./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:32:43,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:32:43,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:32:43,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:32:43,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:32:43,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:32:43,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:32:43,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:32:43,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:32:43,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:32:43,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:32:43,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:32:43,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:32:43,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:32:43,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:32:43,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:32:43,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:32:43,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:32:43,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:32:43,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:32:43,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:32:43,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:32:43,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:32:43,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:32:43,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:32:43,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:32:43,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:32:43,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:32:43,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:32:43,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:32:43,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:32:43,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:32:43,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:32:43,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:32:43,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:32:43,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:32:43,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:32:43,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:32:43,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:32:43,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:32:43,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:32:43,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:32:43,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:32:43,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:32:43,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:32:43,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:32:43,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:32:43,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:32:43,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:32:43,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:32:43,191 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:32:43,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:32:43,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:32:43,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:32:43,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:32:43,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:32:43,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:32:43,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:32:43,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:32:43,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:32:43,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:32:43,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:32:43,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:32:43,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:43,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:32:43,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:32:43,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:32:43,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:32:43,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:32:43,197 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:32:43,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:32:43,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:32:43,198 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_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-11-18 20:32:43,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:32:43,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:32:43,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:32:43,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:32:43,494 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:32:43,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-18 20:32:43,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/6ab8f00de/8c2cab98538742de88f68d16578a3e26/FLAGddabb1d03 [2022-11-18 20:32:44,356 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:32:44,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-18 20:32:44,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/6ab8f00de/8c2cab98538742de88f68d16578a3e26/FLAGddabb1d03 [2022-11-18 20:32:44,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/6ab8f00de/8c2cab98538742de88f68d16578a3e26 [2022-11-18 20:32:44,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:32:44,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:32:44,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:44,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:32:44,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:32:44,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:44" (1/1) ... [2022-11-18 20:32:44,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2acf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:44, skipping insertion in model container [2022-11-18 20:32:44,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:44" (1/1) ... [2022-11-18 20:32:44,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:32:44,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:32:44,984 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-18 20:32:44,992 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-18 20:32:45,838 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:32:45,921 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,922 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,923 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,924 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,925 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,938 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,939 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,942 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,942 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,945 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,946 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,947 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:45,947 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,358 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:32:46,359 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:32:46,361 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:32:46,362 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:32:46,364 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:32:46,365 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:32:46,366 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:32:46,367 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:32:46,368 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:32:46,368 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:32:46,542 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,549 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:46,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:32:46,681 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-18 20:32:46,682 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-18 20:32:46,714 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:32:46,730 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,730 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,731 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,731 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,732 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,740 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,740 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,742 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,742 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,744 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,745 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,745 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,746 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:32:46,783 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:32:46,784 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:32:46,785 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:32:46,787 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:32:46,787 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:32:46,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:32:46,789 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:32:46,789 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:32:46,790 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:32:46,820 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,825 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:32:46,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:47,072 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:32:47,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47 WrapperNode [2022-11-18 20:32:47,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:47,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:47,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:32:47,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:32:47,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,310 INFO L138 Inliner]: procedures = 691, calls = 1699, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 615 [2022-11-18 