./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- 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 12:23:01,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:23:01,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:23:01,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:23:01,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:23:01,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:23:01,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:23:01,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:23:01,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:23:01,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:23:01,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:23:01,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:23:01,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:23:01,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:23:01,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:23:01,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:23:01,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:23:01,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:23:01,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:23:01,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:23:01,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:23:01,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:23:01,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:23:01,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:23:01,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:23:01,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:23:01,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:23:01,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:23:01,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:23:01,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:23:01,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:23:01,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:23:01,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:23:01,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:23:01,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:23:01,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:23:01,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:23:01,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:23:01,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:23:01,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:23:01,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:23:01,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:23:01,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:23:01,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:23:01,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:23:01,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:23:01,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:23:01,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:23:01,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:23:01,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:23:01,675 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:23:01,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:23:01,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:23:01,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:23:01,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:23:01,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:23:01,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:23:01,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:23:01,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:23:01,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:23:01,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:23:01,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:23:01,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:23:01,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:01,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:23:01,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:23:01,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:23:01,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:23:01,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:23:01,683 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:23:01,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:23:01,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:23:01,683 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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2022-11-16 12:23:01,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:23:02,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:23:02,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:23:02,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:23:02,037 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:23:02,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2022-11-16 12:23:02,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/data/9fdb079d4/2f2ba45b92ac4e2ab4047f99ac166b33/FLAGe609a3158 [2022-11-16 12:23:03,209 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:23:03,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2022-11-16 12:23:03,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/data/9fdb079d4/2f2ba45b92ac4e2ab4047f99ac166b33/FLAGe609a3158 [2022-11-16 12:23:03,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/data/9fdb079d4/2f2ba45b92ac4e2ab4047f99ac166b33 [2022-11-16 12:23:03,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:23:03,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:23:03,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:03,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:23:03,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:23:03,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:03" (1/1) ... [2022-11-16 12:23:03,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f792ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:03, skipping insertion in model container [2022-11-16 12:23:03,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:03" (1/1) ... [2022-11-16 12:23:03,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:23:03,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:23:04,027 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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2022-11-16 12:23:04,036 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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2022-11-16 12:23:05,183 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,184 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,184 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,186 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,187 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,204 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,215 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,217 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,218 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,220 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,222 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,222 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,223 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:05,786 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:23:05,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:23:05,790 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:23:05,791 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:23:05,794 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:23:05,795 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:23:05,796 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:23:05,797 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:23:05,798 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:23:05,798 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:23:06,125 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:23:06,543 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,545 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,578 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,581 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,589 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,591 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,626 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,628 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,628 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,631 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,632 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,632 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,633 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:06,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:23:06,806 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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2022-11-16 12:23:06,807 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_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2022-11-16 12:23:06,863 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,863 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,864 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,864 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,865 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,876 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,878 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,880 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,881 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,882 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,883 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,883 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,884 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:06,926 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:23:06,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:23:06,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:23:06,931 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:23:06,933 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:23:06,933 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:23:06,934 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:23:06,934 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:23:06,935 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:23:06,935 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:23:06,963 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:23:07,106 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,106 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,115 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,116 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,146 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,147 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,163 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,163 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,164 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,164 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,165 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,165 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,166 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:23:07,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:07,544 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:23:07,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07 WrapperNode [2022-11-16 12:23:07,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:07,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:07,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:23:07,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:23:07,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,821 INFO L138 Inliner]: procedures = 775, calls = 2445, calls flagged for inlining = 71, calls inlined = 16, statements flattened = 713 [2022-11-16 12:23:07,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:07,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:23:07,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:23:07,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:23:07,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:23:07,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:23:07,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:23:07,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:23:07,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (1/1) ... [2022-11-16 12:23:07,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:07,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:07,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:23:08,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:23:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2022-11-16 12:23:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2022-11-16 12:23:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 12:23:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:23:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:23:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:23:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 12:23:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 12:23:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:23:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:23:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-16 12:23:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-16 12:23:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:23:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:23:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:23:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:23:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:23:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:23:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:23:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 12:23:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 12:23:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-16 12:23:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-16 12:23:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:23:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-16 12:23:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-16 12:23:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:23:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 12:23:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 12:23:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:23:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-16 12:23:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-16 12:23:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-16 12:23:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-16 12:23:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:23:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-16 12:23:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-16 