./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a --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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- 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-b5237d8 [2022-11-21 16:42:55,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:42:55,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:42:56,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:42:56,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:42:56,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:42:56,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:42:56,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:42:56,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:42:56,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:42:56,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:42:56,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:42:56,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:42:56,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:42:56,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:42:56,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:42:56,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:42:56,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:42:56,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:42:56,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:42:56,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:42:56,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:42:56,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:42:56,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:42:56,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:42:56,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:42:56,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:42:56,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:42:56,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:42:56,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:42:56,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:42:56,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:42:56,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:42:56,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:42:56,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:42:56,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:42:56,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:42:56,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:42:56,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:42:56,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:42:56,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:42:56,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:42:56,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:42:56,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:42:56,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:42:56,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:42:56,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:42:56,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:42:56,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:42:56,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:42:56,150 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:42:56,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:42:56,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:42:56,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:42:56,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:42:56,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:42:56,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:42:56,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:42:56,153 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:42:56,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:42:56,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:42:56,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:42:56,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:42:56,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:42:56,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:42:56,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:42:56,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:42:56,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:42:56,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:42:56,156 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:42:56,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:42:56,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:42:56,157 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_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2022-11-21 16:42:56,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:42:56,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:42:56,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:42:56,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:42:56,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:42:56,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-21 16:42:59,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:43:00,055 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:43:00,056 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-21 16:43:00,095 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/data/4eb433d25/49f27c4b2bdb45559385c0fcfde8ff55/FLAGece1e43b2 [2022-11-21 16:43:00,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/data/4eb433d25/49f27c4b2bdb45559385c0fcfde8ff55 [2022-11-21 16:43:00,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:43:00,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:43:00,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:43:00,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:43:00,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:43:00,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:43:00" (1/1) ... [2022-11-21 16:43:00,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4e89e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:00, skipping insertion in model container [2022-11-21 16:43:00,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:43:00" (1/1) ... [2022-11-21 16:43:00,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:43:00,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:43:00,522 WARN L237 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_1f62bdef-2ae8-4a47-a524-a40679da274b/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-21 16:43:00,531 WARN L237 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_1f62bdef-2ae8-4a47-a524-a40679da274b/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-21 16:43:01,485 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:43:01,574 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,575 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,576 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,577 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,578 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,591 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,592 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,594 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,594 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,597 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,598 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,599 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:01,599 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,101 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:43:02,102 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:43:02,103 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:43:02,104 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:43:02,106 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:43:02,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:43:02,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:43:02,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:43:02,109 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:43:02,110 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:43:02,307 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,308 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,313 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,319 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,390 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:43:02,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:43:02,457 WARN L237 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_1f62bdef-2ae8-4a47-a524-a40679da274b/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-21 16:43:02,462 WARN L237 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_1f62bdef-2ae8-4a47-a524-a40679da274b/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-21 16:43:02,526 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:43:02,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,555 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,555 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,556 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,569 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,569 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,571 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,571 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,575 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,576 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,577 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,578 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,637 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:43:02,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:43:02,639 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:43:02,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:43:02,644 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:43:02,645 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:43:02,646 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:43:02,647 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:43:02,648 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:43:02,649 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:43:02,697 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,698 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,699 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,704 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,738 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:43:02,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:43:02,993 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:43:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02 WrapperNode [2022-11-21 16:43:02,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:43:02,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:43:02,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:43:02,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:43:03,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,154 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 803 [2022-11-21 16:43:03,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:43:03,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:43:03,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:43:03,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:43:03,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:43:03,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:43:03,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:43:03,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:43:03,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (1/1) ... [2022-11-21 