20:32:47,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:47,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:32:47,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:32:47,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:32:47,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:32:47,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:32:47,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:32:47,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:32:47,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (1/1) ... [2022-11-18 20:32:47,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:47,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:47,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:32:47,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:32:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:32:47,535 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 20:32:47,535 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 20:32:47,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 20:32:47,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 20:32:47,538 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:32:47,539 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:32:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:32:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 20:32:47,539 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 20:32:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:32:47,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:32:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:32:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:32:47,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:32:47,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:32:47,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:32:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:32:47,542 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:32:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-18 20:32:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-18 20:32:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 20:32:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 20:32:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 20:32:47,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 20:32:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:32:47,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:32:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-18 20:32:47,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-18 20:32:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:32:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:32:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:32:47,548 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:32:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:32:47,548 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 20:32:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 20:32:47,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:32:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-18 20:32:47,549 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-18 20:32:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-18 20:32:47,550 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-18 20:32:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:32:47,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:32:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:32:47,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:32:47,912 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:32:49,108 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:32:49,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:32:49,116 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:32:49,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:49 BoogieIcfgContainer [2022-11-18 20:32:49,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:32:49,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:32:49,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:32:49,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:32:49,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:32:44" (1/3) ... [2022-11-18 20:32:49,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12021f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:49, skipping insertion in model container [2022-11-18 20:32:49,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:47" (2/3) ... [2022-11-18 20:32:49,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12021f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:49, skipping insertion in model container [2022-11-18 20:32:49,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:49" (3/3) ... [2022-11-18 20:32:49,129 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-11-18 20:32:49,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:32:49,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:32:49,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:32:49,235 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;@bcf7816, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:32:49,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:32:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 103 states have (on average 1.203883495145631) internal successors, (124), 104 states have internal predecessors, (124), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-18 20:32:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:32:49,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:49,260 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:49,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:49,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1276829709, now seen corresponding path program 1 times [2022-11-18 20:32:49,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:49,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597703268] [2022-11-18 20:32:49,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:49,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:32:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:32:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:32:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:32:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:32:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:32:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:32:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:32:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:32:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:32:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:32:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:32:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:32:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 20:32:50,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:50,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597703268] [2022-11-18 20:32:50,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597703268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:50,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:50,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:32:50,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206188592] [2022-11-18 20:32:50,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:50,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:32:50,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:50,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:32:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:32:50,259 INFO L87 Difference]: Start difference. First operand has 169 states, 103 states have (on average 1.203883495145631) internal successors, (124), 104 states have internal predecessors, (124), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:32:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:51,099 INFO L93 Difference]: Finished difference Result 364 states and 532 transitions. [2022-11-18 20:32:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:32:51,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-18 20:32:51,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:51,113 INFO L225 Difference]: With dead ends: 364 [2022-11-18 20:32:51,113 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 20:32:51,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:32:51,121 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 112 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:51,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 204 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:32:51,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 20:32:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 164. [2022-11-18 20:32:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 99 states have (on average 1.1818181818181819) internal successors, (117), 100 states have internal predecessors, (117), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-18 20:32:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 212 transitions. [2022-11-18 20:32:51,183 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 212 transitions. Word has length 84 [2022-11-18 20:32:51,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:51,184 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 212 transitions. [2022-11-18 20:32:51,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:32:51,184 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 212 transitions. [2022-11-18 20:32:51,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:32:51,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:51,187 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:51,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:32:51,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1354789231, now seen corresponding path program 1 times [2022-11-18 20:32:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:51,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926857386] [2022-11-18 20:32:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:32:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:32:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:32:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:32:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:32:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:32:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:32:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:32:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:32:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:32:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:32:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:32:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:32:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-18 