 Unknown, 356 Unchecked, 9.1s Time] [2022-11-16 12:14:55,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-11-16 12:14:55,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 599. [2022-11-16 12:14:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 346 states have (on average 1.153179190751445) internal successors, (399), 351 states have internal predecessors, (399), 214 states have call successors, (214), 35 states have call predecessors, (214), 38 states have return successors, (286), 212 states have call predecessors, (286), 213 states have call successors, (286) [2022-11-16 12:14:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 899 transitions. [2022-11-16 12:14:55,207 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 899 transitions. Word has length 145 [2022-11-16 12:14:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:55,208 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 899 transitions. [2022-11-16 12:14:55,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 13 states have call successors, (43), 6 states have call predecessors, (43), 9 states have return successors, (40), 10 states have call predecessors, (40), 12 states have call successors, (40) [2022-11-16 12:14:55,208 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 899 transitions. [2022-11-16 12:14:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-16 12:14:55,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:55,212 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 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] [2022-11-16 12:14:55,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:14:55,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:55,427 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash -269900389, now seen corresponding path program 1 times [2022-11-16 12:14:55,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:55,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56609881] [2022-11-16 12:14:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:55,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:14:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:14:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:14:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:14:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:14:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:14:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:14:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:14:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:14:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:14:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:14:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:14:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:14:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:14:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:14:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:14:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:14:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-16 12:14:58,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:58,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56609881] [2022-11-16 12:14:58,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56609881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:14:58,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265342057] [2022-11-16 12:14:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:58,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:14:58,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:14:58,203 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:14:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 12:14:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:58,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2761 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-16 12:14:58,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:14:59,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:14:59,507 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 12:14:59,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-16 12:15:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-16 12:15:01,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:15:02,816 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 [2022-11-16 12:15:02,925 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-16 12:15:02,926 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 20 treesize of output 19 [2022-11-16 12:15:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-11-16 12:15:02,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265342057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:15:02,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:15:02,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16, 13] total 38 [2022-11-16 12:15:02,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603510835] [2022-11-16 12:15:02,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:15:02,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 12:15:02,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:02,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 12:15:02,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 12:15:02,968 INFO L87 Difference]: Start difference. First operand 599 states and 899 transitions. Second operand has 38 states, 35 states have (on average 3.6) internal successors, (126), 34 states have internal predecessors, (126), 14 states have call successors, (50), 9 states have call predecessors, (50), 10 states have return successors, (47), 11 states have call predecessors, (47), 13 states have call successors, (47) [2022-11-16 12:15:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:10,994 INFO L93 Difference]: Finished difference Result 1343 states and 2082 transitions. [2022-11-16 12:15:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-16 12:15:10,995 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 3.6) internal successors, (126), 34 states have internal predecessors, (126), 14 states have call successors, (50), 9 states have call predecessors, (50), 10 states have return successors, (47), 11 states have call predecessors, (47), 13 states have call successors, (47) Word has length 146 [2022-11-16 12:15:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:11,007 INFO L225 Difference]: With dead ends: 1343 [2022-11-16 12:15:11,007 INFO L226 Difference]: Without dead ends: 1030 [2022-11-16 12:15:11,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 291 SyntacticMatches, 32 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1671 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=615, Invalid=5391, Unknown=0, NotChecked=0, Total=6006 [2022-11-16 12:15:11,017 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 502 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 4871 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 5799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 545 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:11,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1062 Invalid, 5799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 4871 Invalid, 0 Unknown, 545 Unchecked, 5.3s Time] [2022-11-16 12:15:11,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-16 12:15:11,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 913. [2022-11-16 12:15:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 524 states have (on average 1.1354961832061068) internal successors, (595), 529 states have internal predecessors, (595), 340 states have call successors, (340), 46 states have call predecessors, (340), 48 states have return successors, (439), 337 states have call predecessors, (439), 339 states have call successors, (439) [2022-11-16 12:15:11,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1374 transitions. [2022-11-16 12:15:11,174 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1374 transitions. Word has length 146 [2022-11-16 12:15:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:11,212 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1374 transitions. [2022-11-16 12:15:11,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 3.6) internal successors, (126), 34 states have internal predecessors, (126), 14 states have call successors, (50), 9 states have call predecessors, (50), 10 states have return successors, (47), 11 states have call predecessors, (47), 13 states have call successors, (47) [2022-11-16 