16:43:03,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:43:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:03,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:43:03,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:43:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:43:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-21 16:43:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-21 16:43:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-21 16:43:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-21 16:43:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-21 16:43:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-21 16:43:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-21 16:43:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-21 16:43:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:43:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-21 16:43:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-21 16:43:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-21 16:43:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-21 16:43:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:43:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:43:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:43:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-21 16:43:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-21 16:43:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:43:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:43:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-21 16:43:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-21 16:43:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-21 16:43:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-21 16:43:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-21 16:43:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-21 16:43:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-21 16:43:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-21 16:43:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-21 16:43:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-21 16:43:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:43:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:43:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-21 16:43:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-21 16:43:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-21 16:43:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-21 16:43:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:43:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-21 16:43:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-21 16:43:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:43:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:43:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-21 16:43:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-21 16:43:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-21 16:43:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-21 16:43:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-21 16:43:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-21 16:43:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2022-11-21 16:43:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2022-11-21 16:43:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:43:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-21 16:43:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-21 16:43:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:43:03,762 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:43:03,768 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:43:05,115 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:43:05,132 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:43:05,132 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:43:05,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:43:05 BoogieIcfgContainer [2022-11-21 16:43:05,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:43:05,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:43:05,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:43:05,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:43:05,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:43:00" (1/3) ... [2022-11-21 16:43:05,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3600f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:43:05, skipping insertion in model container [2022-11-21 16:43:05,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:02" (2/3) ... [2022-11-21 16:43:05,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3600f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:43:05, skipping insertion in model container [2022-11-21 16:43:05,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:43:05" (3/3) ... [2022-11-21 16:43:05,154 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2022-11-21 16:43:05,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:43:05,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:43:05,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:43:05,262 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;@199c5273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:43:05,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:43:05,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-21 16:43:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-21 16:43:05,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:05,289 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:05,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:05,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:05,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1087274047, now seen corresponding path program 1 times [2022-11-21 16:43:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:05,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766292756] [2022-11-21 16:43:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:43:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:43:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:43:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:43:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:43:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 16:43:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:43:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:43:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:43:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:43:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:43:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:43:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:43:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:43:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-21 16:43:06,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:06,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766292756] [2022-11-21 16:43:06,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766292756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:06,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:06,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:43:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877754857] [2022-11-21 16:43:06,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:06,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:43:06,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:43:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:06,416 INFO L87 Difference]: Start difference. First operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:43:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:07,408 INFO L93 Difference]: Finished difference Result 502 states and 720 transitions. [2022-11-21 16:43:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:07,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2022-11-21 16:43:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:07,439 INFO L225 Difference]: With dead ends: 502 [2022-11-21 16:43:07,439 INFO L226 Difference]: Without dead ends: 257 [2022-11-21 16:43:07,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:07,453 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 82 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:07,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 370 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 16:43:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-21 16:43:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 230. [2022-11-21 16:43:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-21 16:43:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 304 transitions. [2022-11-21 16:43:07,530 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 304 transitions. Word has length 87 [2022-11-21 16:43:07,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:07,530 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 304 transitions. [2022-11-21 16:43:07,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:43:07,531 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 304 transitions. [2022-11-21 16:43:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-21 16:43:07,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:07,535 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:07,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:43:07,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash 672902535, now seen corresponding path program 1 times [2022-11-21 16:43:07,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:07,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801292455] [2022-11-21 16:43:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:07,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:43:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:43:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:43:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:43:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:43:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 16:43:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:43:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:43:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:43:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:43:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:43:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:43:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:43:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:43:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,375 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-21 16:43:08,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:08,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801292455] [2022-11-21 16:43:08,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801292455] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:43:08,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003865177] [2022-11-21 16:43:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:08,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:08,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:08,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:08,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:43:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:08,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:43:08,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:43:09,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:43:09,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003865177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:09,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:43:09,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-21 16:43:09,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123148359] [2022-11-21 