20:32:51,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:51,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926857386] [2022-11-18 20:32:51,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926857386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:32:51,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238662841] [2022-11-18 20:32:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:51,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:51,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:51,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:51,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:32:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:52,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:32:52,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 20:32:52,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:32:52,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238662841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:52,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:32:52,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-18 20:32:52,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163954313] [2022-11-18 20:32:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:52,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:52,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:32:52,552 INFO L87 Difference]: Start difference. First operand 164 states and 212 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:32:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:52,872 INFO L93 Difference]: Finished difference Result 293 states and 387 transitions. [2022-11-18 20:32:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:52,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-11-18 20:32:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:52,882 INFO L225 Difference]: With dead ends: 293 [2022-11-18 20:32:52,883 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 20:32:52,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:32:52,886 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 223 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:52,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 628 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:32:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 20:32:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-18 20:32:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2022-11-18 20:32:52,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2022-11-18 20:32:52,929 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 84 [2022-11-18 20:32:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:52,930 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2022-11-18 20:32:52,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:32:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2022-11-18 20:32:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:32:52,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:52,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:52,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:53,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:53,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1275658481, now seen corresponding path program 1 times [2022-11-18 20:32:53,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:53,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502937709] [2022-11-18 20:32:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:53,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:53,242 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:32:53,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217631334] [2022-11-18 20:32:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:53,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:53,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:53,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:53,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:32:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:53,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:32:53,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:32:53,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:32:53,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:53,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502937709] [2022-11-18 20:32:53,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:32:53,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217631334] [2022-11-18 20:32:53,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217631334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:53,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:53,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:32:53,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564241233] [2022-11-18 20:32:53,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:53,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:32:53,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:32:53,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:32:53,881 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:32:54,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:54,371 INFO L93 Difference]: Finished difference Result 285 states and 376 transitions. [2022-11-18 20:32:54,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:32:54,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-11-18 20:32:54,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:54,374 INFO L225 Difference]: With dead ends: 285 [2022-11-18 20:32:54,374 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 20:32:54,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:32:54,376 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 229 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:54,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 849 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:32:54,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 20:32:54,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-18 20:32:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2022-11-18 20:32:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2022-11-18 20:32:54,396 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 99 [2022-11-18 20:32:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:54,396 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2022-11-18 20:32:54,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:32:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2022-11-18 20:32:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:32:54,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:54,399 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:54,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:54,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:54,609 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:54,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash -170213077, now seen corresponding path program 2 times [2022-11-18 20:32:54,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:54,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896042744] [2022-11-18 20:32:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:54,683 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:32:54,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336773156] [2022-11-18 20:32:54,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:32:54,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:54,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:54,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:32:55,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:32:55,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:32:55,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-18 20:32:55,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:56,306 INFO L321 Elim1Store]: treesize reduction 124, result has 50.2 percent of original size [2022-11-18 20:32:56,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 32 select indices, 32 select index equivalence classes, 465 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 31 case distinctions, treesize of input 161 treesize of output 221 [2022-11-18 20:32:57,984 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 31 dual juncts. [2022-11-18 20:32:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:57,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896042744] [2022-11-18 20:32:57,985 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:32:57,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336773156] [2022-11-18 20:32:57,986 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 20:32:58,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:58,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:58,201 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-18 20:32:58,210 INFO L158 Benchmark]: Toolchain (without parser) took 13759.24ms. Allocated memory was 94.4MB in the beginning and 318.8MB in the end (delta: 224.4MB). Free memory was 54.4MB in the beginning and 256.7MB in the end (delta: -202.3MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,211 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 94.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:32:58,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2618.09ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 54.2MB in the beginning and 137.1MB in the end (delta: -82.9MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.02ms. Allocated memory is still 186.6MB. Free memory was 137.1MB in the beginning and 127.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,214 INFO L158 Benchmark]: Boogie Preprocessor took 135.23ms. Allocated memory is still 186.6MB. Free memory was 127.6MB in the beginning and 121.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,217 INFO L158 Benchmark]: RCFGBuilder took 1669.99ms. Allocated memory is still 186.6MB. Free memory was 121.3MB in the beginning and 64.3MB in the end (delta: 57.0MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,217 INFO L158 Benchmark]: TraceAbstraction took 9088.22ms. Allocated memory was 186.6MB in the beginning and 318.8MB in the end (delta: 132.1MB). Free memory was 63.2MB in the beginning and 256.7MB in the end (delta: -193.