12:23:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:23:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:23:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:23:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:23:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-16 12:23:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-16 12:23:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:23:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 12:23:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 12:23:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 12:23:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 12:23:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-16 12:23:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-16 12:23:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:23:08,519 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:23:08,522 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:23:09,720 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:23:09,735 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:23:09,735 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:23:09,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:09 BoogieIcfgContainer [2022-11-16 12:23:09,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:23:09,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:23:09,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:23:09,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:23:09,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:23:03" (1/3) ... [2022-11-16 12:23:09,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c4d7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:09, skipping insertion in model container [2022-11-16 12:23:09,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:07" (2/3) ... [2022-11-16 12:23:09,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c4d7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:09, skipping insertion in model container [2022-11-16 12:23:09,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:09" (3/3) ... [2022-11-16 12:23:09,753 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i [2022-11-16 12:23:09,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:23:09,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:23:09,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:23:09,873 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;@1b6907ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:23:09,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:23:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 124 states have (on average 1.185483870967742) internal successors, (147), 125 states have internal predecessors, (147), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-16 12:23:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-16 12:23:09,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:09,895 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:09,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash 612907166, now seen corresponding path program 1 times [2022-11-16 12:23:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667315527] [2022-11-16 12:23:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:09,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:10,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:10,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667315527] [2022-11-16 12:23:10,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 12:23:10,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641771914] [2022-11-16 12:23:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:10,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:23:10,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:10,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:23:10,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:23:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:11,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:23:11,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-16 12:23:11,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:23:11,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641771914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:11,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:11,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:23:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244267397] [2022-11-16 12:23:11,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:11,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:23:11,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:11,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:23:11,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:23:11,536 INFO L87 Difference]: Start difference. First operand has 192 states, 124 states have (on average 1.185483870967742) internal successors, (147), 125 states have internal predecessors, (147), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 12:23:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:11,645 INFO L93 Difference]: Finished difference Result 379 states and 500 transitions. [2022-11-16 12:23:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:23:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-16 12:23:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:11,668 INFO L225 Difference]: With dead ends: 379 [2022-11-16 12:23:11,668 INFO L226 Difference]: Without dead ends: 185 [2022-11-16 12:23:11,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:23:11,690 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:11,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:23:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-16 12:23:11,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-16 12:23:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 118 states have (on average 1.152542372881356) internal successors, (136), 119 states have internal predecessors, (136), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-16 12:23:11,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 229 transitions. [2022-11-16 12:23:11,773 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 229 transitions. Word has length 132 [2022-11-16 12:23:11,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:11,775 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 229 transitions. [2022-11-16 12:23:11,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 12:23:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 229 transitions. [2022-11-16 12:23:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-16 12:23:11,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:11,783 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:11,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:23:11,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:23:11,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:11,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1662345498, now seen corresponding path program 1 times [2022-11-16 12:23:11,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:11,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260813593] [2022-11-16 12:23:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:12,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:23:12,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505146601] [2022-11-16 12:23:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:12,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:23:12,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:12,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:23:12,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:23:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:12,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:23:12,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 12:23:12,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:23:12,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:12,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260813593] [2022-11-16 12:23:12,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:23:12,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505146601] [2022-11-16 12:23:12,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505146601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:12,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:12,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:12,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430669710] [2022-11-16 12:23:12,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:12,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:23:12,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:12,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:23:12,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:23:12,933 INFO L87 Difference]: Start difference. First operand 185 states and 229 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 12:23:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:13,034 INFO L93 Difference]: Finished difference Result 333 states and 413 transitions. [2022-11-16 12:23:13,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:23:13,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-16 12:23:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:13,046 INFO L225 Difference]: With dead ends: 333 [2022-11-16 12:23:13,048 INFO L226 Difference]: Without dead ends: 190 [2022-11-16 12:23:13,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:13,053 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 2 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:13,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 899 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:23:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-16 12:23:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-16 12:23:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 122 states have (on average 1.1475409836065573) internal successors, (140), 123 states have internal predecessors, (140), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47) [2022-11-16 12:23:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 234 transitions. [2022-11-16 12:23:13,097 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 234 transitions. Word has length 132 [2022-11-16 12:23:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:13,103 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 234 transitions. [2022-11-16 12:23:13,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 12:23:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 234 transitions. [2022-11-16 12:23:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 12:23:13,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:13,112 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:13,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:23:13,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:23:13,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:13,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:13,323 INFO L85 PathProgramCache]: Analyzing trace with hash 402505814, now seen corresponding path program 1 times [2022-11-16 12:23:13,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:13,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302223294] [2022-11-16 12:23:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:13,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:23:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:23:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:23:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:23:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:23:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:23:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:23:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 12:23:15,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:15,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302223294] [2022-11-16 12:23:15,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302223294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:15,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:15,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:23:15,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426701383] [2022-11-16 12:23:15,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:15,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:15,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:15,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:15,882 INFO L87 Difference]: Start difference. First operand 190 states and 234 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:23:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:17,645 INFO L93 Difference]: Finished difference Result 344 states and 429 transitions. [2022-11-16 12:23:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:23:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 138 [2022-11-16 12:23:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:17,650 INFO L225 Difference]: With dead ends: 344 [2022-11-16 12:23:17,650 INFO L226 Difference]: Without dead ends: 215 [2022-11-16 12:23:17,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:23:17,652 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 227 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:17,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 986 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:23:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-16 12:23:17,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 195. [2022-11-16 12:23:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 126 states have (on average 1.1507936507936507) internal successors, (145), 128 states have internal predecessors, (145), 47 states have call successors, (47), 19 states have call predecessors, (47), 21 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2022-11-16 12:23:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 242 transitions. [2022-11-16 12:23:17,680 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 242 transitions. Word has length 138 [2022-11-16 12:23:17,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:17,680 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 242 transitions. [2022-11-16 12:23:17,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 9 states have internal predecessors, (62), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:23:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2022-11-16 12:23:17,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 12:23:17,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:17,684 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:17,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:23:17,685 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:17,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1508536744, now seen corresponding path program 1 times [2022-11-16 12:23:17,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:17,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466842068] [2022-11-16 