16:43:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:09,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:43:09,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:09,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:43:09,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:43:09,045 INFO L87 Difference]: Start difference. First operand 230 states and 304 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:43:09,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:09,378 INFO L93 Difference]: Finished difference Result 436 states and 585 transitions. [2022-11-21 16:43:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:43:09,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 87 [2022-11-21 16:43:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:09,382 INFO L225 Difference]: With dead ends: 436 [2022-11-21 16:43:09,382 INFO L226 Difference]: Without dead ends: 232 [2022-11-21 16:43:09,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:43:09,387 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 306 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:09,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 970 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:43:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-21 16:43:09,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-11-21 16:43:09,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-21 16:43:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2022-11-21 16:43:09,420 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 87 [2022-11-21 16:43:09,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:09,421 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2022-11-21 16:43:09,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:43:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2022-11-21 16:43:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:43:09,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:09,424 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:09,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:43:09,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:09,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash -149436210, now seen corresponding path program 1 times [2022-11-21 16:43:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:09,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603720296] [2022-11-21 16:43:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:09,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:43:09,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437994178] [2022-11-21 16:43:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:09,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:09,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:09,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:09,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:43:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:10,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:43:10,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:43:10,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:43:10,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:10,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603720296] [2022-11-21 16:43:10,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:43:10,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437994178] [2022-11-21 16:43:10,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437994178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:10,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:10,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:43:10,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022879678] [2022-11-21 16:43:10,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:10,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:43:10,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:10,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:43:10,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:10,334 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:43:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:10,381 INFO L93 Difference]: Finished difference Result 443 states and 614 transitions. [2022-11-21 16:43:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:10,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2022-11-21 16:43:10,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:10,384 INFO L225 Difference]: With dead ends: 443 [2022-11-21 16:43:10,385 INFO L226 Difference]: Without dead ends: 237 [2022-11-21 16:43:10,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:10,387 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 10 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:10,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 899 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:43:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-21 16:43:10,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2022-11-21 16:43:10,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-21 16:43:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 317 transitions. [2022-11-21 16:43:10,415 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 317 transitions. Word has length 102 [2022-11-21 16:43:10,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:10,415 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 317 transitions. [2022-11-21 16:43:10,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:43:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 317 transitions. [2022-11-21 16:43:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:43:10,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:10,418 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:10,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:43:10,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:10,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash -710135988, now seen corresponding path program 1 times [2022-11-21 16:43:10,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:10,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760128245] [2022-11-21 16:43:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:10,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:43:10,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703110442] [2022-11-21 16:43:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:10,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:10,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:10,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:10,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:43:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:11,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2380 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:43:11,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 16:43:11,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:43:11,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:11,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760128245] [2022-11-21 16:43:11,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:43:11,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703110442] [2022-11-21 16:43:11,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703110442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:11,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:11,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:43:11,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661907578] [2022-11-21 16:43:11,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:11,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:43:11,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:11,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:43:11,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:43:11,354 INFO L87 Difference]: Start difference. First operand 234 states and 317 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-21 16:43:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:11,953 INFO L93 Difference]: Finished difference Result 432 states and 583 transitions. [2022-11-21 16:43:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:43:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 102 [2022-11-21 16:43:11,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:11,955 INFO L225 Difference]: With dead ends: 432 [2022-11-21 16:43:11,955 INFO L226 Difference]: Without dead ends: 234 [2022-11-21 16:43:11,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:43:11,957 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 354 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:11,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1238 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:43:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-21 16:43:11,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-21 16:43:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2022-11-21 16:43:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2022-11-21 16:43:11,981 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 102 [2022-11-21 16:43:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:11,982 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2022-11-21 16:43:11,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-21 16:43:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2022-11-21 16:43:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 16:43:11,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:11,985 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:12,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:43:12,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:12,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:12,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:12,196 INFO L85 PathProgramCache]: Analyzing trace with hash 191134547, now seen corresponding path program 2 times [2022-11-21 16:43:12,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:12,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301886271] [2022-11-21 16:43:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:12,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:12,284 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:43:12,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147757166] [2022-11-21 16:43:12,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:43:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:12,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:12,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:43:12,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:43:12,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:43:12,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:43:12,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-21 16:43:12,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:43:12,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301886271] [2022-11-21 16:43:12,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:43:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147757166] [2022-11-21 16:43:12,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147757166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:12,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:12,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:43:12,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19629820] [2022-11-21 16:43:12,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:12,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:43:12,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:12,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:43:12,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:12,839 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:43:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:12,887 INFO L93 Difference]: Finished difference Result 409 states and 535 transitions. [2022-11-21 16:43:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:12,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-11-21 16:43:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:12,896 INFO L225 Difference]: With dead ends: 409 [2022-11-21 16:43:12,896 INFO L226 Difference]: Without dead ends: 239 [2022-11-21 16:43:12,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:43:12,899 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 2 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:12,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:43:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-21 16:43:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-21 16:43:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-21 16:43:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 316 transitions. [2022-11-21 16:43:12,941 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 316 transitions. Word has length 117 [2022-11-21 16:43:12,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:12,942 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 316 transitions. [2022-11-21 16:43:12,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:43:12,943 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 316 transitions. [2022-11-21 16:43:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-21 16:43:12,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:12,950 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:12,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:43:13,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:13,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash 389087133, now seen corresponding path program 1 times [2022-11-21 16:43:13,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:13,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988423127] [2022-11-21 16:43:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:13,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:43:13,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153971732] [2022-11-21 16:43:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:13,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:13,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:13,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:13,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:43:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:13,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 2525 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:43:13,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-21 16:43:13,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:43:13,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:13,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988423127] [2022-11-21 16:43:13,960 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:43:13,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153971732] [2022-11-21 16:43:13,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153971732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:13,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:13,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:43:13,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492263466] [2022-11-21 16:43:13,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:13,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:43:13,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:13,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:43:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:43:13,963 INFO L87 Difference]: Start difference. First operand 239 states and 316 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-21 16:43:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:14,603 INFO L93 Difference]: Finished difference Result 439 states and 576 transitions. [2022-11-21 16:43:14,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:43:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 123 [2022-11-21 16:43:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:14,606 INFO L225 Difference]: With dead ends: 439 [2022-11-21 16:43:14,606 INFO L226 Difference]: Without dead ends: 237 [2022-11-21 16:43:14,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:43:14,608 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 392 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:14,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1409 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:43:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-21 16:43:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-21 16:43:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-21 16:43:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 310 transitions. [2022-11-21 16:43:14,629 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 310 transitions. Word has length 123 [2022-11-21 16:43:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:14,629 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 310 transitions. [2022-11-21 16:43:14,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-21 16:43:14,630 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2022-11-21 16:43:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-21 16:43:14,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:14,632 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:14,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:43:14,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 16:43:14,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:43:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1195830657, now seen corresponding path program 1 times [2022-11-21 16:43:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915167579] [2022-11-21 16:43:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:14,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:14,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:43:14,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382876932] [2022-11-21 16:43:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:14,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:43:14,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:14,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:43:14,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f62bdef-2ae8-4a47-a524-a40679da274b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:43:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:17,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 314 conjunts are in the unsatisfiable core [2022-11-21 16:43:17,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:43:17,494 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 5 [2022-11-21 16:43:17,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 16:43:17,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 16:43:18,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 16:43:18,912 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-21 16:43:18,913 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 41 treesize of output 53 [2022-11-21 16:43:19,366 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-21 16:43:19,366 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 29 treesize of output 37 [2022-11-21 16:43:20,648 INFO L321 Elim1Store]: treesize reduction 91, result has 30.0 percent of original size [2022-11-21 16:43:20,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 46 treesize of output 69 [2022-11-21 16:43:20,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-21 16:43:21,321 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-21 16:43:21,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-21 16:43:43,812 WARN L233 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 55 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:43:44,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:43:44,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:43:44,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 228 [2022-11-21 16:43:44,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 16:43:44,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 112 treesize of output 174 [2022-11-21 16:43:56,215 INFO L321 Elim1Store]: treesize reduction 63, result has 22.2 percent of original size [2022-11-21 16:43:56,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 152 [2022-11-21 16:43:56,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-11-21 16:43:56,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:43:56,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:43:56,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2022-11-21 16:44:04,003 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-21 16:44:04,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 140 [2022-11-21 16:44:04,089 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-21 16:44:04,394 INFO L321 Elim1Store]: treesize reduction 57, result has 24.0 percent of original size [2022-11-21 16:44:04,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 162 treesize of output 152 [2022-11-21 16:44:04,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-11-21 16:44:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:04,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:04,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2022-11-21 16:44:05,518 INFO L321 Elim1Store]: treesize reduction 57, result has 24.0 percent of original size [2022-11-21 16:44:05,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 162 treesize of output 152 [2022-11-21 16:44:05,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-11-21 16:44:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:05,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:05,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2022-11-21 16:44:13,384 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-21 16:44:13,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 162 treesize of output 145 [2022-11-21 16:44:13,551 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-21 16:44:13,748 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-21 16:44:13,770 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-21 16:44:13,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 162 treesize of output 145 [2022-11-21 16:44:13,867 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-21 16:44:14,697 INFO L321 Elim1Store]: treesize reduction 75, result has 19.4 percent of original size [2022-11-21 16:44:14,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 162 treesize of output 152 [2022-11-21 16:44:14,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-11-21 16:44:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:14,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:14,949 INFO L217 Elim1Store]: Index analysis took 167 ms [2022-11-21 16:44:14,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2022-11-21 16:44:15,873 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-21 16:44:15,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 63 [2022-11-21 16:44:15,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-21 16:44:15,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:44:15,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-21 16:44:21,312 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-21 16:44:21,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 19 [2022-11-21 16:44:21,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-21 16:45:16,816 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 190 DAG size of output: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:45:46,442 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)