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2022-11-18 20:32:58,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 94.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2618.09ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 54.2MB in the beginning and 137.1MB in the end (delta: -82.9MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.02ms. Allocated memory is still 186.6MB. Free memory was 137.1MB in the beginning and 127.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 135.23ms. Allocated memory is still 186.6MB. Free memory was 127.6MB in the beginning and 121.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1669.99ms. Allocated memory is still 186.6MB. Free memory was 121.3MB in the beginning and 64.3MB in the end (delta: 57.0MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9088.22ms. Allocated memory was 186.6MB in the beginning and 318.8MB in the end (delta: 132.1MB). Free memory was 63.2MB in the beginning and 256.7MB in the end (delta: -193.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 20:32:58,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:33:00,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:33:00,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:33:00,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:33:00,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:33:00,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:33:00,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:33:00,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:33:00,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:33:00,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:33:00,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:33:00,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:33:00,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:33:00,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:33:00,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:33:00,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:33:00,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:33:00,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:33:00,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:33:00,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:33:00,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:33:00,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:33:00,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:33:00,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:33:00,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:33:00,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:33:00,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:33:00,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:33:00,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:33:00,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:33:00,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:33:00,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:33:00,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:33:00,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:33:00,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:33:00,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:33:00,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:33:00,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:33:00,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:33:00,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:33:00,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:33:00,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 20:33:00,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:33:00,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:33:00,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:33:00,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:33:00,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:33:00,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:33:00,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:33:00,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:33:00,729 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:33:00,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:33:00,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:33:00,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:33:00,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:33:00,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:33:00,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:33:00,732 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:33:00,732 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:33:00,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:33:00,732 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:33:00,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:33:00,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:33:00,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:33:00,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:33:00,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:00,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:33:00,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:33:00,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:33:00,734 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:33:00,735 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:33:00,735 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:33:00,735 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:33:00,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:33:00,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:33:00,736 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-11-18 20:33:01,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:33:01,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:33:01,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:33:01,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:33:01,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:33:01,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-18 20:33:01,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/3ef6ea9a9/53f4a173bf40461f90204ade15963ccb/FLAGb37aefd9a [2022-11-18 20:33:02,065 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:33:02,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-18 20:33:02,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/3ef6ea9a9/53f4a173bf40461f90204ade15963ccb/FLAGb37aefd9a [2022-11-18 20:33:02,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/data/3ef6ea9a9/53f4a173bf40461f90204ade15963ccb [2022-11-18 20:33:02,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:33:02,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:33:02,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:02,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:33:02,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:33:02,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:02" (1/1) ... [2022-11-18 20:33:02,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413b192d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:02, skipping insertion in model container [2022-11-18 20:33:02,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:02" (1/1) ... [2022-11-18 20:33:02,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:33:02,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:33:03,006 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-18 20:33:03,013 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-18 20:33:03,934 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:33:04,009 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,010 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,010 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,011 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,012 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,025 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,026 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,027 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,028 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,030 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,032 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,032 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,033 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:33:04,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:33:04,424 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:33:04,425 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:33:04,427 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:33:04,428 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:33:04,428 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:33:04,429 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:33:04,430 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:33:04,431 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:33:04,614 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,622 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:04,769 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 20:33:04,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:33:04,856 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-18 20:33:04,857 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-18 20:33:04,889 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:33:04,903 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,904 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,904 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,905 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,905 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,912 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,913 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,914 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,915 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,916 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,917 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,918 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,918 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:04,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:33:04,955 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:33:04,956 