12:23:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:23:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:23:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:23:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:23:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:23:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:23:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:23:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 12:23:18,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:18,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466842068] [2022-11-16 12:23:18,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466842068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:18,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:18,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:23:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734998656] [2022-11-16 12:23:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:18,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:23:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:18,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:23:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:23:18,673 INFO L87 Difference]: Start difference. First operand 195 states and 242 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:23:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:19,601 INFO L93 Difference]: Finished difference Result 351 states and 441 transitions. [2022-11-16 12:23:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:23:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 138 [2022-11-16 12:23:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:19,605 INFO L225 Difference]: With dead ends: 351 [2022-11-16 12:23:19,605 INFO L226 Difference]: Without dead ends: 217 [2022-11-16 12:23:19,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:23:19,607 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 249 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:19,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 549 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:23:19,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-16 12:23:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 197. [2022-11-16 12:23:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 129 states have internal predecessors, (146), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 245 transitions. [2022-11-16 12:23:19,637 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 245 transitions. Word has length 138 [2022-11-16 12:23:19,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:19,637 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 245 transitions. [2022-11-16 12:23:19,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:23:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 245 transitions. [2022-11-16 12:23:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 12:23:19,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:19,641 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:19,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:23:19,642 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1821333084, now seen corresponding path program 1 times [2022-11-16 12:23:19,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:19,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709075617] [2022-11-16 12:23:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:19,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:23:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:23:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:23:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:23:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:23:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:23:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:23:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 12:23:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 12:23:21,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:21,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709075617] [2022-11-16 12:23:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709075617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:21,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:21,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:23:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788419100] [2022-11-16 12:23:21,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:23:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:23:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:23:21,005 INFO L87 Difference]: Start difference. First operand 197 states and 245 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 12:23:22,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:22,348 INFO L93 Difference]: Finished difference Result 353 states and 449 transitions. [2022-11-16 12:23:22,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:23:22,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 144 [2022-11-16 12:23:22,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:22,351 INFO L225 Difference]: With dead ends: 353 [2022-11-16 12:23:22,351 INFO L226 Difference]: Without dead ends: 215 [2022-11-16 12:23:22,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:23:22,353 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 106 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:22,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 870 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:23:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-16 12:23:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 197. [2022-11-16 12:23:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 127 states have (on average 1.141732283464567) internal successors, (145), 129 states have internal predecessors, (145), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 244 transitions. [2022-11-16 12:23:22,381 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 244 transitions. Word has length 144 [2022-11-16 12:23:22,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:22,384 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 244 transitions. [2022-11-16 12:23:22,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-16 12:23:22,385 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 244 transitions. [2022-11-16 12:23:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-16 12:23:22,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:22,388 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:22,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:23:22,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:22,389 INFO L85 PathProgramCache]: Analyzing trace with hash -707873686, now seen corresponding path program 1 times [2022-11-16 12:23:22,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:22,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845659995] [2022-11-16 12:23:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:22,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:23:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:23:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:23:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:23:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:23:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-16 12:23:24,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:24,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845659995] [2022-11-16 12:23:24,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845659995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:24,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:24,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:23:24,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149981762] [2022-11-16 12:23:24,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:24,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:23:24,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:23:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:23:24,494 INFO L87 Difference]: Start difference. First operand 197 states and 244 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 12:23:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:26,128 INFO L93 Difference]: Finished difference Result 230 states and 283 transitions. [2022-11-16 12:23:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:23:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 149 [2022-11-16 12:23:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:26,131 INFO L225 Difference]: With dead ends: 230 [2022-11-16 12:23:26,132 INFO L226 Difference]: Without dead ends: 228 [2022-11-16 12:23:26,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:23:26,133 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 178 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:26,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 781 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:23:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-16 12:23:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 201. [2022-11-16 12:23:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 130 states have (on average 1.1384615384615384) internal successors, (148), 132 states have internal predecessors, (148), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions. [2022-11-16 12:23:26,169 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 149 [2022-11-16 12:23:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:26,171 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 247 transitions. [2022-11-16 12:23:26,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 12:23:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions. [2022-11-16 12:23:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-16 12:23:26,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:26,175 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:26,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:23:26,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1987910354, now seen corresponding path program 1 times [2022-11-16 12:23:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114689927] [2022-11-16 12:23:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:23:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:23:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:23:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:23:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:23:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:23:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:23:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:23:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:23:32,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:32,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114689927] [2022-11-16 12:23:32,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114689927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:32,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:32,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 12:23:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739341645] [2022-11-16 12:23:32,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:32,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:23:32,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:23:32,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:23:32,316 INFO L87 Difference]: Start difference. First operand 201 states and 247 transitions. Second operand has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 18 states have internal predecessors, (74), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) [2022-11-16 12:23:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:35,461 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2022-11-16 12:23:35,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:23:35,462 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 18 states have internal predecessors, (74), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) Word has length 167 [2022-11-16 12:23:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:35,464 INFO L225 Difference]: With dead ends: 257 [2022-11-16 12:23:35,465 INFO L226 Difference]: Without dead ends: 231 [2022-11-16 12:23:35,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=1099, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 12:23:35,467 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 323 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:35,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 887 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 12:23:35,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-16 12:23:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 201. [2022-11-16 12:23:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 130 states have (on average 1.1307692307692307) internal successors, (147), 132 states have internal predecessors, (147), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2022-11-16 12:23:35,499 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 167 [2022-11-16 12:23:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:35,500 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2022-11-16 12:23:35,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 18 states have internal predecessors, (74), 13 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 14 states have call predecessors, (27), 13 states have call successors, (27) [2022-11-16 12:23:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2022-11-16 12:23:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 12:23:35,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:35,504 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:35,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:23:35,504 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2117241235, now seen corresponding path program 1 times [2022-11-16 12:23:35,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:35,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764265746] [2022-11-16 12:23:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:23:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:23:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:23:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:23:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:23:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-16 12:23:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:23:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:23:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-16 12:23:36,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:36,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764265746] [2022-11-16 