12:15:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1374 transitions. [2022-11-16 12:15:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:15:11,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:11,219 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 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] [2022-11-16 12:15:11,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:11,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:15:11,431 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:11,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:11,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1600227840, now seen corresponding path program 1 times [2022-11-16 12:15:11,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:11,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89820273] [2022-11-16 12:15:11,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:11,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:15:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:15:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:15:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:15:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:15:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:15:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:15:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:15:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:15:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 12:15:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:15:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 12:15:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 12:15:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:15:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:15:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:15:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:15:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:15:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 12:15:11,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:11,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89820273] [2022-11-16 12:15:11,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89820273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:11,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:11,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:11,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035285845] [2022-11-16 12:15:11,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:11,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:15:11,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:11,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:15:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:15:11,977 INFO L87 Difference]: Start difference. First operand 913 states and 1374 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-16 12:15:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:12,734 INFO L93 Difference]: Finished difference Result 1376 states and 2072 transitions. [2022-11-16 12:15:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:15:12,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 153 [2022-11-16 12:15:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:12,742 INFO L225 Difference]: With dead ends: 1376 [2022-11-16 12:15:12,742 INFO L226 Difference]: Without dead ends: 947 [2022-11-16 12:15:12,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:12,746 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 138 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:12,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 261 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:15:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-11-16 12:15:12,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 939. [2022-11-16 12:15:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 544 states have (on average 1.130514705882353) internal successors, (615), 548 states have internal predecessors, (615), 340 states have call successors, (340), 46 states have call predecessors, (340), 54 states have return successors, (450), 344 states have call predecessors, (450), 339 states have call successors, (450) [2022-11-16 12:15:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1405 transitions. [2022-11-16 12:15:12,887 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1405 transitions. Word has length 153 [2022-11-16 12:15:12,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:12,888 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1405 transitions. [2022-11-16 12:15:12,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-16 12:15:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1405 transitions. [2022-11-16 12:15:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-16 12:15:12,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:12,892 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 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] [2022-11-16 12:15:12,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:15:12,893 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:12,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash -987754675, now seen corresponding path program 1 times [2022-11-16 12:15:12,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:12,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349918910] [2022-11-16 12:15:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:12,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:15:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:15:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:15:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:15:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:15:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:15:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:15:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:15:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:15:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 12:15:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:15:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 12:15:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 12:15:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:15:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:15:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:15:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:15:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:15:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-16 12:15:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:15,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349918910] [2022-11-16 12:15:15,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349918910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:15,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:15,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:15:15,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811692793] [2022-11-16 12:15:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:15,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:15:15,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:15:15,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:15:15,270 INFO L87 Difference]: Start difference. First operand 939 states and 1405 transitions. Second operand has 13 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-16 12:15:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:16,828 INFO L93 Difference]: Finished difference Result 963 states and 1437 transitions. [2022-11-16 12:15:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:15:16,829 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) Word has length 154 [2022-11-16 12:15:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:16,835 INFO L225 Difference]: With dead ends: 963 [2022-11-16 12:15:16,835 INFO L226 Difference]: Without dead ends: 961 [2022-11-16 12:15:16,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:15:16,838 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 277 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:16,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 367 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:15:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-11-16 12:15:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 943. [2022-11-16 12:15:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 547 states have (on average 