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:33:04,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:33:04,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:33:04,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:33:04,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:33:04,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:33:04,960 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:33:04,960 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:33:05,012 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,017 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:05,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:33:05,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-18 20:33:05,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-18 20:33:05,123 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:33:05,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,146 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,146 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,147 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,153 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,154 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,155 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,156 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,156 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,157 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,158 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,158 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:33:05,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:33:05,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:33:05,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:33:05,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:33:05,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:33:05,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:33:05,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:33:05,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:33:05,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:33:05,241 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,246 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:33:05,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:05,492 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:33:05,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05 WrapperNode [2022-11-18 20:33:05,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:05,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:05,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:33:05,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:33:05,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,691 INFO L138 Inliner]: procedures = 711, calls = 1699, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 613 [2022-11-18 20:33:05,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:05,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:33:05,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:33:05,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:33:05,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:33:05,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:33:05,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:33:05,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:33:05,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (1/1) ... [2022-11-18 20:33:05,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:05,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:05,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:05,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:33:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:33:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 20:33:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 20:33:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 20:33:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 20:33:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:33:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:33:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:33:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 20:33:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 20:33:05,928 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 20:33:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 20:33:05,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:33:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:33:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:33:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:33:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:33:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:33:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:33:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:33:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:33:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 20:33:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-18 20:33:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-18 20:33:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 20:33:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 20:33:05,931 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 20:33:05,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 20:33:05,931 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 20:33:05,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:33:05,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:33:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-18 20:33:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-18 20:33:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:33:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:33:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 20:33:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 20:33:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:33:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:33:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:33:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 20:33:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 20:33:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-18 20:33:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-18 20:33:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-18 20:33:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-18 20:33:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:33:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:33:06,365 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:33:06,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:33:08,737 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:33:08,752 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:33:08,755 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:33:08,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:08 BoogieIcfgContainer [2022-11-18 20:33:08,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:33:08,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:33:08,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:33:08,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:33:08,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:33:02" (1/3) ... [2022-11-18 20:33:08,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5add13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:08, skipping insertion in model container [2022-11-18 20:33:08,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:05" (2/3) ... [2022-11-18 20:33:08,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5add13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:08, skipping insertion in model container [2022-11-18 20:33:08,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:08" (3/3) ... [2022-11-18 20:33:08,768 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-11-18 20:33:08,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:33:08,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:33:08,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:33:08,874 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;@2b752967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:33:08,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:33:08,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 103 states have internal predecessors, (123), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-18 20:33:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:33:08,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:08,897 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:08,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:08,903 INFO L85 PathProgramCache]: Analyzing trace with hash 361569913, now seen corresponding path program 1 times [2022-11-18 20:33:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:33:08,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643871173] [2022-11-18 20:33:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:08,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:08,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:33:08,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:33:08,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:33:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:33:09,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-18 20:33:09,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:33:09,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:33:09,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643871173] [2022-11-18 20:33:09,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643871173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:09,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:09,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:33:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476357256] [2022-11-18 20:33:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:09,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:33:09,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:33:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:33:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:33:10,028 INFO L87 Difference]: Start difference. First operand has 168 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 103 states have internal predecessors, (123), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:33:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:10,083 INFO L93 Difference]: Finished difference Result 329 states and 463 transitions. [2022-11-18 20:33:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:33:10,094 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-18 20:33:10,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:10,105 INFO L225 Difference]: With dead ends: 329 [2022-11-18 20:33:10,105 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 20:33:10,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:33:10,114 INFO L413 NwaCegarLoop]: 216 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, 216 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:10,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:33:10,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 20:33:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-18 20:33:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.183673469387755) internal successors, (116), 99 states have internal predecessors, (116), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-18 20:33:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 211 transitions. [2022-11-18 20:33:10,179 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 211 transitions. Word has length 84 [2022-11-18 20:33:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:10,180 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 211 transitions. [2022-11-18 20:33:10,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:33:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 211 transitions. [2022-11-18 20:33:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:33:10,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:10,185 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:10,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:10,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:10,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:10,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1301778443, now seen corresponding path program 1 times [2022-11-18 20:33:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:33:10,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306905126] [2022-11-18 20:33:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:10,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:10,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:33:10,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:33:10,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:33:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:11,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:33:11,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 20:33:11,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:33:11,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:33:11,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306905126] [2022-11-18 20:33:11,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306905126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:11,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:11,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:33:11,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11502072] [2022-11-18 20:33:11,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:11,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:33:11,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:33:11,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:33:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:33:11,360 INFO L87 Difference]: Start difference. First operand 163 states and 211 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:33:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:11,873 INFO L93 Difference]: Finished difference Result 291 states and 385 transitions. [2022-11-18 20:33:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:33:11,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-11-18 20:33:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:11,883 INFO L225 Difference]: With dead ends: 291 [2022-11-18 20:33:11,883 INFO L226 Difference]: Without dead ends: 165 [2022-11-18 20:33:11,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:33:11,885 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 38 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:11,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 689 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:33:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-18 20:33:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-18 20:33:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 99 states have (on average 1.1818181818181819) internal successors, (117), 101 states have internal predecessors, (117), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2022-11-18 20:33:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 217 transitions. [2022-11-18 20:33:11,922 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 217 transitions. Word has length 84 [2022-11-18 20:33:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:11,924 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 217 transitions. [2022-11-18 20:33:11,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:33:11,925 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 217 transitions. [2022-11-18 20:33:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:33:11,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:11,935 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:11,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:12,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:12,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2117456363, now seen corresponding path program 1 times [2022-11-18 20:33:12,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:33:12,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284388715] [2022-11-18 20:33:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:12,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:12,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:33:12,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:33:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:33:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:13,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:33:13,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:33:13,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:33:13,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:33:13,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284388715] [2022-11-18 20:33:13,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284388715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:13,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:13,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216741452] [2022-11-18 20:33:13,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:13,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:13,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:33:13,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:13,423 INFO L87 Difference]: Start difference. First operand 165 states and 217 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:33:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:14,435 INFO L93 Difference]: Finished difference Result 283 states and 374 transitions. [2022-11-18 20:33:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:33:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-11-18 20:33:14,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:14,444 INFO L225 Difference]: With dead ends: 283 [2022-11-18 20:33:14,444 INFO L226 Difference]: Without dead ends: 165 [2022-11-18 20:33:14,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:33:14,446 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 56 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 977 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:33:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-18 20:33:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-18 20:33:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 99 states have (on average 1.1818181818181819) internal successors, (117), 101 states have internal predecessors, (117), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2022-11-18 20:33:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2022-11-18 20:33:14,462 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 99 [2022-11-18 20:33:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:14,462 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2022-11-18 20:33:14,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:33:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2022-11-18 20:33:14,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:33:14,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:14,465 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:14,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:14,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:14,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:14,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash -751059283, now seen corresponding path program 2 times [2022-11-18 20:33:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:33:14,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557071730] [2022-11-18 20:33:14,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:33:14,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:14,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:33:14,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:33:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:33:18,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:33:18,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:33:18,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:33:18,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:33:19,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:33:19,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:33:19,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557071730] [2022-11-18 20:33:19,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557071730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:19,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:19,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:33:19,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555989862] [2022-11-18 20:33:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:19,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:33:19,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:33:19,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:33:19,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:33:19,107 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:33:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:20,504 INFO L93 Difference]: Finished difference Result 280 states and 366 transitions. [2022-11-18 20:33:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:33:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2022-11-18 20:33:20,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:20,511 INFO L225 Difference]: With dead ends: 280 [2022-11-18 20:33:20,511 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 20:33:20,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:33:20,513 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 65 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:20,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1265 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:33:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 20:33:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-18 20:33:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 99 states have internal predecessors, (115), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-18 20:33:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2022-11-18 20:33:20,544 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 114 [2022-11-18 20:33:20,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:20,546 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2022-11-18 20:33:20,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:33:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2022-11-18 20:33:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-18 20:33:20,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:20,549 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:20,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:20,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:20,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1501593725, now seen corresponding path program 1 times [2022-11-18 20:33:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:33:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984711115] [2022-11-18 20:33:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:20,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:33:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:33:20,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:33:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:33:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 198 conjunts are in the unsatisfiable core [2022-11-18 20:33:47,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:47,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-18 20:34:01,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:01,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 186 [2022-11-18 20:34:06,635 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_11| (_ BitVec 64)) (v_ArrVal_294 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11| v_ArrVal_294)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11|)))) is different from true [2022-11-18 20:34:08,964 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_295 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_295))) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_11| (_ BitVec 64)) (v_ArrVal_294 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11| v_ArrVal_294)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11|))))) is different from true [2022-11-18 20:34:12,887 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-18 20:34:12,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 45 [2022-11-18 20:34:12,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 109 [2022-11-18 20:34:25,662 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-18 20:34:25,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 45 [2022-11-18 20:34:38,473 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12|)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |c_#valid|))) is different from true [2022-11-18 20:34:40,966 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_303 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_303))) (exists ((v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12|)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |c_#valid|)))) is different from true [2022-11-18 20:34:43,562 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_300 (_ BitVec 1)) (v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64)) (v_ArrVal_303 (Array (_ BitVec 64) (_ BitVec 8))) (|v_aws_array_list_is_valid_~#required_size~0.base_8| (_ BitVec 64)) (v_ArrVal_305 (_ BitVec 1))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_8| v_ArrVal_300))) (and (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_12|)) (= |c_#valid| (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |v_aws_array_list_is_valid_~#required_size~0.base_8| v_ArrVal_305)) (= (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_8| v_ArrVal_303) |c_#memory_int|) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_8|))))) is different from true [2022-11-18 20:34:44,178 INFO L321 Elim1Store]: treesize reduction 155, result has 28.6 percent of original size [2022-11-18 20:34:44,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 57 treesize of output 103 [2022-11-18 20:34:44,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 380 [2022-11-18 20:35:12,430 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_307 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_13| (_ BitVec 64))) (and (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13| v_ArrVal_307) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13|)))) is different from true [2022-11-18 20:35:14,671 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_308 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_308))) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_11| (_ BitVec 64)) (v_ArrVal_294 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11| v_ArrVal_294)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11|))))) is different from true [2022-11-18 20:35:17,199 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_300 (_ BitVec 1)) (v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64)) (v_ArrVal_309 (_ BitVec 1)) (v_ArrVal_303 (Array (_ BitVec 64) (_ BitVec 8))) (|v_aws_array_list_is_valid_~#required_size~0.base_9| (_ BitVec 64))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_9| v_ArrVal_300))) (and (= |c_#valid| (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |v_aws_array_list_is_valid_~#required_size~0.base_9| v_ArrVal_309)) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_9|)) (= |c_#memory_int| (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_9| v_ArrVal_303)) (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_12|))))) is different from true [2022-11-18 20:35:17,676 INFO L321 Elim1Store]: treesize reduction 155, result has 28.6 percent of original size [2022-11-18 20:35:17,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 57 treesize of output 103 [2022-11-18 20:35:17,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 380 [2022-11-18 20:35:58,097 WARN L837 $PredicateComparison]: unable to prove that (and (= (_ bv1 8) c_aws_array_list_is_valid_~required_size_is_valid~0) (= |c_aws_array_list_is_valid_#in~list.offset| c_aws_array_list_is_valid_~list.offset) (let ((.cse2 (let ((.cse7 (select |c_#memory_int| c_aws_array_list_is_valid_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse7 (bvadd (_ bv15 64) c_aws_array_list_is_valid_~list.offset)) (select .cse7 (bvadd (_ bv14 64) c_aws_array_list_is_valid_~list.offset))) (select .cse7 (bvadd (_ bv13 64) c_aws_array_list_is_valid_~list.offset))) (select .cse7 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv12 64)))) (select .cse7 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv11 64)))) (select .cse7 (bvadd (_ bv10 64) c_aws_array_list_is_valid_~list.offset))) (select .cse7 (bvadd (_ bv9 64) c_aws_array_list_is_valid_~list.offset))) (select .cse7 (bvadd (_ bv8 64) c_aws_array_list_is_valid_~list.offset))))) (.cse1 (let ((.cse6 (select |c_old(#memory_int)| c_aws_array_list_is_valid_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse6 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv23 64))) (select .cse6 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv22 64)))) (select .cse6 (bvadd (_ bv21 64) c_aws_array_list_is_valid_~list.offset))) (select .cse6 (bvadd (_ bv20 64) c_aws_array_list_is_valid_~list.offset))) (select .cse6 (bvadd (_ bv19 64) c_aws_array_list_is_valid_~list.offset))) (select .cse6 (bvadd (_ bv18 64) c_aws_array_list_is_valid_~list.offset))) (select .cse6 (bvadd (_ bv17 64) c_aws_array_list_is_valid_~list.offset))) (select .cse6 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv16 64))))))) (or (and (= (_ bv0 8) c_aws_array_list_is_valid_~current_size_is_valid~0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (= (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse0 (bvmul .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse0)) (_ bv1 64) ((_ extract 15 8) .cse0)) (_ bv2 64) ((_ extract 23 16) .cse0)) (_ bv3 64) ((_ extract 31 24) .cse0)) (_ bv4 64) ((_ extract 39 32) .cse0)) (_ bv5 64) ((_ extract 47 40) .cse0)) (_ bv6 64) ((_ extract 55 48) .cse0)) (_ bv7 64) ((_ extract 63 56) .cse0)))) |c_#memory_int|) (not (bvuge .cse2 (let ((.cse3 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse3 (_ bv7 64)) (select .cse3 (_ bv6 64))) (select .cse3 (_ bv5 64))) (select .cse3 (_ bv4 64))) (select .cse3 (_ bv3 64))) (select .cse3 (_ bv2 64))) (select .cse3 (_ bv1 64))) (select .cse3 (_ bv0 64))))))))) (and (= (_ bv1 8) c_aws_array_list_is_valid_~current_size_is_valid~0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (bvuge .cse2 (let ((.cse4 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse4 (_ bv7 64)) (select .cse4 (_ bv6 64))) (select .cse4 (_ bv5 64))) (select .cse4 (_ bv4 64))) (select .cse4 (_ bv3 64))) (select .cse4 (_ bv2 64))) (select .cse4 (_ bv1 64))) (select .cse4 (_ bv0 64))))) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (= (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse5 (bvmul .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse5)) (_ bv1 64) ((_ extract 15 8) .cse5)) (_ bv2 64) ((_ extract 23 16) .cse5)) (_ bv3 64) ((_ extract 31 24) .cse5)) (_ bv4 64) ((_ extract 39 32) .cse5)) (_ bv5 64) ((_ extract 47 40) .cse5)) (_ bv6 64) ((_ extract 55 48) .cse5)) (_ bv7 64) ((_ extract 63 56) .cse5)))) |c_#memory_int|)))))) (= |c_aws_array_list_is_valid_#in~list.base| c_aws_array_list_is_valid_~list.base)) is different from false [2022-11-18 20:37:28,303 WARN L233 SmtUtils]: Spent 16.53s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:37:48,213 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|))) (let ((.cse1 (let ((.cse9 (select |c_old(#memory_int)| |c_aws_array_list_is_valid_#in~list.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse9 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv23 64))) (select .cse9 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv22 64)))) (select .cse9 (bvadd (_ bv21 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse9 (bvadd (_ bv20 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse9 (bvadd (_ bv19 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse9 (bvadd (_ bv18 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse9 (bvadd (_ bv17 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse9 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv16 64)))))) (.cse2 (concat (concat (concat (concat (concat (concat (concat (select .cse6 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv15 64))) (select .cse6 (bvadd (_ bv14 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv13 64)))) (select .cse6 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv12 64)))) (select .cse6 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv11 64)))) (select .cse6 (bvadd (_ bv10 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv9 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv8 64) |c_aws_array_list_is_valid_#in~list.offset|)))) (.cse5 (= |c_aws_array_list_is_valid_#res| (_ bv0 8)))) (or (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse0 (bvmul .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse0)) (_ bv1 64) ((_ extract 15 8) .cse0)) (_ bv2 64) ((_ extract 23 16) .cse0)) (_ bv3 64) ((_ extract 31 24) .cse0)) (_ bv4 64) ((_ extract 39 32) .cse0)) (_ bv5 64) ((_ extract 47 40) .cse0)) (_ bv6 64) ((_ extract 55 48) .cse0)) (_ bv7 64) ((_ extract 63 56) .cse0))))) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (bvuge .cse2 (let ((.cse3 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse3 (_ bv7 64)) (select .cse3 (_ bv6 64))) (select .cse3 (_ bv5 64))) (select .cse3 (_ bv4 64))) (select .cse3 (_ bv3 64))) (select .cse3 (_ bv2 64))) (select .cse3 (_ bv1 64))) (select .cse3 (_ bv0 64))))))) (let ((.cse4 (= (_ bv0 64) (concat (concat (concat (concat (concat (concat (concat (select .cse6 (bvadd (_ bv31 64) |c_aws_array_list_is_valid_#in~list.offset|)) (select .cse6 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv30 64)))) (select .cse6 (bvadd (_ bv29 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv28 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv27 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv26 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv25 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse6 (bvadd (_ bv24 64) |c_aws_array_list_is_valid_#in~list.offset|)))))) (or (and (not .cse4) (= (_ bv1 8) |c_aws_array_list_is_valid_#res|)) (and .cse4 .cse5)))) (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse7 (bvmul .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse7)) (_ bv1 64) ((_ extract 15 8) .cse7)) (_ bv2 64) ((_ extract 23 16) .cse7)) (_ bv3 64) ((_ extract 31 24) .cse7)) (_ bv4 64) ((_ extract 39 32) .cse7)) (_ bv5 64) ((_ extract 47 40) .cse7)) (_ bv6 64) ((_ extract 55 48) .cse7)) (_ bv7 64) ((_ extract 63 56) .cse7))))) (not (bvuge .cse2 (let ((.cse8 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse8 (_ bv7 64)) (select .cse8 (_ bv6 64))) (select .cse8 (_ bv5 64))) (select .cse8 (_ bv4 64))) (select .cse8 (_ bv3 64))) (select .cse8 (_ bv2 64))) (select .cse8 (_ bv1 64))) (select .cse8 (_ bv0 64)))))) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)))) .cse5)))) is different from true [2022-11-18 20:37:56,418 INFO L321 Elim1Store]: treesize reduction 4968, result has 1.4 percent of original size [2022-11-18 20:37:56,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 20 select indices, 20 select index equivalence classes, 279 disjoint index pairs (out of 190 index pairs), introduced 22 new quantified variables, introduced 14 case distinctions, treesize of input 1536 treesize of output 1139 [2022-11-18 20:37:57,529 INFO L321 Elim1Store]: treesize reduction 18, result has 74.6 percent of original size [2022-11-18 20:37:57,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 343 treesize of output 385 [2022-11-18 20:38:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 13 proven. 53 refuted. 29 times theorem prover too weak. 34 trivial. 45 not checked. [2022-11-18 20:38:06,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:38:29,753 WARN L233 SmtUtils]: Spent 7.73s on a formula simplification that was a NOOP. DAG size: 245 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:38:40,186 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:38:52,138 WARN L233 SmtUtils]: Spent 11.95s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:39:00,282 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 201 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:39:15,850 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse9 (bvadd (_ bv31 64) c_aws_array_list_length_~list.offset)) (.cse10 (bvadd c_aws_array_list_length_~list.offset (_ bv30 64))) (.cse11 (bvadd (_ bv29 64) c_aws_array_list_length_~list.offset)) (.cse12 (bvadd (_ bv28 64) c_aws_array_list_length_~list.offset)) (.cse13 (bvadd (_ bv27 64) c_aws_array_list_length_~list.offset)) (.cse14 (bvadd (_ bv26 64) c_aws_array_list_length_~list.offset)) (.cse15 (bvadd (_ bv25 64) c_aws_array_list_length_~list.offset)) (.cse16 (bvadd (_ bv24 64) c_aws_array_list_length_~list.offset)) (.cse18 (let ((.cse21 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse21 (bvadd c_aws_array_list_length_~list.offset (_ bv23 64))) (select .cse21 (bvadd c_aws_array_list_length_~list.offset (_ bv22 64)))) (select .cse21 (bvadd c_aws_array_list_length_~list.offset (_ bv21 64)))) (select .cse21 (bvadd (_ bv20 64) c_aws_array_list_length_~list.offset))) (select .cse21 (bvadd (_ bv19 64) c_aws_array_list_length_~list.offset))) (select .cse21 (bvadd (_ bv18 64) c_aws_array_list_length_~list.offset))) (select .cse21 (bvadd (_ bv17 64) c_aws_array_list_length_~list.offset))) (select .cse21 (bvadd c_aws_array_list_length_~list.offset (_ bv16 64))))))) (and (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_14| (_ BitVec 64))) (or (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| (_ BitVec 64))) (let ((.cse17 (bvmul |v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| .cse18))) (let ((.cse8 ((_ extract 7 0) .cse17)) (.cse7 ((_ extract 15 8) .cse17)) (.cse6 ((_ extract 23 16) .cse17)) (.cse5 ((_ extract 31 24) .cse17)) (.cse4 ((_ extract 39 32) .cse17)) (.cse3 ((_ extract 47 40) .cse17)) (.cse2 ((_ extract 55 48) .cse17)) (.cse1 ((_ extract 63 56) .cse17))) (let ((.cse0 (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14| (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14|) (_ bv0 64) .cse8) (_ bv1 64) .cse7) (_ bv2 64) .cse6) (_ bv3 64) .cse5) (_ bv4 64) .cse4) (_ bv5 64) .cse3) (_ bv6 64) .cse2) (_ bv7 64) .cse1)) c_aws_array_list_length_~list.base))) (or (bvuge (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd c_aws_array_list_length_~list.offset (_ bv15 64))) (select .cse0 (bvadd (_ bv14 64) c_aws_array_list_length_~list.offset))) (select .cse0 (bvadd c_aws_array_list_length_~list.offset (_ bv13 64)))) (select .cse0 (bvadd c_aws_array_list_length_~list.offset (_ bv12 64)))) (select .cse0 (bvadd c_aws_array_list_length_~list.offset (_ bv11 64)))) (select .cse0 (bvadd (_ bv10 64) c_aws_array_list_length_~list.offset))) (select .cse0 (bvadd (_ bv9 64) c_aws_array_list_length_~list.offset))) (select .cse0 (bvadd (_ bv8 64) c_aws_array_list_length_~list.offset))) (concat (concat (concat (concat (concat (concat (concat .cse1 .cse2) .cse3) .cse4) .cse5) .cse6) .cse7) .cse8)) (= (_ bv0 64) (concat (concat (concat (concat (concat (concat (concat (select .cse0 .cse9) (select .cse0 .cse10)) (select .cse0 .cse11)) (select .cse0 .cse12)) (select .cse0 .cse13)) (select .cse0 .cse14)) (select .cse0 .cse15)) (select .cse0 .cse16)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_14|))))) (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_14| (_ BitVec 64))) (or (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| (_ BitVec 64))) (not (= (_ bv0 64) (let ((.cse19 (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14| (let ((.cse20 (bvmul |v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| .cse18))) (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14|) (_ bv0 64) ((_ extract 7 0) .cse20)) (_ bv1 64) ((_ extract 15 8) .cse20)) (_ bv2 64) ((_ extract 23 16) .cse20)) (_ bv3 64) ((_ extract 31 24) .cse20)) (_ bv4 64) ((_ extract 39 32) .cse20)) (_ bv5 64) ((_ extract 47 40) .cse20)) (_ bv6 64) ((_ extract 55 48) .cse20)) (_ bv7 64) ((_ extract 63 56) .cse20)))) c_aws_array_list_length_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse19 .cse9) (select .cse19 .cse10)) (select .cse19 .cse11)) (select .cse19 .cse12)) (select .cse19 .cse13)) (select .cse19 .cse14)) (select .cse19 .cse15)) (select .cse19 .cse16)))))) (not (= (_ bv0 1) (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_14|))))))) is different from true [2022-11-18 20:39:15,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:39:15,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984711115] [2022-11-18 20:39:15,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984711115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:39:15,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1129971218] [2022-11-18 20:39:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:15,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 20:39:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 20:39:15,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 20:39:15,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1211704d-89e9-4597-b935-2bd62679a95d/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process