12:23:36,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764265746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:36,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:36,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:23:36,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833524858] [2022-11-16 12:23:36,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:36,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:36,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:36,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:36,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:36,125 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-16 12:23:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:36,747 INFO L93 Difference]: Finished difference Result 305 states and 367 transitions. [2022-11-16 12:23:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:23:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2022-11-16 12:23:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:36,749 INFO L225 Difference]: With dead ends: 305 [2022-11-16 12:23:36,750 INFO L226 Difference]: Without dead ends: 219 [2022-11-16 12:23:36,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:23:36,751 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 93 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:36,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 433 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:23:36,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-16 12:23:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-11-16 12:23:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 131 states have (on average 1.1297709923664123) internal successors, (148), 133 states have internal predecessors, (148), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2022-11-16 12:23:36,785 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 174 [2022-11-16 12:23:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:36,785 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2022-11-16 12:23:36,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-16 12:23:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2022-11-16 12:23:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 12:23:36,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:36,788 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:36,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:23:36,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:36,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1156657707, now seen corresponding path program 1 times [2022-11-16 12:23:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:36,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52120332] [2022-11-16 12:23:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:23:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:23:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:23:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:23:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:23:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-16 12:23:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:23:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:23:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-16 12:23:37,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:37,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52120332] [2022-11-16 12:23:37,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52120332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:37,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:37,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:23:37,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476310370] [2022-11-16 12:23:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:37,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:23:37,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:23:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:23:37,779 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-16 12:23:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:38,611 INFO L93 Difference]: Finished difference Result 329 states and 401 transitions. [2022-11-16 12:23:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:23:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 174 [2022-11-16 12:23:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:38,614 INFO L225 Difference]: With dead ends: 329 [2022-11-16 12:23:38,614 INFO L226 Difference]: Without dead ends: 219 [2022-11-16 12:23:38,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:23:38,616 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 207 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:38,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 454 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:23:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-16 12:23:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-11-16 12:23:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 131 states have (on average 1.1221374045801527) internal successors, (147), 133 states have internal predecessors, (147), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:23:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 246 transitions. [2022-11-16 12:23:38,652 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 246 transitions. Word has length 174 [2022-11-16 12:23:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:38,658 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 246 transitions. [2022-11-16 12:23:38,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-16 12:23:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 246 transitions. [2022-11-16 12:23:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-16 12:23:38,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:38,663 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:38,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:23:38,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:38,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash -32322626, now seen corresponding path program 1 times [2022-11-16 12:23:38,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:38,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029390846] [2022-11-16 12:23:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:23:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:23:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:23:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:23:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:23:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:23:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:23:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:23:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:23:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:23:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:23:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:23:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:23:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:23:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:23:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:23:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:23:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:23:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:23:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:23:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:40,579 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-16 12:23:40,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:40,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029390846] [2022-11-16 12:23:40,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029390846] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:23:40,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718350664] [2022-11-16 12:23:40,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:40,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:23:40,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:40,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:23:40,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:23:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:41,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 2520 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-16 12:23:41,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:23:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 101 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 12:23:41,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:23:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-16 12:23:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718350664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:23:42,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:23:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 24 [2022-11-16 12:23:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189262603] [2022-11-16 12:23:42,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:23:42,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 12:23:42,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:42,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 12:23:42,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:23:42,210 INFO L87 Difference]: Start difference. First operand 202 states and 246 transitions. Second operand has 24 states, 20 states have (on average 6.25) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) [2022-11-16 12:23:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:45,476 INFO L93 Difference]: Finished difference Result 340 states and 416 transitions. [2022-11-16 12:23:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:23:45,477 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 6.25) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) Word has length 183 [2022-11-16 12:23:45,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:45,479 INFO L225 Difference]: With dead ends: 340 [2022-11-16 12:23:45,479 INFO L226 Difference]: Without dead ends: 228 [2022-11-16 12:23:45,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2022-11-16 12:23:45,482 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 438 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:45,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1369 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 12:23:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-16 12:23:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2022-11-16 12:23:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 135 states have (on average 1.1185185185185185) internal successors, (151), 139 states have internal predecessors, (151), 48 states have call successors, (48), 20 states have call predecessors, (48), 24 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2022-11-16 12:23:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 253 transitions. [2022-11-16 12:23:45,521 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 253 transitions. Word has length 183 [2022-11-16 12:23:45,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:45,522 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 253 transitions. [2022-11-16 12:23:45,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 6.25) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (52), 5 states have call predecessors, (52), 7 states have call successors, (52) [2022-11-16 12:23:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 253 transitions. [2022-11-16 12:23:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 12:23:45,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:45,527 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:45,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:23:45,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:23:45,738 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash 463594926, now seen corresponding path program 1 times [2022-11-16 12:23:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:45,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050934535] [2022-11-16 12:23:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:45,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:31:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:31:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:31:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:31:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:31:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:31:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:31:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:31:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:31:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:31:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:31:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:31:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-11-16 12:31:45,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:45,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050934535] [2022-11-16 12:31:45,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050934535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:31:45,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251557928] [2022-11-16 12:31:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:45,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:45,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:45,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:45,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:31:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:45,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:31:45,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-16 12:31:46,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:46,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251557928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:46,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:31:46,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-16 12:31:46,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435917294] [2022-11-16 12:31:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:46,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:31:46,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:46,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:31:46,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:31:46,019 INFO L87 Difference]: Start difference. First operand 208 states and 253 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:31:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:46,329 INFO L93 Difference]: Finished difference Result 325 states and 393 transitions. [2022-11-16 12:31:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:31:46,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 194 [2022-11-16 12:31:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:46,332 INFO L225 Difference]: With dead ends: 325 [2022-11-16 12:31:46,332 INFO L226 Difference]: Without dead ends: 208 [2022-11-16 12:31:46,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:31:46,333 