1.129798903107861) internal successors, (618), 551 states have internal predecessors, (618), 340 states have call successors, (340), 47 states have call predecessors, (340), 55 states have return successors, (450), 344 states have call predecessors, (450), 339 states have call successors, (450) [2022-11-16 12:15:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1408 transitions. [2022-11-16 12:15:17,012 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1408 transitions. Word has length 154 [2022-11-16 12:15:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:17,012 INFO L495 AbstractCegarLoop]: Abstraction has 943 states and 1408 transitions. [2022-11-16 12:15:17,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-16 12:15:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1408 transitions. [2022-11-16 12:15:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-16 12:15:17,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:17,017 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:17,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:15:17,018 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:17,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1706774205, now seen corresponding path program 1 times [2022-11-16 12:15:17,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:17,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818395906] [2022-11-16 12:15:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:15:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:15:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:15:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 12:15:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:15:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:15:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:15:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:15:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:15:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:15:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:15:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:15:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:15:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:15:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:15:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:15:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:15:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-16 12:15:17,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818395906] [2022-11-16 12:15:17,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818395906] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:15:17,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889625180] [2022-11-16 12:15:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:17,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:17,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:17,907 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:15:17,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 12:15:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:18,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-16 12:15:18,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:18,583 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 12:15:18,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-16 12:15:18,813 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 [2022-11-16 12:15:18,819 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 [2022-11-16 12:15:19,455 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 17 treesize of output 13 [2022-11-16 12:15:19,460 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 17 treesize of output 13 [2022-11-16 12:15:19,465 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 21 treesize of output 13 [2022-11-16 12:15:19,469 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 21 treesize of output 13 [2022-11-16 12:15:19,520 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 12:15:19,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2022-11-16 12:15:19,685 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 6 treesize of output 5 [2022-11-16 12:15:19,688 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 6 treesize of output 5 [2022-11-16 12:15:19,705 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1424 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_save_byte_from_array_#in~storage#1.base| v_ArrVal_1424))) (exists ((v_ArrVal_1425 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_save_byte_from_array_#in~storage#1.base| v_ArrVal_1425) |c_#memory_$Pointer$.base|))) is different from true [2022-11-16 12:15:19,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 12:15:19,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 12:15:19,764 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 19 treesize of output 7 [2022-11-16 12:15:19,770 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 19 treesize of output 7 [2022-11-16 12:15:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 160 proven. 29 refuted. 0 times theorem prover too weak. 93 trivial. 2 not checked. [2022-11-16 12:15:19,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:15:20,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889625180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:15:20,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:15:20,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20] total 29 [2022-11-16 12:15:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407269540] [2022-11-16 12:15:20,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:15:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-16 12:15:20,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-16 12:15:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=844, Unknown=3, NotChecked=58, Total=992 [2022-11-16 12:15:20,539 INFO L87 Difference]: Start difference. First operand 943 states and 1408 transitions. Second operand has 29 states, 26 states have (on average 4.5) internal successors, (117), 23 states have internal predecessors, (117), 10 states have call successors, (43), 8 states have call predecessors, (43), 9 states have return successors, (41), 9 states have call predecessors, (41), 10 states have call successors, (41) [2022-11-16 12:15:22,184 WARN L855 $PredicateComparison]: unable to prove that (and (or (not (= |c_save_byte_from_array_#in~array#1.base| 0)) (not (= |c_save_byte_from_array_#in~array#1.offset| 0))) (exists ((v_ArrVal_1424 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_save_byte_from_array_#in~storage#1.base| v_ArrVal_1424))) (exists ((v_ArrVal_1425 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_save_byte_from_array_#in~storage#1.base| v_ArrVal_1425) |c_#memory_$Pointer$.base|))) is different from true [2022-11-16 12:15:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:23,899 INFO L93 Difference]: Finished difference Result 1822 states and 2756 transitions. [2022-11-16 12:15:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 12:15:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 4.5) internal successors, (117), 23 states have internal predecessors, (117), 10 states have call successors, (43), 8 states have call predecessors, (43), 9 states have return successors, (41), 9 states have call predecessors, (41), 10 states have call successors, (41) Word has length 156 [2022-11-16 12:15:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:23,907 INFO L225 Difference]: With dead ends: 1822 [2022-11-16 12:15:23,908 INFO L226 Difference]: Without dead ends: 1056 [2022-11-16 12:15:23,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 264 SyntacticMatches, 11 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=278, Invalid=2802, Unknown=8, NotChecked=218, Total=3306 [2022-11-16 12:15:23,914 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 261 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 4265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 953 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:23,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1473 Invalid, 4265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 3077 Invalid, 0 Unknown, 953 Unchecked, 2.2s Time] [2022-11-16 12:15:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-11-16 12:15:24,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 887. [2022-11-16 12:15:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 523 states have (on average 1.1261950286806883) internal