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 271 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:46,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 641 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:31:46,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-16 12:31:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 205. [2022-11-16 12:31:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 133 states have (on average 1.1203007518796992) internal successors, (149), 136 states have internal predecessors, (149), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:31:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 248 transitions. [2022-11-16 12:31:46,360 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 248 transitions. Word has length 194 [2022-11-16 12:31:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:46,361 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 248 transitions. [2022-11-16 12:31:46,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-16 12:31:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 248 transitions. [2022-11-16 12:31:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-16 12:31:46,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:46,364 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:46,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:46,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:46,574 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash 757991494, now seen corresponding path program 1 times [2022-11-16 12:31:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:46,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435313382] [2022-11-16 12:31:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:31:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:31:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:31:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:31:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:31:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:31:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:31:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:31:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:47,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:31:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:31:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:31:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:31:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-16 12:31:48,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:48,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435313382] [2022-11-16 12:31:48,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435313382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:48,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:48,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:31:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032139711] [2022-11-16 12:31:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:31:48,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:31:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:31:48,101 INFO L87 Difference]: Start difference. First operand 205 states and 248 transitions. Second operand has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 12:31:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:49,199 INFO L93 Difference]: Finished difference Result 228 states and 274 transitions. [2022-11-16 12:31:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:31:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 205 [2022-11-16 12:31:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:49,202 INFO L225 Difference]: With dead ends: 228 [2022-11-16 12:31:49,202 INFO L226 Difference]: Without dead ends: 226 [2022-11-16 12:31:49,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:31:49,203 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 133 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:49,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1012 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:31:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-16 12:31:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 209. [2022-11-16 12:31:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 136 states have (on average 1.1176470588235294) internal successors, (152), 139 states have internal predecessors, (152), 48 states have call successors, (48), 21 states have call predecessors, (48), 24 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2022-11-16 12:31:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2022-11-16 12:31:49,230 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 205 [2022-11-16 12:31:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2022-11-16 12:31:49,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 12:31:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2022-11-16 12:31:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-16 12:31:49,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:49,234 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:49,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:31:49,235 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1812316404, now seen corresponding path program 1 times [2022-11-16 12:31:49,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:49,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314322040] [2022-11-16 12:31:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:49,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:31:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:31:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:31:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:31:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:31:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 12:31:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:31:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:31:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:31:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:31:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:31:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:31:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:31:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:31:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:31:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:31:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:31:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:31:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:31:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:31:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:31:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:31:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:31:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:31:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:31:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 12:31:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-16 12:31:50,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:50,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314322040] [2022-11-16 12:31:50,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314322040] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:31:50,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457120911] [2022-11-16 12:31:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:50,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:50,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:50,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:50,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:31:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:51,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 2641 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 12:31:51,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-16 12:31:51,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:51,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457120911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:51,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:31:51,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 13 [2022-11-16 12:31:51,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225921265] [2022-11-16 12:31:51,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:51,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:31:51,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:51,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:31:51,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:31:51,581 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-16 12:31:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:51,970 INFO L93 Difference]: Finished difference Result 371 states and 446 transitions. [2022-11-16 12:31:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:31:51,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 211 [2022-11-16 12:31:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:51,973 INFO L225 Difference]: With dead ends: 371 [2022-11-16 12:31:51,973 INFO L226 Difference]: Without dead ends: 209 [2022-11-16 12:31:51,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:51,974 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 233 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:51,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 841 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-16 12:31:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2022-11-16 12:31:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 132 states have (on average 1.106060606060606) internal successors, (146), 135 states have internal predecessors, (146), 48 states have call successors, (48), 21 states have call predecessors, (48), 23 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-11-16 12:31:51,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 244 transitions. [2022-11-16 12:31:51,998 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 244 transitions. Word has length 211 [2022-11-16 12:31:51,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:51,999 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 244 transitions. [2022-11-16 12:31:51,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-16 12:31:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 244 transitions. [2022-11-16 12:31:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-16 12:31:52,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:52,002 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:52,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:52,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:31:52,213 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:52,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1761039897, now seen corresponding path program 1 times [2022-11-16 12:31:52,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:52,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962615529] [2022-11-16 12:31:52,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:52,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:52,289 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:31:52,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525063915] [2022-11-16 12:31:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:52,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:31:52,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:52,291 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:31:52,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:32:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:06,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2746 conjuncts, 124 conjunts are in the unsatisfiable core [2022-11-16 12:32:06,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:06,875 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 12:32:06,954 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 12:32:07,038 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 12:32:07,737 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 36 treesize of output 23 [2022-11-16 12:32:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 151 proven. 7 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-16 12:32:07,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:32:09,835 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 36 treesize of output 32 [2022-11-16 12:32:10,841 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 36 treesize of output 32 [2022-11-16 12:32:11,558 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 38 treesize of output 34 [2022-11-16 12:32:12,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:12,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962615529] [2022-11-16 12:32:12,134 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:32:12,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525063915] [2022-11-16 12:32:12,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525063915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:12,134 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:12,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-11-16 12:32:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672467710] [2022-11-16 12:32:12,135 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 12:32:12,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 12:32:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 12:32:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1844, Unknown=0, NotChecked=0, Total=1980 [2022-11-16 12:32:12,137 INFO L87 Difference]: Start difference. First operand 204 states and 244 transitions. Second operand has 24 states, 19 states have (on average 4.894736842105263) internal successors, (93), 21 states have internal predecessors, (93), 11 states have call successors, (33), 3 states have call predecessors, (33), 8 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2022-11-16 12:32:14,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:14,105 INFO L93 Difference]: Finished difference Result 378 states and 452 transitions. [2022-11-16 12:32:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 12:32:14,106 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 4.894736842105263) internal successors, (93), 21 states have internal predecessors, (93), 11 states have call successors, (33), 3 states have call predecessors, (33), 8 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) Word has length 217 [2022-11-16 12:32:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:14,108 INFO L225 Difference]: With dead ends: 378 [2022-11-16 12:32:14,108 INFO L226 Difference]: Without dead ends: 215 [2022-11-16 12:32:14,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=241, Invalid=3065, Unknown=0, NotChecked=0, Total=3306 [2022-11-16 12:32:14,110 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 141 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:14,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3497 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 896 Invalid, 0 Unknown, 59 Unchecked, 1.1s Time] [2022-11-16 12:32:14,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-16 12:32:14,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2022-11-16 12:32:14,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 138 states have (on average 1.1014492753623188) internal successors, (152), 143 states have internal predecessors, (152), 49 states have call successors, (49), 21 states have call predecessors, (49), 25 states have return successors, (53), 48 states have call predecessors, (53), 48 states have call successors, (53) [2022-11-16 12:32:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 254 transitions. [2022-11-16 12:32:14,139 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 254 transitions. Word has length 217 [2022-11-16 12:32:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:14,139 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 254 transitions. [2022-11-16 12:32:14,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 4.894736842105263) internal successors, (93), 21 states have internal predecessors, (93), 11 states have call successors, (33), 3 states have call predecessors, (33), 8 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2022-11-16 12:32:14,140 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 254 transitions. [2022-11-16 12:32:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 12:32:14,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:14,142 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:14,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:14,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 12:32:14,350 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:14,351 INFO L85 PathProgramCache]: Analyzing trace with hash 771313271, now seen corresponding path program 1 times [2022-11-16 12:32:14,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:14,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420269074] [2022-11-16 12:32:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:14,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:32:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:32:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:32:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:32:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:32:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 12:32:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:32:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:32:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:32:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:32:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:32:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:32:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:32:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:32:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:32:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:32:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:32:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:32:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:32:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:32:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:32:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-16 12:32:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:32:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:32:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 12:32:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:32:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 12:32:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-16 12:32:15,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:15,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420269074] [2022-11-16 12:32:15,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420269074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:15,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:15,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:32:15,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901061457] [2022-11-16 12:32:15,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:15,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:32:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:15,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:32:15,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:32:15,366 INFO L87 Difference]: Start difference. First operand 213 states and 254 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 12:32:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:16,190 INFO L93 Difference]: Finished difference Result 404 states and 478 transitions. [2022-11-16 12:32:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:32:16,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 223 [2022-11-16 12:32:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:16,192 INFO L225 Difference]: With dead ends: 404 [2022-11-16 12:32:16,192 INFO L226 Difference]: Without dead ends: 211 [2022-11-16 12:32:16,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:32:16,194 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 140 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:16,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 827 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:32:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-16 12:32:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 202. [2022-11-16 12:32:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 131 states have (on average 1.0916030534351144) internal successors, (143), 134 states have internal predecessors, (143), 47 states have call successors, (47), 21 states have call predecessors, (47), 23 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2022-11-16 12:32:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 239 transitions. [2022-11-16 12:32:16,220 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 239 transitions. Word has length 223 [2022-11-16 12:32:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:16,220 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 239 transitions. [2022-11-16 12:32:16,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (34), 5 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 12:32:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 239 transitions. [2022-11-16 12:32:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 12:32:16,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:16,222 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:16,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:32:16,223 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:16,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:16,223 INFO L85 PathProgramCache]: Analyzing trace with hash -183391079, now seen corresponding path program 1 times [2022-11-16 12:32:16,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:16,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440819286] [2022-11-16 12:32:16,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:16,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:16,288 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:32:16,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025966280] [2022-11-16 12:32:16,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:16,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:16,290 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:16,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:32:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:16,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2750 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:32:16,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-16 12:32:17,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:17,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:17,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440819286] [2022-11-16 12:32:17,039 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:32:17,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025966280] [2022-11-16 12:32:17,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025966280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:17,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:17,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:32:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759875501] [2022-11-16 12:32:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:17,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:32:17,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:17,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:32:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:17,041 INFO L87 Difference]: Start difference. First operand 202 states and 239 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 12:32:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:17,069 INFO L93 Difference]: Finished difference Result 212 states and 246 transitions. [2022-11-16 12:32:17,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:32:17,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 223 [2022-11-16 12:32:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:17,071 INFO L225 Difference]: With dead ends: 212 [2022-11-16 12:32:17,071 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:32:17,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:32:17,072 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 2 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:17,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 272 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:32:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:32:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:32:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:32:17,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2022-11-16 12:32:17,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:17,074 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:32:17,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 12:32:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:32:17,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:32:17,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:32:17,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:17,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 12:32:17,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:32:18,569 INFO L899 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2022-11-16 12:32:18,569 INFO L895 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,569 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,569 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2022-11-16 12:32:18,569 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2022-11-16 12:32:18,569 INFO L902 garLoopResultBuilder]: At program point L10017-4(line 10017) the Hoare annotation is: true [2022-11-16 12:32:18,569 INFO L899 garLoopResultBuilder]: For program point L10017-5(line 10017) no Hoare annotation was computed. [2022-11-16 12:32:18,569 INFO L899 garLoopResultBuilder]: For program point L10017-7(line 10017) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point L10017(line 10017) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point L10017-2(line 10017) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point L10017-3(line 10017) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L902 garLoopResultBuilder]: At program point aws_hash_table_is_validENTRY(lines 10015 10018) the Hoare annotation is: true [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validEXIT(lines 10015 10018) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validFINAL(lines 10015 10018) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-16 12:32:18,570 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-16 12:32:18,571 INFO L899 garLoopResultBuilder]: For program point L7130(lines 7130 7134) no Hoare annotation was computed. [2022-11-16 12:32:18,571 INFO L899 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7122 7135) no Hoare annotation was computed. [2022-11-16 12:32:18,571 INFO L902 garLoopResultBuilder]: At program point L7126(lines 7126 7128) the Hoare annotation is: true [2022-11-16 12:32:18,571 INFO L902 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7122 7135) the Hoare annotation is: true [2022-11-16 12:32:18,571 INFO L899 garLoopResultBuilder]: For program point L7130-2(lines 7122 7135) no Hoare annotation was computed. [2022-11-16 12:32:18,571 INFO L899 garLoopResultBuilder]: For program point L7123-1(lines 7123 7125) no Hoare annotation was computed. [2022-11-16 12:32:18,571 INFO L902 garLoopResultBuilder]: At program point L7123(lines 7123 7125) the Hoare annotation is: true [2022-11-16 12:32:18,572 INFO L899 garLoopResultBuilder]: For program point L7126-1(lines 7126 7128) no Hoare annotation was computed. [2022-11-16 12:32:18,572 INFO L895 garLoopResultBuilder]: At program point hash_table_state_required_bytesENTRY(lines 10128 10140) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,572 INFO L899 garLoopResultBuilder]: For program point L10135-2(lines 10135 10137) no Hoare annotation was computed. [2022-11-16 12:32:18,572 INFO L895 garLoopResultBuilder]: At program point L10131(line 10131) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0))) [2022-11-16 12:32:18,572 INFO L899 garLoopResultBuilder]: For program point L10131-1(line 10131) no Hoare annotation was computed. [2022-11-16 12:32:18,573 INFO L895 garLoopResultBuilder]: At program point L10135(line 10135) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (let ((.cse0 (* |hash_table_state_required_bytes_#in~size| 24))) (and (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= .cse0 |hash_table_state_required_bytes_#t~mem1321|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0) (= (select (select |#memory_int| |hash_table_state_required_bytes_~#elemsize~0.base|) |hash_table_state_required_bytes_~#elemsize~0.offset|) .cse0)))) [2022-11-16 12:32:18,573 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesEXIT(lines 10128 10140) no Hoare annotation was computed. [2022-11-16 12:32:18,573 INFO L899 garLoopResultBuilder]: For program point L10135-1(line 10135) no Hoare annotation was computed. [2022-11-16 12:32:18,573 INFO L899 garLoopResultBuilder]: For program point L10131-2(lines 10131 10133) no Hoare annotation was computed. [2022-11-16 12:32:18,573 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesFINAL(lines 10128 10140) no Hoare annotation was computed. [2022-11-16 12:32:18,573 INFO L902 garLoopResultBuilder]: At program point memset_override_0_implENTRY(lines 7397 7412) the Hoare annotation is: true [2022-11-16 12:32:18,573 INFO L899 garLoopResultBuilder]: For program point memset_override_0_implFINAL(lines 7397 7412) no Hoare annotation was computed. [2022-11-16 