successors, (589), 528 states have internal predecessors, (589), 304 states have call successors, (304), 52 states have call predecessors, (304), 59 states have return successors, (406), 306 states have call predecessors, (406), 303 states have call successors, (406) [2022-11-16 12:15:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1299 transitions. [2022-11-16 12:15:24,056 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1299 transitions. Word has length 156 [2022-11-16 12:15:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:24,057 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1299 transitions. [2022-11-16 12:15:24,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 4.5) internal successors, (117), 23 states have internal predecessors, (117), 10 states have call successors, (43), 8 states have call predecessors, (43), 9 states have return successors, (41), 9 states have call predecessors, (41), 10 states have call successors, (41) [2022-11-16 12:15:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1299 transitions. [2022-11-16 12:15:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 12:15:24,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:24,061 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:24,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:24,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:15:24,272 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash 520460753, now seen corresponding path program 1 times [2022-11-16 12:15:24,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:24,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815277291] [2022-11-16 12:15:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:15:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:15:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:15:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:15:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:15:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:15:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:15:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:15:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:15:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:15:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:15:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:15:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:15:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:15:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:15:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:15:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:15:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:15:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:15:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-16 12:15:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-16 12:15:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 23 proven. 50 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-16 12:15:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815277291] [2022-11-16 12:15:27,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815277291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:15:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505883695] [2022-11-16 12:15:27,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:27,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:15:27,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 12:15:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:27,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:15:27,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 12:15:28,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:15:28,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505883695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:28,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:15:28,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 25 [2022-11-16 12:15:28,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840192164] [2022-11-16 12:15:28,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:28,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:15:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:15:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:15:28,112 INFO L87 Difference]: Start difference. First operand 887 states and 1299 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 12:15:28,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:28,392 INFO L93 Difference]: Finished difference Result 1620 states and 2488 transitions. [2022-11-16 12:15:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:15:28,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2022-11-16 12:15:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:28,398 INFO L225 Difference]: With dead ends: 1620 [2022-11-16 12:15:28,399 INFO L226 Difference]: Without dead ends: 853 [2022-11-16 12:15:28,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:15:28,405 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 3 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:28,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 512 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-16 12:15:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-11-16 12:15:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2022-11-16 12:15:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 500 states have (on average 1.122) internal successors, (561), 504 states have internal predecessors, (561), 296 states have call successors, (296), 50 states have call predecessors, (296), 56 states have return successors, (393), 298 states have call predecessors, (393), 295 states have call successors, (393) [2022-11-16 12:15:28,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1250 transitions. [2022-11-16 12:15:28,544 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1250 transitions. Word has length 182 [2022-11-16 12:15:28,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:28,544 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1250 transitions. [2022-11-16 12:15:28,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 12:15:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1250 transitions. [2022-11-16 12:15:28,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-16 12:15:28,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:28,549 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:28,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:28,759 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:28,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2091980582, now seen corresponding path program 1 times [2022-11-16 12:15:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:28,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832593594] [2022-11-16 12:15:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:15:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:15:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:15:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:15:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:15:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:15:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:15:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:15:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:15:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:15:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:15:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:15:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:15:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:15:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:15:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:15:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:15:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:15:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:15:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:15:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:15:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 23 proven. 52 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-16 12:15:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:31,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832593594] [2022-11-16 12:15:31,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832593594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:15:31,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672045729] [2022-11-16 12:15:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:31,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:31,959 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:15:31,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 12:15:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:32,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-16 12:15:32,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 260 proven. 10 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-16 12:15:34,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:15:34,928 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-16 12:15:34,928 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 20 treesize of output 19 [2022-11-16 12:15:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 24 proven. 28 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-11-16 12:15:34,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672045729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:15:34,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:15:34,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 15, 12] total 41 [2022-11-16 12:15:34,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623124226] [2022-11-16 12:15:34,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:15:34,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-16 12:15:34,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-16 12:15:34,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1511, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 12:15:34,986 INFO L87 Difference]: Start difference. First operand 853 states and 1250 transitions. Second operand has 41 states, 37 states have (on average 4.297297297297297) internal successors, (159), 36 states have internal predecessors, (159), 16 states have call successors, (72), 10 states have call predecessors, (72), 11 states have return successors, (68), 12 states have call predecessors, (68), 16 states have call successors, (68) [2022-11-16 12:15:47,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:47,623 INFO L93 Difference]: Finished difference Result 1752 states and 2591 transitions. [2022-11-16 12:15:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-16 12:15:47,624 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 37 states have (on average 4.297297297297297) internal successors, (159), 36 states have internal predecessors, (159), 16 states have call successors, (72), 10 states have call predecessors, (72), 11 states have return successors, (68), 12 states have call predecessors, (68), 16 states have call successors, (68) Word has length 184 [2022-11-16 12:15:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:47,632 INFO L225 Difference]: With dead ends: 1752 [2022-11-16 12:15:47,632 INFO L226 Difference]: Without dead ends: 1232 [2022-11-16 12:15:47,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 400 SyntacticMatches, 10 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2484 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=817, Invalid=8495, Unknown=0, NotChecked=0, Total=9312 [2022-11-16 12:15:47,640 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 877 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 7761 mSolverCounterSat, 977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 10046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 7761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1308 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:47,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 832 Invalid, 10046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [977 Valid, 7761 Invalid, 0 Unknown, 1308 Unchecked, 9.0s Time] [2022-11-16 12:15:47,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-11-16 12:15:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 958. [2022-11-16 12:15:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 555 states have (on average 1.1153153153153152) internal successors, (619), 559 states have internal predecessors, (619), 341 states have call successors, (341), 53 states have call predecessors, (341), 61 states have return successors, (426), 345 states have call predecessors, (426), 340 states have call successors, (426) [2022-11-16 12:15:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1386 transitions. [2022-11-16 12:15:47,808 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1386 transitions. Word has length 184 [2022-11-16 12:15:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:47,808 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1386 transitions. [2022-11-16 12:15:47,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 37 states have (on average 4.297297297297297) internal successors, (159), 36 states have internal predecessors, (159), 16 states have call successors, (72), 10 states have call predecessors, (72), 11 states have return successors, (68), 12 states have call predecessors, (68), 16 states have call successors, (68) [2022-11-16 12:15:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1386 transitions. [2022-11-16 12:15:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 12:15:47,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:47,813 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-16 12:15:47,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:48,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:48,023 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 124834454, now seen corresponding path program 1 times [2022-11-16 12:15:48,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:48,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344359051] [2022-11-16 12:15:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:48,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:15:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:15:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:15:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:15:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 12:15:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:15:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:15:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:15:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:15:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:15:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:15:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:15:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:15:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:15:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:15:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 12:15:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:15:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 9 proven. 52 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:15:53,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:53,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344359051] [2022-11-16 12:15:53,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344359051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:15:53,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802396489] [2022-11-16 12:15:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:53,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:15:53,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:53,643 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:15:53,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 12:15:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:54,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 2857 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-16 12:15:54,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:54,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-16 12:15:56,202 INFO L321 Elim1Store]: treesize reduction 20, result has 31.0 percent of original size [2022-11-16 12:15:56,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2022-11-16 12:15:56,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-16 12:15:56,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-11-16 12:15:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:15:56,249 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 12:15:56,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2022-11-16 12:16:00,721 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 6 treesize of output 5 [2022-11-16 12:16:00,725 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 6 treesize of output 5 [2022-11-16 12:16:00,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2022-11-16 12:16:00,761 WARN L855 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((|save_byte_from_array_~storage#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1706 (Array Int Int))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| v_ArrVal_1706)) (= (store |c_old(#memory_$Pointer$.base)| |save_byte_from_array_~storage#1.base| v_arrayElimArr_1) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-16 12:16:00,817 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-16 12:16:00,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 51 [2022-11-16 12:16:00,857 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-16 12:16:00,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 47 [2022-11-16 12:16:00,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:16:00,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-16 12:16:00,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-16 12:16:00,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-16 12:16:01,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-11-16 12:16:01,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-16 12:16:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 59 proven. 165 refuted. 0 times theorem prover too weak. 57 trivial. 2 not checked. [2022-11-16 12:16:06,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:16:10,729 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:16:10,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-11-16 12:16:10,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802396489] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:16:10,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:16:10,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 43] total 69 [2022-11-16 12:16:10,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996908400] [2022-11-16 12:16:10,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:16:10,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-11-16 12:16:10,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-11-16 12:16:10,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=6908, Unknown=12, NotChecked=168, Total=7482 [2022-11-16 12:16:10,960 INFO L87 Difference]: Start difference. First operand 958 states and 1386 transitions. Second operand has 69 states, 63 states have (on average 2.619047619047619) internal successors, (165), 57 states have internal predecessors, (165), 21 states have call successors, (47), 13 states have call predecessors, (47), 18 states have return successors, (44), 20 states have call predecessors, (44), 20 states have call successors, (44) [2022-11-16 12:16:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:51,287 INFO L93 Difference]: Finished difference Result 1683 states and 2456 transitions. [2022-11-16 12:16:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-16 12:16:51,288 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 63 states have (on average 2.619047619047619) internal successors, (165), 57 states have internal predecessors, (165), 21 states have call successors, (47), 13 states have call predecessors, (47), 18 states have return successors, (44), 20 states have call predecessors, (44), 20 states have call successors, (44) Word has length 162 [2022-11-16 12:16:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:51,295 INFO L225 Difference]: With dead ends: 1683 [2022-11-16 12:16:51,295 INFO L226 Difference]: Without dead ends: 1121 [2022-11-16 12:16:51,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 224 SyntacticMatches, 21 SemanticMatches, 132 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6114 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=1129, Invalid=16379, Unknown=52, NotChecked=262, Total=17822 [2022-11-16 12:16:51,303 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 392 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 6705 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 9401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 6705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2324 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:51,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1890 Invalid, 9401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 6705 Invalid, 0 Unknown, 2324 Unchecked, 6.9s Time] [2022-11-16 12:16:51,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-11-16 12:16:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1022. [2022-11-16 12:16:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 590 states have (on average 1.1084745762711865) internal successors, (654), 596 states have internal predecessors, (654), 359 states have call successors, (359), 64 states have call predecessors, (359), 72 states have return successors, (455), 361 states have call predecessors, (455), 357 states have call successors, (455) [2022-11-16 12:16:51,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1468 transitions. [2022-11-16 12:16:51,460 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1468 transitions. Word has length 162 [2022-11-16 12:16:51,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:51,461 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1468 transitions. [2022-11-16 12:16:51,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 63 states have (on average 2.619047619047619) internal successors, (165), 57 states have internal predecessors, (165), 21 states have call successors, (47), 13 states have call predecessors, (47), 18 states have return successors, (44), 20 states have call predecessors, (44), 20 states have call successors, (44) [2022-11-16 12:16:51,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1468 transitions. [2022-11-16 12:16:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-16 12:16:51,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:51,465 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:16:51,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-16 12:16:51,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:16:51,674 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:16:51,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash 580832500, now seen corresponding path program 1 times [2022-11-16 12:16:51,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:51,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486759421] [2022-11-16 12:16:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:51,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:16:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:16:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:16:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:16:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:16:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:16:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:16:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:16:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:16:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:16:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:16:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 12:16:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:16:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 12:16:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 12:16:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:16:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 12:16:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:16:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:16:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:16:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:16:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-11-16 12:16:54,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:54,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486759421] [2022-11-16 12:16:54,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486759421] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:16:54,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146323940] [2022-11-16 12:16:54,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:54,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:16:54,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:16:54,093 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:16:54,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ed7ee1-df0b-4ee7-b423-d9c3fa8f556e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 12:16:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:54,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-16 12:16:54,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:16:54,890 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 [2022-11-16 12:16:54,896 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 [2022-11-16 12:16:55,917 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 29 treesize of output 17 [2022-11-16 12:16:55,920 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 [2022-11-16 12:16:55,925 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 29 treesize of output 17 [2022-11-16 12:16:55,931 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 [2022-11-16 12:16:58,377 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 37 treesize of output 29 [2022-11-16 12:16:58,486 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:16:58,487 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 33 treesize of output 13 [2022-11-16 12:16:58,493 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:16:58,493 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 33 treesize of output 13 [2022-11-16 12:16:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 11 proven. 112 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-16 12:16:58,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:19:41,673 WARN L233 SmtUtils]: Spent 2.47m on a formula simplification that was a NOOP. DAG size: 123 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:19:46,163 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse34 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse34) 0)) (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse34)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse34) 0)))))) (.cse12 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse33 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse33) 0)) (not (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse33))) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse33) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse33) 0)))))) (.cse14 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse31 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse31) 0) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse31) 0)))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse32 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse32) 0) (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse32) 0)))))) (.cse5 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse30 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse30) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse30) 0)) (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616)))))) (.cse9 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|)) 0))) (.cse4 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse28 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse28) 0) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse28) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse28) 0))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse29 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse29) 0) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse29) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse29) 0))))))) (.cse1 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse26 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse26) 0) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse26) 0)))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse27 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse27) 0) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse27) 0)))))) (.cse16 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse25 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse25) 0)) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse25) 0) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse25) 0)))))) (.cse10 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse24 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse24) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse24) 0)))))) (.cse6 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|)) 0))) (.cse7 (not (< 0 (mod |c_save_byte_from_array_#in~size#1| 18446744073709551616)))) (.cse8 (and (= |c_save_byte_from_array_#in~array#1.base| 0) (= |c_save_byte_from_array_#in~array#1.offset| 0))) (.cse22 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse23 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse23) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse23) 0)))))) (.cse11 (< |c_save_byte_from_array_#in~storage#1.base| 1))) (and (or .cse0 .cse1) (or (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse2 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse2) 0) (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse2))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse3 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse3)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse3) 0))))) .cse4) (or .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse13 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse13) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse13) 0)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse13) 0))))) (or .cse0 .cse14) (or .cse12 (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse15 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse15) 0) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse15) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse15) 0)))))) (or .cse14 .cse16) (or (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58| Int)) (let ((.cse17 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.offset_BEFORE_CALL_58|))) (or (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse17) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse17) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse17) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#rhs~0#1.base_BEFORE_CALL_72|) .cse17) 0))))) (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse18 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (not (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse18))) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse18) 0)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse18) 0)))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse19 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse19) 0) (not (= 0 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse19))) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse19) 0))))))) (or .cse5 .cse9) (or (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse20 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse20) 0) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse20) 0)))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (let ((.cse21 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|))) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse21) 0) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) .cse21) 0))))) .cse4) (or .cse1 .cse16) (or (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|)) 0) (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616)))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|)) 0) (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))))) .cse22) (or .cse7 .cse8 .cse10 .cse6 .cse11) (or .cse7 .cse8 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|)) 0))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85| Int) (|v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86| Int)) (or (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|) 18446744073709551616))) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.base_BEFORE_CALL_85|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_compare_lexical_harness_~#lhs~0#1.offset_BEFORE_CALL_86|)) 0)))) .cse22 .cse11))) is different from false [2022-11-16 12:23:41,000 WARN L233 SmtUtils]: Spent 3.84m on a formula simplification that was a NOOP. DAG size: 159 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:25:50,159 WARN L233 SmtUtils]: Spent 2.13m on a formula simplification that was a NOOP. DAG size: 137 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:25:50,204 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 10 treesize of output 6 [2022-11-16 12:25:50,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 222 [2022-11-16 12:25:50,352 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 257 treesize of output 239 [2022-11-16 12:26:02,836 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)