12:32:18,574 INFO L899 garLoopResultBuilder]: For program point L7403-1(line 7403) no Hoare annotation was computed. [2022-11-16 12:32:18,574 INFO L902 garLoopResultBuilder]: At program point L7403(line 7403) the Hoare annotation is: true [2022-11-16 12:32:18,574 INFO L899 garLoopResultBuilder]: For program point L7407-4(lines 7407 7409) no Hoare annotation was computed. [2022-11-16 12:32:18,574 INFO L902 garLoopResultBuilder]: At program point L7407-3(lines 7407 7409) the Hoare annotation is: true [2022-11-16 12:32:18,574 INFO L899 garLoopResultBuilder]: For program point L7407-2(lines 7407 7409) no Hoare annotation was computed. [2022-11-16 12:32:18,574 INFO L899 garLoopResultBuilder]: For program point memset_override_0_implEXIT(lines 7397 7412) no Hoare annotation was computed. [2022-11-16 12:32:18,574 INFO L902 garLoopResultBuilder]: At program point L7398(line 7398) the Hoare annotation is: true [2022-11-16 12:32:18,575 INFO L899 garLoopResultBuilder]: For program point L7400(line 7400) no Hoare annotation was computed. [2022-11-16 12:32:18,575 INFO L902 garLoopResultBuilder]: At program point L7398-1(line 7398) the Hoare annotation is: true [2022-11-16 12:32:18,575 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedEXIT(lines 2586 2594) no Hoare annotation was computed. [2022-11-16 12:32:18,575 INFO L899 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2022-11-16 12:32:18,575 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedFINAL(lines 2586 2594) no Hoare annotation was computed. [2022-11-16 12:32:18,575 INFO L895 garLoopResultBuilder]: At program point aws_mul_size_checkedENTRY(lines 2586 2594) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,576 INFO L895 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: (let ((.cse0 (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|)) (.cse1 (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|)) (.cse2 (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|)) (.cse3 (= |old(#valid)| |#valid|)) (.cse4 (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (<= (+ |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 1) 0) .cse2 .cse3 .cse4 .cse5) (not .cse5) (and (= (* |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_#in~a#1|) (select (select |#memory_int| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset|)) .cse0 (= ~tl_last_error~0 |old(~tl_last_error~0)|) .cse1 .cse2 .cse3 .cse4 .cse5))) [2022-11-16 12:32:18,576 INFO L895 garLoopResultBuilder]: At program point L2498(line 2498) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-16 12:32:18,576 INFO L899 garLoopResultBuilder]: For program point L2499-1(line 2499) no Hoare annotation was computed. [2022-11-16 12:32:18,576 INFO L895 garLoopResultBuilder]: At program point L2499(line 2499) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-16 12:32:18,576 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-16 12:32:18,577 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-16 12:32:18,577 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-16 12:32:18,577 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,577 INFO L902 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~VOIDENTRY(line -1) the Hoare annotation is: true [2022-11-16 12:32:18,577 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,577 INFO L899 garLoopResultBuilder]: For program point L6852(line 6852) no Hoare annotation was computed. [2022-11-16 12:32:18,578 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,578 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2022-11-16 12:32:18,578 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2022-11-16 12:32:18,578 INFO L902 garLoopResultBuilder]: At program point hash_table_state_is_validENTRY(lines 10026 10073) the Hoare annotation is: true [2022-11-16 12:32:18,578 INFO L899 garLoopResultBuilder]: For program point L10028(lines 10028 10032) no Hoare annotation was computed. [2022-11-16 12:32:18,578 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validEXIT(lines 10026 10073) no Hoare annotation was computed. [2022-11-16 12:32:18,578 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validFINAL(lines 10026 10073) no Hoare annotation was computed. [2022-11-16 12:32:18,579 INFO L899 garLoopResultBuilder]: For program point L10054-1(line 10054) no Hoare annotation was computed. [2022-11-16 12:32:18,579 INFO L902 garLoopResultBuilder]: At program point L10054(line 10054) the Hoare annotation is: true [2022-11-16 12:32:18,579 INFO L902 garLoopResultBuilder]: At program point my_memsetENTRY(lines 7414 7416) the Hoare annotation is: true [2022-11-16 12:32:18,579 INFO L899 garLoopResultBuilder]: For program point my_memsetFINAL(lines 7414 7416) no Hoare annotation was computed. [2022-11-16 12:32:18,579 INFO L899 garLoopResultBuilder]: For program point L7415-1(line 7415) no Hoare annotation was computed. [2022-11-16 12:32:18,579 INFO L902 garLoopResultBuilder]: At program point L7415(line 7415) the Hoare annotation is: true [2022-11-16 12:32:18,579 INFO L899 garLoopResultBuilder]: For program point my_memsetEXIT(lines 7414 7416) no Hoare annotation was computed. [2022-11-16 12:32:18,580 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-16 12:32:18,580 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-16 12:32:18,580 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-16 12:32:18,580 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-16 12:32:18,580 INFO L895 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) [2022-11-16 12:32:18,580 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2022-11-16 12:32:18,580 INFO L899 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2022-11-16 12:32:18,581 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2022-11-16 12:32:18,581 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6950 6952) no Hoare annotation was computed. [2022-11-16 12:32:18,581 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6950 6952) no Hoare annotation was computed. [2022-11-16 12:32:18,581 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6950 6952) the Hoare annotation is: true [2022-11-16 12:32:18,581 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_multENTRY(lines 253 256) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,581 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multEXIT(lines 253 256) no Hoare annotation was computed. [2022-11-16 12:32:18,582 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multFINAL(lines 253 256) no Hoare annotation was computed. [2022-11-16 12:32:18,582 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoFINAL(lines 2626 2631) no Hoare annotation was computed. [2022-11-16 12:32:18,582 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoEXIT(lines 2626 2631) no Hoare annotation was computed. [2022-11-16 12:32:18,582 INFO L902 garLoopResultBuilder]: At program point aws_is_power_of_twoENTRY(lines 2626 2631) the Hoare annotation is: true [2022-11-16 12:32:18,582 INFO L895 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: (let ((.cse0 (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|)) (.cse1 (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|)) (.cse2 (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|)) (.cse3 (= |old(#valid)| |#valid|)) (.cse4 (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) (or (not (< 0 |#StackHeapBarrier|)) (and .cse0 .cse1 .cse2 (<= (+ |aws_add_size_checked_aws_add_u64_checked_#res#1| 1) 0) .cse3 .cse4) (and .cse0 (= (select (select |#memory_int| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset|) (+ |aws_add_size_checked_#in~b#1| |aws_add_size_checked_#in~a#1|)) .cse1 .cse2 .cse3 .cse4))) [2022-11-16 12:32:18,582 INFO L895 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 12:32:18,583 INFO L895 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) [2022-11-16 12:32:18,583 INFO L899 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2022-11-16 12:32:18,583 INFO L895 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: (or (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|)) (not (< 0 |#StackHeapBarrier|))) [2022-11-16 12:32:18,583 INFO L899 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2022-11-16 12:32:18,583 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2022-11-16 12:32:18,583 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2022-11-16 12:32:18,584 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-11-16 12:32:18,584 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-16 12:32:18,584 INFO L899 garLoopResultBuilder]: For program point L9276(lines 9276 9278) no Hoare annotation was computed. [2022-11-16 12:32:18,584 INFO L895 garLoopResultBuilder]: At program point L9276-2(lines 9276 9278) the Hoare annotation is: false [2022-11-16 12:32:18,584 INFO L899 garLoopResultBuilder]: For program point L6815-3(line 6815) no Hoare annotation was computed. [2022-11-16 12:32:18,585 INFO L895 garLoopResultBuilder]: At program point L6815-2(line 6815) the Hoare annotation is: (let ((.cse0 (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (.cse1 (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|))) (.cse2 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|)) (.cse3 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (.cse4 (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1)) (.cse5 (< 0 |#StackHeapBarrier|))) (or (and .cse0 (<= (+ |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 1) 0) .cse1 .cse2 .cse3 .cse4 .cse5) (let ((.cse6 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|))) (and .cse0 .cse1 (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= (mod (+ (* 23 .cse6) 8) 24) 0) .cse2 .cse3 (<= (mod (div (+ (- 29629528) (- .cse6)) (- 24)) 18446744073709551616) 8) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) .cse4 .cse5 (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8))))) [2022-11-16 12:32:18,585 INFO L899 garLoopResultBuilder]: For program point L6840-1(line 6840) no Hoare annotation was computed. [2022-11-16 12:32:18,585 INFO L895 garLoopResultBuilder]: At program point L6840(line 6840) the Hoare annotation is: false [2022-11-16 12:32:18,585 INFO L899 garLoopResultBuilder]: For program point L9276-3(lines 9276 9278) no Hoare annotation was computed. [2022-11-16 12:32:18,585 INFO L895 garLoopResultBuilder]: At program point L9945(line 9945) the Hoare annotation is: false [2022-11-16 12:32:18,585 INFO L899 garLoopResultBuilder]: For program point L9945-1(line 9945) no Hoare annotation was computed. [2022-11-16 12:32:18,586 INFO L899 garLoopResultBuilder]: For program point L7179-1(line 7179) no Hoare annotation was computed. [2022-11-16 12:32:18,586 INFO L895 garLoopResultBuilder]: At program point L7179(line 7179) the Hoare annotation is: false [2022-11-16 12:32:18,586 INFO L899 garLoopResultBuilder]: For program point L9285(lines 9285 9287) no Hoare annotation was computed. [2022-11-16 12:32:18,586 INFO L895 garLoopResultBuilder]: At program point L9954(line 9954) the Hoare annotation is: false [2022-11-16 12:32:18,586 INFO L899 garLoopResultBuilder]: For program point L6816-1(line 6816) no Hoare annotation was computed. [2022-11-16 12:32:18,587 INFO L895 garLoopResultBuilder]: At program point L6816(line 6816) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|))) (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= (mod (+ (* 23 .cse0) 8) 24) 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= (mod (+ (* 23 |ULTIMATE.start_ensure_allocated_hash_table_#t~mem549#1|) 8) 24) 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (<= (mod (div (+ (- 29629528) (- .cse0)) (- 24)) 18446744073709551616) 8) (<= (mod (div (+ (- 29629528) (- |ULTIMATE.start_ensure_allocated_hash_table_#t~mem549#1|)) (- 24)) 18446744073709551616) 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2022-11-16 12:32:18,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,587 INFO L899 garLoopResultBuilder]: For program point L9954-1(line 9954) no Hoare annotation was computed. [2022-11-16 12:32:18,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,587 INFO L899 garLoopResultBuilder]: For program point L6841-1(line 6841) no Hoare annotation was computed. [2022-11-16 12:32:18,587 INFO L895 garLoopResultBuilder]: At program point L6841(line 6841) the Hoare annotation is: false [2022-11-16 12:32:18,587 INFO L899 garLoopResultBuilder]: For program point L9938(line 9938) no Hoare annotation was computed. [2022-11-16 12:32:18,588 INFO L895 garLoopResultBuilder]: At program point L6833(lines 6831 6834) the Hoare annotation is: false [2022-11-16 12:32:18,588 INFO L902 garLoopResultBuilder]: At program point L10161(line 10161) the Hoare annotation is: true [2022-11-16 12:32:18,588 INFO L899 garLoopResultBuilder]: For program point L9938-2(lines 9938 9951) no Hoare annotation was computed. [2022-11-16 12:32:18,588 INFO L899 garLoopResultBuilder]: For program point L7180-1(line 7180) no Hoare annotation was computed. [2022-11-16 12:32:18,588 INFO L899 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2022-11-16 12:32:18,588 INFO L899 garLoopResultBuilder]: For program point L9938-3(lines 9938 9951) no Hoare annotation was computed. [2022-11-16 12:32:18,588 INFO L895 garLoopResultBuilder]: At program point L7180(line 7180) the Hoare annotation is: false [2022-11-16 12:32:18,589 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-11-16 12:32:18,589 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-11-16 12:32:18,589 INFO L899 garLoopResultBuilder]: For program point L9278-1(line 9278) no Hoare annotation was computed. [2022-11-16 12:32:18,589 INFO L899 garLoopResultBuilder]: For program point L9947(lines 9947 9949) no Hoare annotation was computed. [2022-11-16 12:32:18,589 INFO L895 garLoopResultBuilder]: At program point L10145(line 10145) the Hoare annotation is: false [2022-11-16 12:32:18,589 INFO L895 garLoopResultBuilder]: At program point L10145-1(line 10145) the Hoare annotation is: false [2022-11-16 12:32:18,590 INFO L899 garLoopResultBuilder]: For program point L10145-2(line 10145) no Hoare annotation was computed. [2022-11-16 12:32:18,590 INFO L895 garLoopResultBuilder]: At program point L9278(line 9278) the Hoare annotation is: false [2022-11-16 12:32:18,590 INFO L899 garLoopResultBuilder]: For program point L6809(lines 6809 6819) no Hoare annotation was computed. [2022-11-16 12:32:18,590 INFO L899 garLoopResultBuilder]: For program point L9939-1(lines 9939 9950) no Hoare annotation was computed. [2022-11-16 12:32:18,590 INFO L895 garLoopResultBuilder]: At program point L10154(line 10154) the Hoare annotation is: false [2022-11-16 12:32:18,590 INFO L895 garLoopResultBuilder]: At program point L9939-3(lines 9939 9950) the Hoare annotation is: false [2022-11-16 12:32:18,590 INFO L895 garLoopResultBuilder]: At program point L9939-4(lines 9939 9950) the Hoare annotation is: false [2022-11-16 12:32:18,591 INFO L895 garLoopResultBuilder]: At program point L9295(lines 9295 9297) the Hoare annotation is: false [2022-11-16 12:32:18,591 INFO L899 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2022-11-16 12:32:18,591 INFO L899 garLoopResultBuilder]: For program point L9295-1(lines 9295 9297) no Hoare annotation was computed. [2022-11-16 12:32:18,591 INFO L895 garLoopResultBuilder]: At program point L7181(line 7181) the Hoare annotation is: false [2022-11-16 12:32:18,591 INFO L899 garLoopResultBuilder]: For program point L10154-1(line 10154) no Hoare annotation was computed. [2022-11-16 12:32:18,591 INFO L895 garLoopResultBuilder]: At program point L9948(line 9948) the Hoare annotation is: false [2022-11-16 12:32:18,591 INFO L899 garLoopResultBuilder]: For program point L9948-1(line 9948) no Hoare annotation was computed. [2022-11-16 12:32:18,592 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-16 12:32:18,592 INFO L895 garLoopResultBuilder]: At program point L6843(lines 6837 6844) the Hoare annotation is: false [2022-11-16 12:32:18,592 INFO L899 garLoopResultBuilder]: For program point L6810-1(line 6810) no Hoare annotation was computed. [2022-11-16 12:32:18,592 INFO L895 garLoopResultBuilder]: At program point L9957(line 9957) the Hoare annotation is: false [2022-11-16 12:32:18,592 INFO L895 garLoopResultBuilder]: At program point L9957-1(line 9957) the Hoare annotation is: false [2022-11-16 12:32:18,592 INFO L895 garLoopResultBuilder]: At program point L10147(line 10147) the Hoare annotation is: false [2022-11-16 12:32:18,593 INFO L899 garLoopResultBuilder]: For program point L9957-2(line 9957) no Hoare annotation was computed. [2022-11-16 12:32:18,593 INFO L899 garLoopResultBuilder]: For program point L10147-1(line 10147) no Hoare annotation was computed. [2022-11-16 12:32:18,593 INFO L895 garLoopResultBuilder]: At program point L6811-1(line 6811) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-16 12:32:18,593 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-16 12:32:18,593 INFO L899 garLoopResultBuilder]: For program point L9941(lines 9941 9943) no Hoare annotation was computed. [2022-11-16 12:32:18,593 INFO L895 garLoopResultBuilder]: At program point L9272(lines 9272 9298) the Hoare annotation is: false [2022-11-16 12:32:18,594 INFO L899 garLoopResultBuilder]: For program point L9933(lines 9933 9958) no Hoare annotation was computed. [2022-11-16 12:32:18,594 INFO L895 garLoopResultBuilder]: At program point L10156(lines 10156 10158) the Hoare annotation is: false [2022-11-16 12:32:18,594 INFO L899 garLoopResultBuilder]: For program point L10156-1(lines 10156 10158) no Hoare annotation was computed. [2022-11-16 12:32:18,594 INFO L899 garLoopResultBuilder]: For program point L7175(lines 7175 7183) no Hoare annotation was computed. [2022-11-16 12:32:18,594 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,594 INFO L899 garLoopResultBuilder]: For program point L6812-1(line 6812) no Hoare annotation was computed. [2022-11-16 12:32:18,594 INFO L895 garLoopResultBuilder]: At program point L6812(line 6812) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-16 12:32:18,595 INFO L895 garLoopResultBuilder]: At program point L9273(lines 9273 9275) the Hoare annotation is: false [2022-11-16 12:32:18,595 INFO L899 garLoopResultBuilder]: For program point L9273-1(lines 9273 9275) no Hoare annotation was computed. [2022-11-16 12:32:18,595 INFO L895 garLoopResultBuilder]: At program point L9934-1(line 9934) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|))) (and (not (= .cse0 |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) |ULTIMATE.start_aws_hash_table_clean_up_~state~4#1.offset|) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (not (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#empty_slot_idx~1#1.base|)) (not (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_hash_table_state_has_an_empty_slot_~rval#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base| |ULTIMATE.start_aws_hash_table_clean_up_~map#1.base|) (= |ULTIMATE.start_aws_hash_table_clean_up_~map#1.offset| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_#t~ret1244#1| 0) (= .cse0 |ULTIMATE.start_aws_hash_table_clean_up_~state~4#1.base|) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clean_up_harness_~#map~0#1.base|) 1) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_table_clean_up_~map#1.base|) |ULTIMATE.start_aws_hash_table_clean_up_~map#1.offset|) 0)) (< 0 |#StackHeapBarrier|))) [2022-11-16 12:32:18,595 INFO L899 garLoopResultBuilder]: For program point L9934-2(line 9934) no Hoare annotation was computed. [2022-11-16 12:32:18,595 INFO L895 garLoopResultBuilder]: At program point L9290(line 9290) the Hoare annotation is: false [2022-11-16 12:32:18,596 INFO L895 garLoopResultBuilder]: At program point L9934(line 9934) the Hoare annotation is: false [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point L7176(lines 7176 7182) no Hoare annotation was computed. [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point L9290-1(line 9290) no Hoare annotation was computed. [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point L6821(lines 6821 6828) no Hoare annotation was computed. [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point L10141(lines 10141 10160) no Hoare annotation was computed. [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:32:18,596 INFO L899 garLoopResultBuilder]: For program point L7185(lines 7185 7187) no Hoare annotation was computed. [2022-11-16 12:32:18,597 INFO L895 garLoopResultBuilder]: At program point L6822(line 6822) the Hoare annotation is: false [2022-11-16 12:32:18,597 INFO L899 garLoopResultBuilder]: For program point L6822-1(line 6822) no Hoare annotation was computed. [2022-11-16 12:32:18,597 INFO L899 garLoopResultBuilder]: For program point L6839-1(line 6839) no Hoare annotation was computed. [2022-11-16 12:32:18,597 INFO L895 garLoopResultBuilder]: At program point L6839(line 6839) the Hoare annotation is: false [2022-11-16 12:32:18,597 INFO L899 garLoopResultBuilder]: For program point L9944(lines 9944 9946) no Hoare annotation was computed. [2022-11-16 12:32:18,597 INFO L899 garLoopResultBuilder]: For program point L9944-2(lines 9944 9946) no Hoare annotation was computed. [2022-11-16 12:32:18,597 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-16 12:32:18,598 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-16 12:32:18,598 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-16 12:32:18,598 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-16 12:32:18,598 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-16 12:32:18,598 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-16 12:32:18,602 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:18,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:32:18,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:32:18 BoogieIcfgContainer [2022-11-16 12:32:18,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:32:18,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:32:18,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:32:18,622 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:32:18,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:09" (3/4) ... [2022-11-16 12:32:18,625 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:32:18,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-16 12:32:18,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2022-11-16 12:32:18,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2022-11-16 12:32:18,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2022-11-16 12:32:18,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_override_0_impl [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2022-11-16 12:32:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2022-11-16 12:32:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2022-11-16 12:32:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2022-11-16 12:32:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-16 12:32:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:32:18,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-16 12:32:18,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2022-11-16 12:32:18,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 161 nodes and edges [2022-11-16 12:32:18,649 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2022-11-16 12:32:18,650 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-16 12:32:18,651 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 12:32:18,652 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 12:32:18,653 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:32:18,654 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:32:18,655 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:32:18,685 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((r == r && \old(a) == a) && \result + 1 <= 0) && \old(b) == b) && \old(\valid) == \valid) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && r == r) && tl_last_error == \old(tl_last_error)) && \old(a) == a) && \old(b) == b) && \old(\valid) == \valid) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-16 12:32:18,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 < unknown-#StackHeapBarrier-unknown) || (((((\old(b) == b && r == r) && r == r) && \result + 1 <= 0) && \old(\valid) == \valid) && \old(a) == a)) || (((((\old(b) == b && unknown-#memory_int-unknown[r][r] == \old(b) + \old(a)) && r == r) && r == r) && \old(\valid) == \valid) && \old(a) == a) [2022-11-16 12:32:19,275 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:32:19,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:32:19,276 INFO L158 Benchmark]: Toolchain (without parser) took 555679.31ms. Allocated memory was 90.2MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 56.3MB in the beginning and 736.0MB in the end (delta: -679.7MB). Peak memory consumption was 753.6MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,276 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:19,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3944.41ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 56.2MB in the beginning and 106.8MB in the end (delta: -50.5MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 275.87ms. Allocated memory is still 184.5MB. Free memory was 106.8MB in the beginning and 95.4MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,277 INFO L158 Benchmark]: Boogie Preprocessor took 110.28ms. Allocated memory is still 184.5MB. Free memory was 95.4MB in the beginning and 88.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,278 INFO L158 Benchmark]: RCFGBuilder took 1805.22ms. Allocated memory is still 184.5MB. Free memory was 88.0MB in the beginning and 87.0MB in the end (delta: 1.0MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,278 INFO L158 Benchmark]: TraceAbstraction took 548877.36ms. Allocated memory was 184.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 85.9MB in the beginning and 859.8MB in the end (delta: -773.8MB). Peak memory consumption was 564.2MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,278 INFO L158 Benchmark]: Witness Printer took 653.62ms. Allocated memory is still 1.5GB. Free memory was 859.8MB in the beginning and 736.0MB in the end (delta: 123.7MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2022-11-16 12:32:19,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3944.41ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 56.2MB in the beginning and 106.8MB in the end (delta: -50.5MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 275.87ms. Allocated memory is still 184.5MB. Free memory was 106.8MB in the beginning and 95.4MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.28ms. Allocated memory is still 184.5MB. Free memory was 95.4MB in the beginning and 88.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1805.22ms. Allocated memory is still 184.5MB. Free memory was 88.0MB in the beginning and 87.0MB in the end (delta: 1.0MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * TraceAbstraction took 548877.36ms. Allocated memory was 184.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 85.9MB in the beginning and 859.8MB in the end (delta: -773.8MB). Peak memory consumption was 564.2MB. Max. memory is 16.1GB. * Witness Printer took 653.62ms. Allocated memory is still 1.5GB. Free memory was 859.8MB in the beginning and 736.0MB in the end (delta: 123.7MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 20 procedures, 192 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 548.8s, OverallIterations: 16, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2887 SdHoareTripleChecker+Valid, 14.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2743 mSDsluCounter, 14555 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 59 IncrementalHoareTripleChecker+Unchecked, 12160 mSDsCounter, 1520 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12623 IncrementalHoareTripleChecker+Invalid, 14202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1520 mSolverCounterUnsat, 2395 mSDtfsCounter, 12623 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2531 GetRequests, 2251 SyntacticMatches, 1 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=14, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 205 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 647 PreInvPairs, 679 NumberOfFragments, 882 HoareAnnotationTreeSize, 647 FomulaSimplifications, 1444 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 75 FomulaSimplificationsInter, 1018 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 18.3s SatisfiabilityAnalysisTime, 505.1s InterpolantComputationTime, 3524 NumberOfCodeBlocks, 3524 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3555 ConstructedInterpolants, 4 QuantifiedInterpolants, 7164 SizeOfPredicates, 61 NumberOfNonLiveVariables, 17882 ConjunctsInSsa, 191 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 5356/5422 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7407]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant Derived loop invariant: (((((((r == r && \old(a) == a) && \result + 1 <= 0) && \old(b) == b) && \old(\valid) == \valid) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && r == r) && tl_last_error == \old(tl_last_error)) && \old(a) == a) && \old(b) == b) && \old(\valid) == \valid) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: (!(0 < unknown-#StackHeapBarrier-unknown) || (((((\old(b) == b && r == r) && r == r) && \result + 1 <= 0) && \old(\valid) == \valid) && \old(a) == a)) || (((((\old(b) == b && unknown-#memory_int-unknown[r][r] == \old(b) + \old(a)) && r == r) && r == r) && \old(\valid) == \valid) && \old(a) == a) - InvariantResult [Line: 10161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9272]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 12:32:19,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe2d031-2aa4-4a9b-8a0a-e3a23a683d44/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE