./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN --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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- 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-6b4ec56 [2022-11-20 12:04:52,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:04:52,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:04:52,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:04:52,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:04:52,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:04:52,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:04:52,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:04:52,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:04:52,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:04:52,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:04:52,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:04:52,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:04:52,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:04:52,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:04:52,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:04:52,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:04:52,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:04:52,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:04:52,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:04:52,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:04:52,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:04:52,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:04:52,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:04:52,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:04:52,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:04:52,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:04:52,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:04:52,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:04:52,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:04:52,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:04:52,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:04:52,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:04:52,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:04:52,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:04:52,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:04:52,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:04:52,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:04:52,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:04:52,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:04:52,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:04:52,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:04:52,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:04:52,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:04:52,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:04:52,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:04:52,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:04:52,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:04:52,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:04:52,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:04:52,997 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:04:52,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:04:52,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:04:52,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:04:52,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:04:52,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:04:52,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:04:53,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:04:53,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:04:53,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:04:53,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:04:53,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:04:53,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:04:53,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:53,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:04:53,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:04:53,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:04:53,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:04:53,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:04:53,002 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:04:53,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:04:53,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:04:53,003 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_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2022-11-20 12:04:53,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:04:53,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:04:53,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:04:53,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:04:53,337 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:04:53,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-11-20 12:04:56,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:04:57,029 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:04:57,030 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-11-20 12:04:57,064 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/data/22bdbf11c/83274d8c624c43a7a04068637d95fb54/FLAGa46594b15 [2022-11-20 12:04:57,081 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/data/22bdbf11c/83274d8c624c43a7a04068637d95fb54 [2022-11-20 12:04:57,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:04:57,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:04:57,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:57,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:04:57,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:04:57,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:57" (1/1) ... [2022-11-20 12:04:57,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e634c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:57, skipping insertion in model container [2022-11-20 12:04:57,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:57" (1/1) ... [2022-11-20 12:04:57,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:04:57,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:04:57,485 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_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-11-20 12:04:57,495 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_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-11-20 12:04:58,534 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,535 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,536 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,537 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,538 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,555 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,560 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,561 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,562 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:58,563 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,054 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:04:59,058 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:04:59,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:04:59,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:04:59,067 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:04:59,068 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:04:59,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:04:59,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:04:59,084 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:04:59,086 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:04:59,338 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:04:59,367 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,368 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,375 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,382 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,462 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,463 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,463 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,464 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,464 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,467 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,468 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,469 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,469 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,470 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,470 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,470 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,471 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,479 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,479 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,480 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,480 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,486 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,486 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,498 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,500 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,500 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:59,581 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:04:59,644 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_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-11-20 12:04:59,644 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_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-11-20 12:04:59,742 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,742 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,743 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,743 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,744 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,759 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,760 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,760 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,762 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,764 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,765 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,765 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:04:59,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:04:59,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:04:59,831 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:04:59,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:04:59,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:04:59,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:04:59,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:04:59,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:04:59,838 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:04:59,874 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:04:59,898 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,899 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,900 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,907 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,949 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,949 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,950 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,950 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,951 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,951 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,952 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,953 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,954 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,954 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,955 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,955 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,955 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,956 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,957 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,957 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,957 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,960 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,961 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,969 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,970 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,971 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:04:59,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:05:00,248 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:05:00,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00 WrapperNode [2022-11-20 12:05:00,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:05:00,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:00,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:05:00,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:05:00,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,418 INFO L138 Inliner]: procedures = 697, calls = 1886, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 814 [2022-11-20 12:05:00,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:00,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:05:00,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:05:00,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:05:00,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:05:00,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:05:00,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:05:00,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:05:00,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (1/1) ... [2022-11-20 12:05:00,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:05:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:00,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:05:00,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:05:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-20 12:05:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-20 12:05:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-20 12:05:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-20 12:05:00,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:05:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 12:05:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 12:05:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 12:05:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 12:05:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 12:05:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 12:05:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-20 12:05:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-20 12:05:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:05:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 12:05:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 12:05:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:05:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:05:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:05:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:05:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:05:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-20 12:05:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-20 12:05:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-20 12:05:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-20 12:05:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:05:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:05:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 12:05:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 12:05:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 12:05:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 12:05:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-20 12:05:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-20 12:05:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-20 12:05:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-20 12:05:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-20 12:05:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-20 12:05:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:05:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:05:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-20 12:05:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-20 12:05:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:05:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-20 12:05:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 12:05:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 12:05:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:05:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:05:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:05:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 12:05:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 12:05:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-20 12:05:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-20 12:05:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:05:01,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:05:01,100 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:05:02,429 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:05:02,438 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:05:02,439 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 12:05:02,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:02 BoogieIcfgContainer [2022-11-20 12:05:02,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:05:02,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:05:02,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:05:02,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:05:02,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:57" (1/3) ... [2022-11-20 12:05:02,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0abc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:02, skipping insertion in model container [2022-11-20 12:05:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:00" (2/3) ... [2022-11-20 12:05:02,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0abc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:02, skipping insertion in model container [2022-11-20 12:05:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:02" (3/3) ... [2022-11-20 12:05:02,451 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2022-11-20 12:05:02,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:05:02,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 12:05:02,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:05:02,535 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;@277d839d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:05:02,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 12:05:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 307 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 189 states have internal predecessors, (232), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-11-20 12:05:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 12:05:02,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:02,555 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:02,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2041456633, now seen corresponding path program 1 times [2022-11-20 12:05:02,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:02,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669184509] [2022-11-20 12:05:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:05:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:05:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:05:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:05:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:05:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:05:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:05:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:05:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:05:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:05:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-20 12:05:03,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669184509] [2022-11-20 12:05:03,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669184509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:03,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:03,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:05:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494214534] [2022-11-20 12:05:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:03,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:05:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:03,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:05:03,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:05:03,684 INFO L87 Difference]: Start difference. First operand has 307 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 189 states have internal predecessors, (232), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 12:05:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:05,103 INFO L93 Difference]: Finished difference Result 695 states and 1100 transitions. [2022-11-20 12:05:05,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:05:05,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 4 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 102 [2022-11-20 12:05:05,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:05,119 INFO L225 Difference]: With dead ends: 695 [2022-11-20 12:05:05,120 INFO L226 Difference]: Without dead ends: 394 [2022-11-20 12:05:05,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:05:05,133 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 124 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:05,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 552 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 12:05:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-20 12:05:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 300. [2022-11-20 12:05:05,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 181 states have (on average 1.2099447513812154) internal successors, (219), 183 states have internal predecessors, (219), 95 states have call successors, (95), 23 states have call predecessors, (95), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-20 12:05:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 407 transitions. [2022-11-20 12:05:05,253 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 407 transitions. Word has length 102 [2022-11-20 12:05:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:05,254 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 407 transitions. [2022-11-20 12:05:05,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 12:05:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 407 transitions. [2022-11-20 12:05:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 12:05:05,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:05,258 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:05,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:05:05,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1554967455, now seen corresponding path program 1 times [2022-11-20 12:05:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:05,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932563502] [2022-11-20 12:05:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:05,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:05:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:05:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:05:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:05:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:05:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:05:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:05:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:05:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:05:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:05:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 12:05:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:06,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932563502] [2022-11-20 12:05:06,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932563502] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:06,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104793054] [2022-11-20 12:05:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:06,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:06,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:06,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:06,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:05:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:06,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2181 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:05:06,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:05:06,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:06,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104793054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:06,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:05:06,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-20 12:05:06,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200900449] [2022-11-20 12:05:06,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:06,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:06,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:06,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:06,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:05:06,724 INFO L87 Difference]: Start difference. First operand 300 states and 407 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-11-20 12:05:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:06,988 INFO L93 Difference]: Finished difference Result 566 states and 774 transitions. [2022-11-20 12:05:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:06,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 102 [2022-11-20 12:05:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:06,992 INFO L225 Difference]: With dead ends: 566 [2022-11-20 12:05:06,992 INFO L226 Difference]: Without dead ends: 302 [2022-11-20 12:05:06,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:05:06,995 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 430 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:06,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1420 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:05:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-11-20 12:05:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2022-11-20 12:05:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 182 states have (on average 1.2087912087912087) internal successors, (220), 185 states have internal predecessors, (220), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2022-11-20 12:05:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2022-11-20 12:05:07,030 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 412 transitions. Word has length 102 [2022-11-20 12:05:07,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:07,030 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 412 transitions. [2022-11-20 12:05:07,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-11-20 12:05:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 412 transitions. [2022-11-20 12:05:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 12:05:07,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:07,033 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:07,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:07,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:07,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:07,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:07,243 INFO L85 PathProgramCache]: Analyzing trace with hash 607806195, now seen corresponding path program 1 times [2022-11-20 12:05:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:07,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351210770] [2022-11-20 12:05:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:07,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:05:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:05:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:05:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:05:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:05:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:07,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:05:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:05:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:05:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:05:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 12:05:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:05:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:05:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-20 12:05:08,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351210770] [2022-11-20 12:05:08,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351210770] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286748677] [2022-11-20 12:05:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:08,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:08,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:08,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:08,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:05:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:08,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 2231 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:05:08,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:05:08,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:08,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286748677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:08,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:05:08,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-11-20 12:05:08,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577646813] [2022-11-20 12:05:08,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:08,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:05:08,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:08,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:05:08,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:05:08,820 INFO L87 Difference]: Start difference. First operand 302 states and 412 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:05:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:09,269 INFO L93 Difference]: Finished difference Result 589 states and 821 transitions. [2022-11-20 12:05:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:05:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 110 [2022-11-20 12:05:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:09,275 INFO L225 Difference]: With dead ends: 589 [2022-11-20 12:05:09,276 INFO L226 Difference]: Without dead ends: 323 [2022-11-20 12:05:09,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:05:09,281 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 460 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:09,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 2112 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:05:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-20 12:05:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2022-11-20 12:05:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 198 states have (on average 1.2222222222222223) internal successors, (242), 201 states have internal predecessors, (242), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-20 12:05:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 449 transitions. [2022-11-20 12:05:09,340 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 449 transitions. Word has length 110 [2022-11-20 12:05:09,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:09,340 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 449 transitions. [2022-11-20 12:05:09,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:05:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 449 transitions. [2022-11-20 12:05:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 12:05:09,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:09,350 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:09,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:09,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:09,559 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash 448579649, now seen corresponding path program 1 times [2022-11-20 12:05:09,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:09,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020677802] [2022-11-20 12:05:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:09,655 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:09,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525707579] [2022-11-20 12:05:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:09,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:09,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:09,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:09,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:05:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:10,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 2372 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:05:10,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:05:10,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:10,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020677802] [2022-11-20 12:05:10,299 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525707579] [2022-11-20 12:05:10,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525707579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:10,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:10,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:05:10,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184115443] [2022-11-20 12:05:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:10,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:05:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:05:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:05:10,302 INFO L87 Difference]: Start difference. First operand 321 states and 449 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-20 12:05:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:10,622 INFO L93 Difference]: Finished difference Result 614 states and 870 transitions. [2022-11-20 12:05:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:05:10,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 125 [2022-11-20 12:05:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:10,628 INFO L225 Difference]: With dead ends: 614 [2022-11-20 12:05:10,628 INFO L226 Difference]: Without dead ends: 329 [2022-11-20 12:05:10,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:05:10,635 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 454 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:10,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1735 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:05:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-11-20 12:05:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 321. [2022-11-20 12:05:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 198 states have (on average 1.2222222222222223) internal successors, (242), 201 states have internal predecessors, (242), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-20 12:05:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 449 transitions. [2022-11-20 12:05:10,673 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 449 transitions. Word has length 125 [2022-11-20 12:05:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 449 transitions. [2022-11-20 12:05:10,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-20 12:05:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 449 transitions. [2022-11-20 12:05:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-20 12:05:10,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:10,676 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:10,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 12:05:10,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:10,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1936356608, now seen corresponding path program 1 times [2022-11-20 12:05:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:10,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575490971] [2022-11-20 12:05:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:10,987 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338939608] [2022-11-20 12:05:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:10,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:10,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:11,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:05:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:11,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:05:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-20 12:05:11,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:11,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575490971] [2022-11-20 12:05:11,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:11,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338939608] [2022-11-20 12:05:11,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338939608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:11,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:11,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:05:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062833117] [2022-11-20 12:05:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:11,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:05:11,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:05:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:05:11,699 INFO L87 Difference]: Start difference. First operand 321 states and 449 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-20 12:05:12,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:12,250 INFO L93 Difference]: Finished difference Result 624 states and 883 transitions. [2022-11-20 12:05:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:05:12,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 141 [2022-11-20 12:05:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:12,255 INFO L225 Difference]: With dead ends: 624 [2022-11-20 12:05:12,255 INFO L226 Difference]: Without dead ends: 339 [2022-11-20 12:05:12,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:05:12,258 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 525 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:12,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 2324 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:05:12,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-20 12:05:12,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 321. [2022-11-20 12:05:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 198 states have (on average 1.2222222222222223) internal successors, (242), 201 states have internal predecessors, (242), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-11-20 12:05:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 449 transitions. [2022-11-20 12:05:12,284 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 449 transitions. Word has length 141 [2022-11-20 12:05:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:12,285 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 449 transitions. [2022-11-20 12:05:12,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-20 12:05:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 449 transitions. [2022-11-20 12:05:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 12:05:12,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:12,289 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:05:12,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 12:05:12,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:12,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash 962773780, now seen corresponding path program 1 times [2022-11-20 12:05:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:12,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429019130] [2022-11-20 12:05:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:12,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:12,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:12,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020227287] [2022-11-20 12:05:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:12,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:12,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:12,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:12,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:05:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:13,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2585 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:05:13,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-20 12:05:13,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:13,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:13,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429019130] [2022-11-20 12:05:13,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:13,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020227287] [2022-11-20 12:05:13,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020227287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:13,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:13,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:05:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109428364] [2022-11-20 12:05:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:05:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:13,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:05:13,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:05:13,357 INFO L87 Difference]: Start difference. First operand 321 states and 449 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 12:05:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:13,707 INFO L93 Difference]: Finished difference Result 579 states and 819 transitions. [2022-11-20 12:05:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:05:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 156 [2022-11-20 12:05:13,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:13,711 INFO L225 Difference]: With dead ends: 579 [2022-11-20 12:05:13,711 INFO L226 Difference]: Without dead ends: 323 [2022-11-20 12:05:13,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:05:13,714 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 451 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:13,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2045 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:05:13,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-20 12:05:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-11-20 12:05:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 199 states have (on average 1.221105527638191) internal successors, (243), 203 states have internal predecessors, (243), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2022-11-20 12:05:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 452 transitions. [2022-11-20 12:05:13,741 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 452 transitions. Word has length 156 [2022-11-20 12:05:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:13,743 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 452 transitions. [2022-11-20 12:05:13,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 12:05:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 452 transitions. [2022-11-20 12:05:13,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 12:05:13,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:13,747 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:05:13,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:13,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:13,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:13,959 INFO L85 PathProgramCache]: Analyzing trace with hash -19960136, now seen corresponding path program 1 times [2022-11-20 12:05:13,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:13,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285179313] [2022-11-20 12:05:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:13,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:14,043 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:14,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769655129] [2022-11-20 12:05:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:14,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:14,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:14,045 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:14,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:05:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:14,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:05:14,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-20 12:05:14,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:14,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285179313] [2022-11-20 12:05:14,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:14,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769655129] [2022-11-20 12:05:14,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769655129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:14,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:14,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:05:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134851333] [2022-11-20 12:05:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:14,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:05:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:05:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:05:14,838 INFO L87 Difference]: Start difference. First operand 323 states and 452 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 12:05:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:15,413 INFO L93 Difference]: Finished difference Result 597 states and 845 transitions. [2022-11-20 12:05:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:05:15,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 172 [2022-11-20 12:05:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:15,416 INFO L225 Difference]: With dead ends: 597 [2022-11-20 12:05:15,417 INFO L226 Difference]: Without dead ends: 339 [2022-11-20 12:05:15,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:05:15,419 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 515 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:15,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 2603 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:05:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-20 12:05:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-11-20 12:05:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 212 states have (on average 1.2311320754716981) internal successors, (261), 215 states have internal predecessors, (261), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-11-20 12:05:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 472 transitions. [2022-11-20 12:05:15,442 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 472 transitions. Word has length 172 [2022-11-20 12:05:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:15,443 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 472 transitions. [2022-11-20 12:05:15,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 12:05:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 472 transitions. [2022-11-20 12:05:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 12:05:15,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:15,447 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:15,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 12:05:15,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:15,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:15,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1282000388, now seen corresponding path program 1 times [2022-11-20 12:05:15,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:15,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456748129] [2022-11-20 12:05:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:15,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:15,760 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991933683] [2022-11-20 12:05:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:15,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:15,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:15,761 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:15,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 12:05:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:16,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:05:16,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-20 12:05:16,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:16,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:16,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456748129] [2022-11-20 12:05:16,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:16,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991933683] [2022-11-20 12:05:16,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991933683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:16,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:16,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:05:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929257547] [2022-11-20 12:05:16,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:16,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:05:16,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:16,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:05:16,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:05:16,557 INFO L87 Difference]: Start difference. First operand 337 states and 472 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 12:05:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:17,046 INFO L93 Difference]: Finished difference Result 617 states and 873 transitions. [2022-11-20 12:05:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:05:17,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 202 [2022-11-20 12:05:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:17,050 INFO L225 Difference]: With dead ends: 617 [2022-11-20 12:05:17,050 INFO L226 Difference]: Without dead ends: 345 [2022-11-20 12:05:17,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:05:17,053 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 475 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:17,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 2331 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:05:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-11-20 12:05:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 337. [2022-11-20 12:05:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 212 states have (on average 1.2311320754716981) internal successors, (261), 215 states have internal predecessors, (261), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-11-20 12:05:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 472 transitions. [2022-11-20 12:05:17,076 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 472 transitions. Word has length 202 [2022-11-20 12:05:17,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:17,076 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 472 transitions. [2022-11-20 12:05:17,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 12:05:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 472 transitions. [2022-11-20 12:05:17,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 12:05:17,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:17,081 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:17,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:17,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:17,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:17,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2080874788, now seen corresponding path program 1 times [2022-11-20 12:05:17,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695012626] [2022-11-20 12:05:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:17,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:17,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822080632] [2022-11-20 12:05:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:17,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:17,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:17,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 12:05:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:18,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:05:18,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-20 12:05:18,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:18,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:18,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695012626] [2022-11-20 12:05:18,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:18,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822080632] [2022-11-20 12:05:18,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822080632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:18,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:18,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:05:18,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756787554] [2022-11-20 12:05:18,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:18,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:05:18,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:05:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:05:18,300 INFO L87 Difference]: Start difference. First operand 337 states and 472 transitions. Second operand has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-20 12:05:19,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:19,053 INFO L93 Difference]: Finished difference Result 611 states and 863 transitions. [2022-11-20 12:05:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:05:19,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 234 [2022-11-20 12:05:19,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:19,058 INFO L225 Difference]: With dead ends: 611 [2022-11-20 12:05:19,058 INFO L226 Difference]: Without dead ends: 339 [2022-11-20 12:05:19,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:05:19,062 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 546 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:19,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 2860 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:05:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-20 12:05:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 321. [2022-11-20 12:05:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 198 states have (on average 1.2222222222222223) internal successors, (242), 201 states have internal predecessors, (242), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-11-20 12:05:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 447 transitions. [2022-11-20 12:05:19,090 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 447 transitions. Word has length 234 [2022-11-20 12:05:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:19,091 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 447 transitions. [2022-11-20 12:05:19,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-20 12:05:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 447 transitions. [2022-11-20 12:05:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 12:05:19,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:19,096 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:19,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 12:05:19,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:19,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash -880991622, now seen corresponding path program 1 times [2022-11-20 12:05:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:19,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271523447] [2022-11-20 12:05:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:19,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:19,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012081302] [2022-11-20 12:05:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:19,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:19,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:19,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:19,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 12:05:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:20,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:05:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-20 12:05:20,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:20,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:20,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271523447] [2022-11-20 12:05:20,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:20,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012081302] [2022-11-20 12:05:20,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012081302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:20,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:20,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:05:20,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772728120] [2022-11-20 12:05:20,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:20,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:20,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:20,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:20,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:20,445 INFO L87 Difference]: Start difference. First operand 321 states and 447 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:20,866 INFO L93 Difference]: Finished difference Result 642 states and 911 transitions. [2022-11-20 12:05:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:05:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 264 [2022-11-20 12:05:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:20,870 INFO L225 Difference]: With dead ends: 642 [2022-11-20 12:05:20,870 INFO L226 Difference]: Without dead ends: 357 [2022-11-20 12:05:20,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:05:20,873 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 23 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:20,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1880 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:05:20,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-20 12:05:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 329. [2022-11-20 12:05:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.2233009708737863) internal successors, (252), 209 states have internal predecessors, (252), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-11-20 12:05:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 457 transitions. [2022-11-20 12:05:20,896 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 457 transitions. Word has length 264 [2022-11-20 12:05:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:20,897 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 457 transitions. [2022-11-20 12:05:20,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 457 transitions. [2022-11-20 12:05:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 12:05:20,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:20,902 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:20,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 12:05:21,113 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:21,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1076067072, now seen corresponding path program 1 times [2022-11-20 12:05:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307067403] [2022-11-20 12:05:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:21,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:21,206 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69710210] [2022-11-20 12:05:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:21,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:21,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:21,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 12:05:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:21,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:05:22,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-20 12:05:22,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:22,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307067403] [2022-11-20 12:05:22,038 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:22,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69710210] [2022-11-20 12:05:22,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69710210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:22,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:22,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:05:22,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093662818] [2022-11-20 12:05:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:22,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:05:22,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:05:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:05:22,043 INFO L87 Difference]: Start difference. First operand 329 states and 457 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:22,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:22,089 INFO L93 Difference]: Finished difference Result 630 states and 887 transitions. [2022-11-20 12:05:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:05:22,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 264 [2022-11-20 12:05:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:22,093 INFO L225 Difference]: With dead ends: 630 [2022-11-20 12:05:22,093 INFO L226 Difference]: Without dead ends: 337 [2022-11-20 12:05:22,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:05:22,096 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 3 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1207 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 [2022-11-20 12:05:22,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1207 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-20 12:05:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 333. [2022-11-20 12:05:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 210 states have (on average 1.2190476190476192) internal successors, (256), 213 states have internal predecessors, (256), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-11-20 12:05:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 461 transitions. [2022-11-20 12:05:22,118 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 461 transitions. Word has length 264 [2022-11-20 12:05:22,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:22,119 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 461 transitions. [2022-11-20 12:05:22,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 461 transitions. [2022-11-20 12:05:22,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 12:05:22,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:22,122 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:22,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:22,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 12:05:22,333 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -848151290, now seen corresponding path program 1 times [2022-11-20 12:05:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132859436] [2022-11-20 12:05:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:22,427 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:22,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179896614] [2022-11-20 12:05:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:22,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:22,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:22,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:22,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 12:05:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:23,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 3369 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-20 12:05:23,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-20 12:05:24,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:24,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:24,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132859436] [2022-11-20 12:05:24,208 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179896614] [2022-11-20 12:05:24,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179896614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:24,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:24,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:05:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970331161] [2022-11-20 12:05:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:24,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:05:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:24,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:05:24,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:05:24,211 INFO L87 Difference]: Start difference. First operand 333 states and 461 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 12:05:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:25,128 INFO L93 Difference]: Finished difference Result 669 states and 939 transitions. [2022-11-20 12:05:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:05:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 264 [2022-11-20 12:05:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:25,131 INFO L225 Difference]: With dead ends: 669 [2022-11-20 12:05:25,132 INFO L226 Difference]: Without dead ends: 398 [2022-11-20 12:05:25,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:05:25,134 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 128 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:25,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2918 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 399 Invalid, 0 Unknown, 67 Unchecked, 0.5s Time] [2022-11-20 12:05:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-20 12:05:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 354. [2022-11-20 12:05:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 227 states have (on average 1.2158590308370043) internal successors, (276), 230 states have internal predecessors, (276), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-11-20 12:05:25,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 491 transitions. [2022-11-20 12:05:25,161 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 491 transitions. Word has length 264 [2022-11-20 12:05:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:25,162 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 491 transitions. [2022-11-20 12:05:25,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 12:05:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 491 transitions. [2022-11-20 12:05:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 12:05:25,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:25,165 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 12:05:25,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:25,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 12:05:25,378 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash -456492156, now seen corresponding path program 1 times [2022-11-20 12:05:25,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971667483] [2022-11-20 12:05:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:25,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:25,477 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:25,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238447398] [2022-11-20 12:05:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:25,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:25,479 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:25,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 12:05:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:26,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 3372 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 12:05:26,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-20 12:05:26,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:26,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:26,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971667483] [2022-11-20 12:05:26,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:26,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238447398] [2022-11-20 12:05:26,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238447398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:26,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:26,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:26,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464135014] [2022-11-20 12:05:26,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:26,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:05:26,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:26,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:05:26,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:05:26,390 INFO L87 Difference]: Start difference. First operand 354 states and 491 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:26,461 INFO L93 Difference]: Finished difference Result 683 states and 965 transitions. [2022-11-20 12:05:26,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:26,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 264 [2022-11-20 12:05:26,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:26,465 INFO L225 Difference]: With dead ends: 683 [2022-11-20 12:05:26,465 INFO L226 Difference]: Without dead ends: 374 [2022-11-20 12:05:26,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:26,468 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 8 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:26,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1662 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:26,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-20 12:05:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 362. [2022-11-20 12:05:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 235 states have (on average 1.2127659574468086) internal successors, (285), 238 states have internal predecessors, (285), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-11-20 12:05:26,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 500 transitions. [2022-11-20 12:05:26,495 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 500 transitions. Word has length 264 [2022-11-20 12:05:26,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:26,496 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 500 transitions. [2022-11-20 12:05:26,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 500 transitions. [2022-11-20 12:05:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-20 12:05:26,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:26,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:26,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:26,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:26,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 890915541, now seen corresponding path program 1 times [2022-11-20 12:05:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:26,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740077772] [2022-11-20 12:05:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:26,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:26,861 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:26,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608883000] [2022-11-20 12:05:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:26,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:26,867 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:26,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 12:05:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:27,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 3371 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 12:05:27,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:28,453 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 15 treesize of output 7 [2022-11-20 12:05:28,457 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 15 treesize of output 7 [2022-11-20 12:05:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-11-20 12:05:28,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:28,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740077772] [2022-11-20 12:05:28,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:28,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608883000] [2022-11-20 12:05:28,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608883000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:28,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:28,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:05:28,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806917237] [2022-11-20 12:05:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:28,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:05:28,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:28,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:05:28,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:05:28,487 INFO L87 Difference]: Start difference. First operand 362 states and 500 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2022-11-20 12:05:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:29,537 INFO L93 Difference]: Finished difference Result 767 states and 1073 transitions. [2022-11-20 12:05:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:05:29,538 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 266 [2022-11-20 12:05:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:29,541 INFO L225 Difference]: With dead ends: 767 [2022-11-20 12:05:29,541 INFO L226 Difference]: Without dead ends: 446 [2022-11-20 12:05:29,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:05:29,544 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 106 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:29,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3906 Invalid, 878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 778 Invalid, 0 Unknown, 92 Unchecked, 0.7s Time] [2022-11-20 12:05:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-20 12:05:29,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 410. [2022-11-20 12:05:29,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 276 states have (on average 1.213768115942029) internal successors, (335), 280 states have internal predecessors, (335), 102 states have call successors, (102), 25 states have call predecessors, (102), 30 states have return successors, (141), 104 states have call predecessors, (141), 100 states have call successors, (141) [2022-11-20 12:05:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 578 transitions. [2022-11-20 12:05:29,575 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 578 transitions. Word has length 266 [2022-11-20 12:05:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:29,576 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 578 transitions. [2022-11-20 12:05:29,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2022-11-20 12:05:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 578 transitions. [2022-11-20 12:05:29,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-20 12:05:29,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:29,579 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:29,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:29,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 12:05:29,794 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:29,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1668289777, now seen corresponding path program 1 times [2022-11-20 12:05:29,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:29,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277175071] [2022-11-20 12:05:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:29,900 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:29,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575808283] [2022-11-20 12:05:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:29,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:29,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:29,902 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:29,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 12:05:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:30,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 3356 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:05:30,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-20 12:05:30,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:30,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:30,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277175071] [2022-11-20 12:05:30,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:30,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575808283] [2022-11-20 12:05:30,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575808283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:30,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:30,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:05:30,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420858108] [2022-11-20 12:05:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:30,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:05:30,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:30,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:05:30,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:05:30,740 INFO L87 Difference]: Start difference. First operand 410 states and 578 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:30,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:30,791 INFO L93 Difference]: Finished difference Result 787 states and 1154 transitions. [2022-11-20 12:05:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:05:30,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 266 [2022-11-20 12:05:30,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:30,796 INFO L225 Difference]: With dead ends: 787 [2022-11-20 12:05:30,796 INFO L226 Difference]: Without dead ends: 413 [2022-11-20 12:05:30,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:05:30,800 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 7 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:30,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1213 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-20 12:05:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 410. [2022-11-20 12:05:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 276 states have (on average 1.210144927536232) internal successors, (334), 280 states have internal predecessors, (334), 102 states have call successors, (102), 25 states have call predecessors, (102), 30 states have return successors, (141), 104 states have call predecessors, (141), 100 states have call successors, (141) [2022-11-20 12:05:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 577 transitions. [2022-11-20 12:05:30,828 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 577 transitions. Word has length 266 [2022-11-20 12:05:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:30,829 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 577 transitions. [2022-11-20 12:05:30,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 577 transitions. [2022-11-20 12:05:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-20 12:05:30,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:30,832 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:30,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:31,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 12:05:31,044 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:31,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 615649449, now seen corresponding path program 1 times [2022-11-20 12:05:31,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:31,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160839335] [2022-11-20 12:05:31,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:31,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:31,149 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:31,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706266355] [2022-11-20 12:05:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:31,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:31,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:31,151 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:31,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 12:05:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:32,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 3401 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:05:32,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-20 12:05:32,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:32,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:32,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160839335] [2022-11-20 12:05:32,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:32,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706266355] [2022-11-20 12:05:32,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706266355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:32,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:32,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:32,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827716056] [2022-11-20 12:05:32,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:32,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:05:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:32,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:05:32,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:05:32,118 INFO L87 Difference]: Start difference. First operand 410 states and 577 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:32,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:32,407 INFO L93 Difference]: Finished difference Result 791 states and 1166 transitions. [2022-11-20 12:05:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:32,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 272 [2022-11-20 12:05:32,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:32,411 INFO L225 Difference]: With dead ends: 791 [2022-11-20 12:05:32,411 INFO L226 Difference]: Without dead ends: 417 [2022-11-20 12:05:32,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:05:32,415 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 15 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:32,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1548 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:05:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-11-20 12:05:32,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 411. [2022-11-20 12:05:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 277 states have (on average 1.2093862815884477) internal successors, (335), 281 states have internal predecessors, (335), 102 states have call successors, (102), 25 states have call predecessors, (102), 30 states have return successors, (141), 104 states have call predecessors, (141), 100 states have call successors, (141) [2022-11-20 12:05:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 578 transitions. [2022-11-20 12:05:32,444 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 578 transitions. Word has length 272 [2022-11-20 12:05:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:32,444 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 578 transitions. [2022-11-20 12:05:32,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 578 transitions. [2022-11-20 12:05:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-20 12:05:32,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:32,447 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:32,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:32,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 12:05:32,660 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:32,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash 800475555, now seen corresponding path program 1 times [2022-11-20 12:05:32,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:32,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184194483] [2022-11-20 12:05:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:32,749 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:32,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545780312] [2022-11-20 12:05:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:32,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:32,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:32,751 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:32,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 12:05:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:33,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 3386 conjuncts, 173 conjunts are in the unsatisfiable core [2022-11-20 12:05:33,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:33,733 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 [2022-11-20 12:05:34,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:05:34,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:05:34,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:05:34,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:05:34,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-20 12:05:34,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:05:34,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-20 12:05:35,223 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2697 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2697) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2698 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2698) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:05:39,993 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_2700 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_2700))) (exists ((v_ArrVal_2699 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_2699))))) is different from true [2022-11-20 12:05:41,248 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 11 treesize of output 5 [2022-11-20 12:05:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 237 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 3 not checked. [2022-11-20 12:05:41,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:05:43,041 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-20 12:05:43,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-20 12:05:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 9 proven. 68 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2022-11-20 12:05:43,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:43,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184194483] [2022-11-20 12:05:43,955 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:43,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545780312] [2022-11-20 12:05:43,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545780312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:05:43,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:05:43,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 13] total 53 [2022-11-20 12:05:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175673290] [2022-11-20 12:05:43,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:05:43,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-20 12:05:43,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-20 12:05:43,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2336, Unknown=26, NotChecked=198, Total=2756 [2022-11-20 12:05:43,958 INFO L87 Difference]: Start difference. First operand 411 states and 578 transitions. Second operand has 53 states, 47 states have (on average 3.978723404255319) internal successors, (187), 44 states have internal predecessors, (187), 18 states have call successors, (48), 8 states have call predecessors, (48), 12 states have return successors, (46), 16 states have call predecessors, (46), 17 states have call successors, (46) [2022-11-20 12:05:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:51,672 INFO L93 Difference]: Finished difference Result 1069 states and 1665 transitions. [2022-11-20 12:05:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-20 12:05:51,673 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 47 states have (on average 3.978723404255319) internal successors, (187), 44 states have internal predecessors, (187), 18 states have call successors, (48), 8 states have call predecessors, (48), 12 states have return successors, (46), 16 states have call predecessors, (46), 17 states have call successors, (46) Word has length 272 [2022-11-20 12:05:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:51,680 INFO L225 Difference]: With dead ends: 1069 [2022-11-20 12:05:51,680 INFO L226 Difference]: Without dead ends: 697 [2022-11-20 12:05:51,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 487 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=335, Invalid=4445, Unknown=58, NotChecked=274, Total=5112 [2022-11-20 12:05:51,685 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 294 mSDsluCounter, 6488 mSDsCounter, 0 mSdLazyCounter, 6427 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 6857 SdHoareTripleChecker+Invalid, 12129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 6427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5524 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:51,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 6857 Invalid, 12129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [178 Valid, 6427 Invalid, 0 Unknown, 5524 Unchecked, 5.8s Time] [2022-11-20 12:05:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-11-20 12:05:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 460. [2022-11-20 12:05:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 318 states have (on average 1.2075471698113207) internal successors, (384), 323 states have internal predecessors, (384), 104 states have call successors, (104), 28 states have call predecessors, (104), 36 states have return successors, (170), 108 states have call predecessors, (170), 102 states have call successors, (170) [2022-11-20 12:05:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 658 transitions. [2022-11-20 12:05:51,740 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 658 transitions. Word has length 272 [2022-11-20 12:05:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:51,741 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 658 transitions. [2022-11-20 12:05:51,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 47 states have (on average 3.978723404255319) internal successors, (187), 44 states have internal predecessors, (187), 18 states have call successors, (48), 8 states have call predecessors, (48), 12 states have return successors, (46), 16 states have call predecessors, (46), 17 states have call successors, (46) [2022-11-20 12:05:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 658 transitions. [2022-11-20 12:05:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-11-20 12:05:51,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:51,745 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-11-20 12:05:51,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:51,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 12:05:51,963 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:51,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:51,964 INFO L85 PathProgramCache]: Analyzing trace with hash -805219769, now seen corresponding path program 1 times [2022-11-20 12:05:51,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:51,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494576298] [2022-11-20 12:05:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:51,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:52,060 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:52,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130057637] [2022-11-20 12:05:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:52,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:52,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:52,062 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:52,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-20 12:05:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:52,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 3386 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:05:52,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-11-20 12:05:53,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:53,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494576298] [2022-11-20 12:05:53,002 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:05:53,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130057637] [2022-11-20 12:05:53,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130057637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:53,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:53,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:05:53,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334401869] [2022-11-20 12:05:53,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:53,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:05:53,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:53,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:05:53,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:05:53,004 INFO L87 Difference]: Start difference. First operand 460 states and 658 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:53,062 INFO L93 Difference]: Finished difference Result 866 states and 1272 transitions. [2022-11-20 12:05:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:05:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-11-20 12:05:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:53,068 INFO L225 Difference]: With dead ends: 866 [2022-11-20 12:05:53,068 INFO L226 Difference]: Without dead ends: 449 [2022-11-20 12:05:53,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:05:53,071 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 2 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:53,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1210 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-11-20 12:05:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 440. [2022-11-20 12:05:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 298 states have (on average 1.1845637583892616) internal successors, (353), 303 states have internal predecessors, (353), 104 states have call successors, (104), 28 states have call predecessors, (104), 36 states have return successors, (170), 108 states have call predecessors, (170), 102 states have call successors, (170) [2022-11-20 12:05:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 627 transitions. [2022-11-20 12:05:53,107 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 627 transitions. Word has length 270 [2022-11-20 12:05:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:53,108 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 627 transitions. [2022-11-20 12:05:53,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:05:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 627 transitions. [2022-11-20 12:05:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 12:05:53,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:53,111 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:53,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:53,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 12:05:53,323 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:53,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:53,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1658089085, now seen corresponding path program 1 times [2022-11-20 12:05:53,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:53,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082494571] [2022-11-20 12:05:53,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:53,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:53,424 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:05:53,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917901698] [2022-11-20 12:05:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:53,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:53,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:53,426 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:53,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-20 12:05:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:54,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 3391 conjuncts, 155 conjunts are in the unsatisfiable core [2022-11-20 12:05:54,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:54,679 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3219)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3218))))) is different from true [2022-11-20 12:05:54,702 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3219))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3218))))) is different from true [2022-11-20 12:05:55,067 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3221 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3221))) (exists ((v_ArrVal_3222 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3222))))) is different from true [2022-11-20 12:05:55,087 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3221 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3222 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3221)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3222)))) is different from true [2022-11-20 12:05:55,366 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (v_ArrVal_3221 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3222 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_67| Int)) (and (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_67| (store (select |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_67|) 0 v_ArrVal_3218)) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3221)) (= (store (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_67| (store (select |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_67|) 0 v_ArrVal_3219)) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3222) |c_#memory_$Pointer$.offset|))) (not (= (mod (select (select |c_#memory_int| |c_aws_priority_queue_is_valid_#in~queue#1.base|) (+ 56 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) 18446744073709551616) 0))) is different from true [2022-11-20 12:05:55,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:05:55,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-20 12:05:55,485 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 12:05:55,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 30 [2022-11-20 12:05:55,502 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 12:05:55,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-11-20 12:06:08,173 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3224 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3224))) (exists ((v_ArrVal_3225 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3225) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3223 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3223) |c_#memory_$Pointer$.offset|)))) is different from true [2022-11-20 12:06:08,203 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3223 (Array Int Int)) (v_ArrVal_3224 (Array Int Int)) (v_ArrVal_3225 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3225) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3223) |c_#memory_$Pointer$.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3224)))) is different from true [2022-11-20 12:06:12,701 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3228 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3228))) (exists ((v_ArrVal_3226 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3226))) (exists ((v_ArrVal_3227 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3227))))) is different from true [2022-11-20 12:06:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 249 proven. 16 refuted. 0 times theorem prover too weak. 129 trivial. 62 not checked. [2022-11-20 12:06:30,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:06:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:06:32,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082494571] [2022-11-20 12:06:32,059 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:06:32,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917901698] [2022-11-20 12:06:32,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917901698] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:06:32,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:06:32,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2022-11-20 12:06:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808448830] [2022-11-20 12:06:32,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:06:32,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-20 12:06:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:06:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-20 12:06:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1314, Unknown=63, NotChecked=648, Total=2162 [2022-11-20 12:06:32,062 INFO L87 Difference]: Start difference. First operand 440 states and 627 transitions. Second operand has 38 states, 36 states have (on average 4.305555555555555) internal successors, (155), 34 states have internal predecessors, (155), 15 states have call successors, (31), 6 states have call predecessors, (31), 12 states have return successors, (29), 15 states have call predecessors, (29), 13 states have call successors, (29) [2022-11-20 12:06:37,115 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3224 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3224))) (exists ((v_ArrVal_3225 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3225) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3223 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3223) |c_#memory_$Pointer$.offset|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3221 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3221))) (exists ((v_ArrVal_3222 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3222))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3228 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3228))) (exists ((v_ArrVal_3226 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3226))) (exists ((v_ArrVal_3227 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3227))))) (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3219)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3218)))))) is different from true [2022-11-20 12:06:48,009 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3219))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3218))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3223 (Array Int Int)) (v_ArrVal_3224 (Array Int Int)) (v_ArrVal_3225 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3225) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3223) |c_#memory_$Pointer$.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3224))))) is different from true [2022-11-20 12:06:54,459 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3218 Int) (v_ArrVal_3219 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3219))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3218))))) (exists ((v_ArrVal_3221 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3222 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3221)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3222))))) is different from true [2022-11-20 12:07:05,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:05,883 INFO L93 Difference]: Finished difference Result 977 states and 1487 transitions. [2022-11-20 12:07:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-20 12:07:05,883 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 4.305555555555555) internal successors, (155), 34 states have internal predecessors, (155), 15 states have call successors, (31), 6 states have call predecessors, (31), 12 states have return successors, (29), 15 states have call predecessors, (29), 13 states have call successors, (29) Word has length 274 [2022-11-20 12:07:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:05,889 INFO L225 Difference]: With dead ends: 977 [2022-11-20 12:07:05,889 INFO L226 Difference]: Without dead ends: 615 [2022-11-20 12:07:05,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 256 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 65.9s TimeCoverageRelationStatistics Valid=249, Invalid=2666, Unknown=99, NotChecked=1276, Total=4290 [2022-11-20 12:07:05,894 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 302 mSDsluCounter, 3830 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 13589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10208 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:05,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 4186 Invalid, 13589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 3043 Invalid, 0 Unknown, 10208 Unchecked, 3.0s Time] [2022-11-20 12:07:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-11-20 12:07:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 472. [2022-11-20 12:07:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 324 states have (on average 1.191358024691358) internal successors, (386), 330 states have internal predecessors, (386), 106 states have call successors, (106), 29 states have call predecessors, (106), 40 states have return successors, (190), 112 states have call predecessors, (190), 104 states have call successors, (190) [2022-11-20 12:07:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 682 transitions. [2022-11-20 12:07:05,973 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 682 transitions. Word has length 274 [2022-11-20 12:07:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:05,973 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 682 transitions. [2022-11-20 12:07:05,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 4.305555555555555) internal successors, (155), 34 states have internal predecessors, (155), 15 states have call successors, (31), 6 states have call predecessors, (31), 12 states have return successors, (29), 15 states have call predecessors, (29), 13 states have call successors, (29) [2022-11-20 12:07:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 682 transitions. [2022-11-20 12:07:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-20 12:07:05,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:05,977 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:07:05,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-11-20 12:07:06,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:06,191 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2065889538, now seen corresponding path program 1 times [2022-11-20 12:07:06,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:06,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547459627] [2022-11-20 12:07:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:06,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:06,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:07:06,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251699819] [2022-11-20 12:07:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:06,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:06,282 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-20 12:07:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:07,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 3403 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 12:07:07,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-20 12:07:07,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-11-20 12:07:08,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:08,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547459627] [2022-11-20 12:07:08,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:07:08,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251699819] [2022-11-20 12:07:08,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251699819] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:08,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:07:08,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [12] total 20 [2022-11-20 12:07:08,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164634482] [2022-11-20 12:07:08,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:08,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:07:08,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:08,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:07:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:07:08,362 INFO L87 Difference]: Start difference. First operand 472 states and 682 transitions. Second operand has 15 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 12:07:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:08,676 INFO L93 Difference]: Finished difference Result 946 states and 1400 transitions. [2022-11-20 12:07:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:07:08,677 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 1 states have call successors, (22) Word has length 292 [2022-11-20 12:07:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:08,681 INFO L225 Difference]: With dead ends: 946 [2022-11-20 12:07:08,682 INFO L226 Difference]: Without dead ends: 517 [2022-11-20 12:07:08,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 561 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:07:08,685 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 19 mSDsluCounter, 5436 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:08,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5860 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:07:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-11-20 12:07:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 491. [2022-11-20 12:07:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 341 states have (on average 1.18475073313783) internal successors, (404), 344 states have internal predecessors, (404), 106 states have call successors, (106), 29 states have call predecessors, (106), 42 states have return successors, (204), 117 states have call predecessors, (204), 104 states have call successors, (204) [2022-11-20 12:07:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 714 transitions. [2022-11-20 12:07:08,727 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 714 transitions. Word has length 292 [2022-11-20 12:07:08,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:08,728 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 714 transitions. [2022-11-20 12:07:08,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 12:07:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 714 transitions. [2022-11-20 12:07:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-20 12:07:08,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:08,732 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:07:08,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:08,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:08,951 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2112360049, now seen corresponding path program 1 times [2022-11-20 12:07:08,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:08,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500836086] [2022-11-20 12:07:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:09,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:07:09,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353774803] [2022-11-20 12:07:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:09,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:09,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:09,061 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:09,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-20 12:07:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:10,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 3401 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-20 12:07:10,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:10,125 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 [2022-11-20 12:07:10,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:07:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:12,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:07:15,627 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3695 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3695) |c_#memory_int|)) is different from true [2022-11-20 12:07:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 272 proven. 21 refuted. 3 times theorem prover too weak. 175 trivial. 3 not checked. [2022-11-20 12:07:16,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:17,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:17,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500836086] [2022-11-20 12:07:17,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:07:17,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353774803] [2022-11-20 12:07:17,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353774803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:17,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:07:17,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-20 12:07:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008265989] [2022-11-20 12:07:17,273 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:07:17,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 12:07:17,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 12:07:17,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=858, Unknown=36, NotChecked=60, Total=1056 [2022-11-20 12:07:17,275 INFO L87 Difference]: Start difference. First operand 491 states and 714 transitions. Second operand has 32 states, 28 states have (on average 4.785714285714286) internal successors, (134), 27 states have internal predecessors, (134), 12 states have call successors, (28), 7 states have call predecessors, (28), 12 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2022-11-20 12:07:17,954 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3693 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3693))) (exists ((v_ArrVal_3695 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3695) |c_#memory_int|)) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_332| Int) (v_ArrVal_3692 Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_332|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_332| v_ArrVal_3692))))) is different from true [2022-11-20 12:07:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:20,749 INFO L93 Difference]: Finished difference Result 1111 states and 1707 transitions. [2022-11-20 12:07:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 12:07:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 4.785714285714286) internal successors, (134), 27 states have internal predecessors, (134), 12 states have call successors, (28), 7 states have call predecessors, (28), 12 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) Word has length 278 [2022-11-20 12:07:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:20,755 INFO L225 Difference]: With dead ends: 1111 [2022-11-20 12:07:20,755 INFO L226 Difference]: Without dead ends: 677 [2022-11-20 12:07:20,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 399 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=151, Invalid=1368, Unknown=49, NotChecked=154, Total=1722 [2022-11-20 12:07:20,758 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 316 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 8328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5180 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:20,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 3719 Invalid, 8328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 2800 Invalid, 0 Unknown, 5180 Unchecked, 2.8s Time] [2022-11-20 12:07:20,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-20 12:07:20,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 515. [2022-11-20 12:07:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 360 states have (on average 1.1833333333333333) internal successors, (426), 364 states have internal predecessors, (426), 108 states have call successors, (108), 30 states have call predecessors, (108), 45 states have return successors, (217), 120 states have call predecessors, (217), 106 states have call successors, (217) [2022-11-20 12:07:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 751 transitions. [2022-11-20 12:07:20,811 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 751 transitions. Word has length 278 [2022-11-20 12:07:20,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:20,811 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 751 transitions. [2022-11-20 12:07:20,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 4.785714285714286) internal successors, (134), 27 states have internal predecessors, (134), 12 states have call successors, (28), 7 states have call predecessors, (28), 12 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2022-11-20 12:07:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 751 transitions. [2022-11-20 12:07:20,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-20 12:07:20,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:20,815 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:07:20,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:21,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:21,029 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash 464585264, now seen corresponding path program 1 times [2022-11-20 12:07:21,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:07:21,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746308517] [2022-11-20 12:07:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:07:21,153 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:07:21,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112741119] [2022-11-20 12:07:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:21,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:07:21,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:21,155 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:07:21,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-20 12:07:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:22,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 3420 conjuncts, 147 conjunts are in the unsatisfiable core [2022-11-20 12:07:22,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:22,653 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3976 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3976) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3977 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3977) |c_#memory_$Pointer$.offset|)))) is different from true [2022-11-20 12:07:22,819 WARN L859 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (select (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3976 (Array Int Int)) (v_ArrVal_3977 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3977) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3976) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-20 12:07:22,907 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 12:07:22,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2022-11-20 12:07:22,928 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 12:07:22,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-20 12:07:22,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-20 12:07:22,944 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 12:07:31,832 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3979 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3979) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3978 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3978) |c_#memory_int|)) (exists ((v_ArrVal_3980 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3980))))) is different from true [2022-11-20 12:07:44,896 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3981 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3981))) is different from true [2022-11-20 12:07:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 299 proven. 36 refuted. 3 times theorem prover too weak. 75 trivial. 26 not checked. [2022-11-20 12:07:57,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:59,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:07:59,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746308517] [2022-11-20 12:07:59,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:07:59,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112741119] [2022-11-20 12:07:59,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112741119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:59,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:07:59,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2022-11-20 12:07:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055673542] [2022-11-20 12:07:59,001 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:07:59,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-20 12:07:59,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:07:59,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-20 12:07:59,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1551, Unknown=127, NotChecked=340, Total=2162 [2022-11-20 12:07:59,004 INFO L87 Difference]: Start difference. First operand 515 states and 751 transitions. Second operand has 40 states, 39 states have (on average 4.051282051282051) internal successors, (158), 35 states have internal predecessors, (158), 16 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) [2022-11-20 12:07:59,548 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3979 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3979) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3978 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3978) |c_#memory_int|)) (exists ((v_ArrVal_3980 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3980))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3981 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3981))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_3976 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3976) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3977 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3977) |c_#memory_$Pointer$.offset|))))) is different from true [2022-11-20 12:08:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:25,689 INFO L93 Difference]: Finished difference Result 1571 states and 2479 transitions. [2022-11-20 12:08:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-20 12:08:25,694 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.051282051282051) internal successors, (158), 35 states have internal predecessors, (158), 16 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) Word has length 276 [2022-11-20 12:08:25,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:25,705 INFO L225 Difference]: With dead ends: 1571 [2022-11-20 12:08:25,705 INFO L226 Difference]: Without dead ends: 1099 [2022-11-20 12:08:25,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=449, Invalid=4468, Unknown=215, NotChecked=720, Total=5852 [2022-11-20 12:08:25,712 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 697 mSDsluCounter, 6945 mSDsCounter, 0 mSdLazyCounter, 5554 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 17851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 5554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11819 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:25,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 7438 Invalid, 17851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [478 Valid, 5554 Invalid, 0 Unknown, 11819 Unchecked, 5.7s Time] [2022-11-20 12:08:25,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-11-20 12:08:25,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 867. [2022-11-20 12:08:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 609 states have (on average 1.174055829228243) internal successors, (715), 615 states have internal predecessors, (715), 190 states have call successors, (190), 34 states have call predecessors, (190), 66 states have return successors, (500), 217 states have call predecessors, (500), 188 states have call successors, (500) [2022-11-20 12:08:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1405 transitions. [2022-11-20 12:08:25,837 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1405 transitions. Word has length 276 [2022-11-20 12:08:25,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:25,837 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1405 transitions. [2022-11-20 12:08:25,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.051282051282051) internal successors, (158), 35 states have internal predecessors, (158), 16 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) [2022-11-20 12:08:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1405 transitions. [2022-11-20 12:08:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-20 12:08:25,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:25,843 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:25,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:08:26,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:26,062 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:26,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1818747670, now seen corresponding path program 1 times [2022-11-20 12:08:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:26,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200238856] [2022-11-20 12:08:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:26,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:08:26,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3444213] [2022-11-20 12:08:26,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:26,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:26,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:26,152 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:26,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-20 12:08:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:27,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3435 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:08:27,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-20 12:08:27,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:27,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:27,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200238856] [2022-11-20 12:08:27,217 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:08:27,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3444213] [2022-11-20 12:08:27,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3444213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:27,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:27,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:08:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086667218] [2022-11-20 12:08:27,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:27,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:08:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:27,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:08:27,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:08:27,219 INFO L87 Difference]: Start difference. First operand 867 states and 1405 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 12:08:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:27,581 INFO L93 Difference]: Finished difference Result 1654 states and 2841 transitions. [2022-11-20 12:08:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:08:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 284 [2022-11-20 12:08:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:27,591 INFO L225 Difference]: With dead ends: 1654 [2022-11-20 12:08:27,591 INFO L226 Difference]: Without dead ends: 867 [2022-11-20 12:08:27,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:08:27,601 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 10 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:27,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1555 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:08:27,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-11-20 12:08:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-11-20 12:08:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 609 states have (on average 1.167487684729064) internal successors, (711), 615 states have internal predecessors, (711), 190 states have call successors, (190), 34 states have call predecessors, (190), 66 states have return successors, (478), 217 states have call predecessors, (478), 188 states have call successors, (478) [2022-11-20 12:08:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1379 transitions. [2022-11-20 12:08:27,702 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1379 transitions. Word has length 284 [2022-11-20 12:08:27,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:27,703 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1379 transitions. [2022-11-20 12:08:27,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 12:08:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1379 transitions. [2022-11-20 12:08:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-20 12:08:27,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:27,708 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:27,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:08:27,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 12:08:27,928 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:27,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:27,929 INFO L85 PathProgramCache]: Analyzing trace with hash 45736123, now seen corresponding path program 1 times [2022-11-20 12:08:27,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:27,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641631220] [2022-11-20 12:08:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:27,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:28,012 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:08:28,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268316198] [2022-11-20 12:08:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:28,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:28,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:28,014 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:28,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-20 12:08:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-20 12:08:29,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:29,515 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4481 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4479 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4479)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4481)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:08:29,537 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4481 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4479 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4481))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4479)) |c_#memory_$Pointer$.base|))) is different from true [2022-11-20 12:08:29,629 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:08:29,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 42 [2022-11-20 12:08:29,659 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:08:29,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-11-20 12:08:30,393 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4486 Int) (v_ArrVal_4485 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4486)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4485)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:08:45,463 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 25 treesize of output 17 [2022-11-20 12:08:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 288 proven. 52 refuted. 15 times theorem prover too weak. 75 trivial. 19 not checked. [2022-11-20 12:08:45,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:08:48,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641631220] [2022-11-20 12:08:48,154 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:08:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268316198] [2022-11-20 12:08:48,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268316198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:08:48,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:08:48,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-20 12:08:48,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037785916] [2022-11-20 12:08:48,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:08:48,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 12:08:48,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:48,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 12:08:48,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=756, Unknown=33, NotChecked=174, Total=1056 [2022-11-20 12:08:48,157 INFO L87 Difference]: Start difference. First operand 867 states and 1379 transitions. Second operand has 32 states, 29 states have (on average 5.9655172413793105) internal successors, (173), 29 states have internal predecessors, (173), 14 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 12 states have call predecessors, (32), 14 states have call successors, (32) [2022-11-20 12:08:48,711 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_4481 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4479 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4479)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4481)) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4486 Int) (v_ArrVal_4485 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4486)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4485)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-11-20 12:08:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:56,105 INFO L93 Difference]: Finished difference Result 2002 states and 3210 transitions. [2022-11-20 12:08:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 12:08:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 5.9655172413793105) internal successors, (173), 29 states have internal predecessors, (173), 14 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 12 states have call predecessors, (32), 14 states have call successors, (32) Word has length 286 [2022-11-20 12:08:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:56,156 INFO L225 Difference]: With dead ends: 2002 [2022-11-20 12:08:56,156 INFO L226 Difference]: Without dead ends: 1336 [2022-11-20 12:08:56,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 338 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=159, Invalid=1304, Unknown=35, NotChecked=308, Total=1806 [2022-11-20 12:08:56,165 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 316 mSDsluCounter, 5067 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 9279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5025 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:56,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 5500 Invalid, 9279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 4070 Invalid, 0 Unknown, 5025 Unchecked, 4.2s Time] [2022-11-20 12:08:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2022-11-20 12:08:56,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 987. [2022-11-20 12:08:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 709 states have (on average 1.1692524682651622) internal successors, (829), 718 states have internal predecessors, (829), 200 states have call successors, (200), 38 states have call predecessors, (200), 76 states have return successors, (559), 230 states have call predecessors, (559), 198 states have call successors, (559) [2022-11-20 12:08:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1588 transitions. [2022-11-20 12:08:56,291 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1588 transitions. Word has length 286 [2022-11-20 12:08:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:56,292 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1588 transitions. [2022-11-20 12:08:56,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 5.9655172413793105) internal successors, (173), 29 states have internal predecessors, (173), 14 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 12 states have call predecessors, (32), 14 states have call successors, (32) [2022-11-20 12:08:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1588 transitions. [2022-11-20 12:08:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-20 12:08:56,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:56,302 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:56,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:08:56,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 12:08:56,516 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:56,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1133052763, now seen corresponding path program 1 times [2022-11-20 12:08:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:56,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574712500] [2022-11-20 12:08:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:56,600 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:08:56,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957456713] [2022-11-20 12:08:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:56,602 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:56,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-20 12:08:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:57,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 3485 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-20 12:08:57,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:57,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 12:08:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 281 proven. 17 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-20 12:08:58,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:08:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 57 proven. 50 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-11-20 12:08:59,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:59,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574712500] [2022-11-20 12:08:59,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:08:59,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957456713] [2022-11-20 12:08:59,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957456713] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:08:59,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:08:59,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 32 [2022-11-20 12:08:59,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808166542] [2022-11-20 12:08:59,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:08:59,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 12:08:59,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:59,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 12:08:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=922, Unknown=0, NotChecked=0, Total=992 [2022-11-20 12:08:59,526 INFO L87 Difference]: Start difference. First operand 987 states and 1588 transitions. Second operand has 32 states, 27 states have (on average 7.148148148148148) internal successors, (193), 23 states have internal predecessors, (193), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (42), 13 states have call predecessors, (42), 8 states have call successors, (42) [2022-11-20 12:09:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:01,287 INFO L93 Difference]: Finished difference Result 1902 states and 3029 transitions. [2022-11-20 12:09:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 12:09:01,287 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 7.148148148148148) internal successors, (193), 23 states have internal predecessors, (193), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (42), 13 states have call predecessors, (42), 8 states have call successors, (42) Word has length 302 [2022-11-20 12:09:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:01,294 INFO L225 Difference]: With dead ends: 1902 [2022-11-20 12:09:01,294 INFO L226 Difference]: Without dead ends: 1055 [2022-11-20 12:09:01,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 568 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=1378, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 12:09:01,299 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 40 mSDsluCounter, 9947 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 10343 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:01,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 10343 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 12:09:01,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2022-11-20 12:09:01,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 995. [2022-11-20 12:09:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 730 states have (on average 1.163013698630137) internal successors, (849), 741 states have internal predecessors, (849), 186 states have call successors, (186), 38 states have call predecessors, (186), 77 states have return successors, (510), 215 states have call predecessors, (510), 184 states have call successors, (510) [2022-11-20 12:09:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1545 transitions. [2022-11-20 12:09:01,405 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1545 transitions. Word has length 302 [2022-11-20 12:09:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:01,406 INFO L495 AbstractCegarLoop]: Abstraction has 995 states and 1545 transitions. [2022-11-20 12:09:01,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 7.148148148148148) internal successors, (193), 23 states have internal predecessors, (193), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (42), 13 states have call predecessors, (42), 8 states have call successors, (42) [2022-11-20 12:09:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1545 transitions. [2022-11-20 12:09:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-20 12:09:01,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:01,415 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:01,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:01,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:01,630 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:01,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 301944089, now seen corresponding path program 2 times [2022-11-20 12:09:01,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:01,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756088660] [2022-11-20 12:09:01,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:01,730 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:09:01,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056639619] [2022-11-20 12:09:01,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:09:01,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:01,732 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:01,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-20 12:09:03,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:09:03,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:09:03,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 3490 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 12:09:03,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:03,354 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 12 treesize of output 6 [2022-11-20 12:09:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-20 12:09:03,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756088660] [2022-11-20 12:09:03,374 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:09:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056639619] [2022-11-20 12:09:03,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056639619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:03,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:03,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:09:03,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20678089] [2022-11-20 12:09:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:03,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:09:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:09:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:09:03,376 INFO L87 Difference]: Start difference. First operand 995 states and 1545 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-20 12:09:06,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:06,496 INFO L93 Difference]: Finished difference Result 1994 states and 3170 transitions. [2022-11-20 12:09:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 12:09:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 304 [2022-11-20 12:09:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:06,505 INFO L225 Difference]: With dead ends: 1994 [2022-11-20 12:09:06,505 INFO L226 Difference]: Without dead ends: 1079 [2022-11-20 12:09:06,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:09:06,513 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 289 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 2683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:06,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 2307 Invalid, 2683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 12:09:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-11-20 12:09:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1007. [2022-11-20 12:09:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 742 states have (on average 1.1482479784366577) internal successors, (852), 750 states have internal predecessors, (852), 186 states have call successors, (186), 38 states have call predecessors, (186), 77 states have return successors, (510), 218 states have call predecessors, (510), 184 states have call successors, (510) [2022-11-20 12:09:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1548 transitions. [2022-11-20 12:09:06,622 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1548 transitions. Word has length 304 [2022-11-20 12:09:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:06,623 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1548 transitions. [2022-11-20 12:09:06,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-20 12:09:06,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1548 transitions. [2022-11-20 12:09:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-20 12:09:06,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:06,631 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:06,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:06,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:06,848 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:06,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1752494485, now seen corresponding path program 2 times [2022-11-20 12:09:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:06,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870979973] [2022-11-20 12:09:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:06,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:06,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:09:06,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696575193] [2022-11-20 12:09:06,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:09:06,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:06,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:06,941 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:06,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-20 12:09:09,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:09:09,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:09:09,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3439 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-20 12:09:09,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 12:09:09,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:09,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:09,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870979973] [2022-11-20 12:09:09,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:09:09,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696575193] [2022-11-20 12:09:09,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696575193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:09,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:09,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:09:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298078467] [2022-11-20 12:09:09,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:09,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:09:09,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:09,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:09:09,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:09:09,999 INFO L87 Difference]: Start difference. First operand 1007 states and 1548 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 12 states have internal predecessors, (107), 7 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 12:09:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:11,262 INFO L93 Difference]: Finished difference Result 1872 states and 2894 transitions. [2022-11-20 12:09:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:09:11,267 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 12 states have internal predecessors, (107), 7 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 288 [2022-11-20 12:09:11,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:11,277 INFO L225 Difference]: With dead ends: 1872 [2022-11-20 12:09:11,277 INFO L226 Difference]: Without dead ends: 1057 [2022-11-20 12:09:11,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:09:11,286 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 135 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:11,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3122 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 12:09:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-20 12:09:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 979. [2022-11-20 12:09:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 716 states have (on average 1.1452513966480447) internal successors, (820), 723 states have internal predecessors, (820), 186 states have call successors, (186), 38 states have call predecessors, (186), 75 states have return successors, (495), 217 states have call predecessors, (495), 184 states have call successors, (495) [2022-11-20 12:09:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1501 transitions. [2022-11-20 12:09:11,400 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1501 transitions. Word has length 288 [2022-11-20 12:09:11,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:11,401 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1501 transitions. [2022-11-20 12:09:11,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 12 states have internal predecessors, (107), 7 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 12:09:11,402 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1501 transitions. [2022-11-20 12:09:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 12:09:11,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:11,410 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:11,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:11,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:11,627 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1065323012, now seen corresponding path program 1 times [2022-11-20 12:09:11,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:11,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309828258] [2022-11-20 12:09:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:11,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:11,721 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:09:11,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720930602] [2022-11-20 12:09:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:11,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:11,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:11,723 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:11,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-20 12:09:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:12,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 3483 conjuncts, 98 conjunts are in the unsatisfiable core [2022-11-20 12:09:12,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:15,224 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_35| Int) (|v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_27| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_35|) (+ 40 |v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_27|)) 0))) (exists ((|v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_35| Int) (|v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_27| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_35|) (+ 40 |v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_27|)) 0)))) is different from true [2022-11-20 12:09:15,894 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5333 Int) (v_ArrVal_5331 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5333))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5331))))) is different from true [2022-11-20 12:09:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 307 proven. 84 refuted. 8 times theorem prover too weak. 80 trivial. 3 not checked. [2022-11-20 12:09:27,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:09:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:29,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309828258] [2022-11-20 12:09:29,595 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:09:29,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720930602] [2022-11-20 12:09:29,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720930602] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:09:29,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:09:29,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-11-20 12:09:29,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389278816] [2022-11-20 12:09:29,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:09:29,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:09:29,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:29,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:09:29,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=467, Unknown=26, NotChecked=90, Total=650 [2022-11-20 12:09:29,598 INFO L87 Difference]: Start difference. First operand 979 states and 1501 transitions. Second operand has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 24 states have internal predecessors, (186), 13 states have call successors, (39), 6 states have call predecessors, (39), 10 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-20 12:09:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:48,317 INFO L93 Difference]: Finished difference Result 1957 states and 2941 transitions. [2022-11-20 12:09:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-20 12:09:48,318 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 24 states have internal predecessors, (186), 13 states have call successors, (39), 6 states have call predecessors, (39), 10 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) Word has length 312 [2022-11-20 12:09:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:48,325 INFO L225 Difference]: With dead ends: 1957 [2022-11-20 12:09:48,325 INFO L226 Difference]: Without dead ends: 1089 [2022-11-20 12:09:48,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 374 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=182, Invalid=1347, Unknown=39, NotChecked=154, Total=1722 [2022-11-20 12:09:48,331 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 95 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1905 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:48,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 5531 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1089 Invalid, 0 Unknown, 1905 Unchecked, 1.2s Time] [2022-11-20 12:09:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-11-20 12:09:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1060. [2022-11-20 12:09:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 778 states have (on average 1.1452442159383034) internal successors, (891), 787 states have internal predecessors, (891), 196 states have call successors, (196), 45 states have call predecessors, (196), 84 states have return successors, (534), 227 states have call predecessors, (534), 194 states have call successors, (534) [2022-11-20 12:09:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1621 transitions. [2022-11-20 12:09:48,451 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1621 transitions. Word has length 312 [2022-11-20 12:09:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:48,451 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1621 transitions. [2022-11-20 12:09:48,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 24 states have internal predecessors, (186), 13 states have call successors, (39), 6 states have call predecessors, (39), 10 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-20 12:09:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1621 transitions. [2022-11-20 12:09:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-20 12:09:48,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:48,460 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-11-20 12:09:48,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-20 12:09:48,675 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:48,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:48,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1614842780, now seen corresponding path program 1 times [2022-11-20 12:09:48,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:48,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656256819] [2022-11-20 12:09:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:48,786 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:09:48,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666061885] [2022-11-20 12:09:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:48,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:48,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:48,791 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:48,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-20 12:09:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:49,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3427 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 12:09:49,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 273 proven. 12 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-20 12:09:50,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:09:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-11-20 12:09:51,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656256819] [2022-11-20 12:09:51,476 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:09:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666061885] [2022-11-20 12:09:51,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666061885] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:09:51,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:09:51,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2022-11-20 12:09:51,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173864294] [2022-11-20 12:09:51,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:09:51,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 12:09:51,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:51,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 12:09:51,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-11-20 12:09:51,479 INFO L87 Difference]: Start difference. First operand 1060 states and 1621 transitions. Second operand has 26 states, 23 states have (on average 8.26086956521739) internal successors, (190), 17 states have internal predecessors, (190), 7 states have call successors, (37), 3 states have call predecessors, (37), 9 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) [2022-11-20 12:09:52,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:52,409 INFO L93 Difference]: Finished difference Result 2085 states and 3172 transitions. [2022-11-20 12:09:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:09:52,410 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 8.26086956521739) internal successors, (190), 17 states have internal predecessors, (190), 7 states have call successors, (37), 3 states have call predecessors, (37), 9 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) Word has length 301 [2022-11-20 12:09:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:52,420 INFO L225 Difference]: With dead ends: 2085 [2022-11-20 12:09:52,420 INFO L226 Difference]: Without dead ends: 1078 [2022-11-20 12:09:52,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 572 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-11-20 12:09:52,425 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 28 mSDsluCounter, 8006 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 8416 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:52,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 8416 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 12:09:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-11-20 12:09:52,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1018. [2022-11-20 12:09:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 744 states have (on average 1.1491935483870968) internal successors, (855), 749 states have internal predecessors, (855), 194 states have call successors, (194), 45 states have call predecessors, (194), 78 states have return successors, (481), 223 states have call predecessors, (481), 192 states have call successors, (481) [2022-11-20 12:09:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1530 transitions. [2022-11-20 12:09:52,552 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1530 transitions. Word has length 301 [2022-11-20 12:09:52,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:52,553 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1530 transitions. [2022-11-20 12:09:52,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 8.26086956521739) internal successors, (190), 17 states have internal predecessors, (190), 7 states have call successors, (37), 3 states have call predecessors, (37), 9 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) [2022-11-20 12:09:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1530 transitions. [2022-11-20 12:09:52,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-20 12:09:52,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:52,561 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:52,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:52,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-20 12:09:52,776 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:52,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:52,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1963873925, now seen corresponding path program 1 times [2022-11-20 12:09:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:52,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495592479] [2022-11-20 12:09:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:52,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:09:52,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306850472] [2022-11-20 12:09:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:52,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:52,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:52,918 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:52,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-20 12:09:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:54,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 172 conjunts are in the unsatisfiable core [2022-11-20 12:09:54,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:54,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 12:09:54,842 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5749 Int) (v_ArrVal_5748 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5749))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5748)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:09:54,862 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5749 Int) (v_ArrVal_5748 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5749)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5748)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:09:54,937 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:09:54,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 50 [2022-11-20 12:09:54,962 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:09:54,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 44 [2022-11-20 12:09:56,311 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5754 Int) (v_ArrVal_5752 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5752)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5754))))) is different from true [2022-11-20 12:10:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 285 proven. 60 refuted. 15 times theorem prover too weak. 70 trivial. 19 not checked. [2022-11-20 12:10:07,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:10:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495592479] [2022-11-20 12:10:10,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:10:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306850472] [2022-11-20 12:10:10,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306850472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:10:10,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:10:10,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-11-20 12:10:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915974248] [2022-11-20 12:10:10,974 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:10:10,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-20 12:10:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-20 12:10:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1409, Unknown=59, NotChecked=234, Total=1806 [2022-11-20 12:10:10,976 INFO L87 Difference]: Start difference. First operand 1018 states and 1530 transitions. Second operand has 39 states, 33 states have (on average 5.393939393939394) internal successors, (178), 36 states have internal predecessors, (178), 16 states have call successors, (34), 5 states have call predecessors, (34), 12 states have return successors, (32), 13 states have call predecessors, (32), 16 states have call successors, (32) [2022-11-20 12:10:13,344 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5749 Int) (v_ArrVal_5748 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5749))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5748)) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5754 Int) (v_ArrVal_5752 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5752)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5754)))))) is different from true [2022-11-20 12:10:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:30,006 INFO L93 Difference]: Finished difference Result 2206 states and 3321 transitions. [2022-11-20 12:10:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-20 12:10:30,007 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 5.393939393939394) internal successors, (178), 36 states have internal predecessors, (178), 16 states have call successors, (34), 5 states have call predecessors, (34), 12 states have return successors, (32), 13 states have call predecessors, (32), 16 states have call successors, (32) Word has length 286 [2022-11-20 12:10:30,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:30,018 INFO L225 Difference]: With dead ends: 2206 [2022-11-20 12:10:30,018 INFO L226 Difference]: Without dead ends: 1420 [2022-11-20 12:10:30,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 331 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=258, Invalid=3974, Unknown=74, NotChecked=524, Total=4830 [2022-11-20 12:10:30,022 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 279 mSDsluCounter, 6420 mSDsCounter, 0 mSdLazyCounter, 6541 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 6780 SdHoareTripleChecker+Invalid, 10631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 6541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3908 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:30,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 6780 Invalid, 10631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [182 Valid, 6541 Invalid, 0 Unknown, 3908 Unchecked, 6.4s Time] [2022-11-20 12:10:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-11-20 12:10:30,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1070. [2022-11-20 12:10:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 784 states have (on average 1.1454081632653061) internal successors, (898), 789 states have internal predecessors, (898), 201 states have call successors, (201), 48 states have call predecessors, (201), 83 states have return successors, (507), 232 states have call predecessors, (507), 199 states have call successors, (507) [2022-11-20 12:10:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1606 transitions. [2022-11-20 12:10:30,138 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1606 transitions. Word has length 286 [2022-11-20 12:10:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:30,138 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1606 transitions. [2022-11-20 12:10:30,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 5.393939393939394) internal successors, (178), 36 states have internal predecessors, (178), 16 states have call successors, (34), 5 states have call predecessors, (34), 12 states have return successors, (32), 13 states have call predecessors, (32), 16 states have call successors, (32) [2022-11-20 12:10:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1606 transitions. [2022-11-20 12:10:30,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 12:10:30,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:30,146 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-11-20 12:10:30,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-20 12:10:30,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:10:30,359 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:30,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2030541589, now seen corresponding path program 1 times [2022-11-20 12:10:30,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:30,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968637477] [2022-11-20 12:10:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:30,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:30,435 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:10:30,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573561493] [2022-11-20 12:10:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:30,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:10:30,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:10:30,437 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:10:30,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-20 12:10:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:31,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 221 conjunts are in the unsatisfiable core [2022-11-20 12:10:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:44,584 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5981 (Array Int Int)) (v_ArrVal_5978 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5977 Int)) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5981) |c_#memory_int|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5978))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5977))))) is different from true [2022-11-20 12:11:08,096 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5983 Int) (v_ArrVal_5982 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5983))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5982)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:11:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 303 proven. 75 refuted. 1 times theorem prover too weak. 76 trivial. 9 not checked. [2022-11-20 12:11:55,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:58,128 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_s_sift_up_~queue.offset 16)) (.cse2 (+ c_s_sift_up_~queue.offset 80))) (and (forall ((v_ArrVal_6034 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| Int)) (or (not (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| v_ArrVal_6034) c_s_sift_up_~queue.base) .cse0) 18446744073709551616) 0)) (forall ((v_ArrVal_6032 Int) (v_ArrVal_6030 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465| Int)) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466|) 0 v_ArrVal_6032)))) (store .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465| (store (select .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465|) 0 v_ArrVal_6030))) c_s_sift_up_~queue.base) .cse2) 0)))) (forall ((v_ArrVal_6034 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| Int)) (or (not (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| v_ArrVal_6034) c_s_sift_up_~queue.base) .cse0) 18446744073709551616) 0)) (forall ((v_ArrVal_6031 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465| Int) (v_ArrVal_6033 Int)) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_466|) 0 v_ArrVal_6033)))) (store .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465| (store (select .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_465|) 0 v_ArrVal_6031))) c_s_sift_up_~queue.base) .cse2) 0)))))) is different from false [2022-11-20 12:11:58,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:58,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968637477] [2022-11-20 12:11:58,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:11:58,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573561493] [2022-11-20 12:11:58,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573561493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:58,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:11:58,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2022-11-20 12:11:58,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601547430] [2022-11-20 12:11:58,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:58,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-20 12:11:58,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:58,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-20 12:11:58,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2219, Unknown=167, NotChecked=300, Total=2862 [2022-11-20 12:11:58,137 INFO L87 Difference]: Start difference. First operand 1070 states and 1606 transitions. Second operand has 47 states, 43 states have (on average 3.9767441860465116) internal successors, (171), 41 states have internal predecessors, (171), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 15 states have call predecessors, (32), 16 states have call successors, (32) [2022-11-20 12:11:58,973 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5981 (Array Int Int)) (v_ArrVal_5978 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5977 Int)) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5981) |c_#memory_int|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5978))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5977))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5983 Int) (v_ArrVal_5982 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5983))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5982)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-11-20 12:12:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:47,465 INFO L93 Difference]: Finished difference Result 2220 states and 3372 transitions. [2022-11-20 12:12:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-20 12:12:47,466 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 43 states have (on average 3.9767441860465116) internal successors, (171), 41 states have internal predecessors, (171), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 15 states have call predecessors, (32), 16 states have call successors, (32) Word has length 287 [2022-11-20 12:12:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:47,479 INFO L225 Difference]: With dead ends: 2220 [2022-11-20 12:12:47,480 INFO L226 Difference]: Without dead ends: 1412 [2022-11-20 12:12:47,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 315 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 125.5s TimeCoverageRelationStatistics Valid=320, Invalid=4128, Unknown=260, NotChecked=548, Total=5256 [2022-11-20 12:12:47,488 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 323 mSDsluCounter, 5528 mSDsCounter, 0 mSdLazyCounter, 4734 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 11664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 4734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6771 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:47,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 5905 Invalid, 11664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [159 Valid, 4734 Invalid, 0 Unknown, 6771 Unchecked, 5.9s Time] [2022-11-20 12:12:47,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-11-20 12:12:47,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1223. [2022-11-20 12:12:47,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 914 states have (on average 1.1444201312910285) internal successors, (1046), 919 states have internal predecessors, (1046), 214 states have call successors, (214), 53 states have call predecessors, (214), 93 states have return successors, (561), 250 states have call predecessors, (561), 212 states have call successors, (561) [2022-11-20 12:12:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1821 transitions. [2022-11-20 12:12:47,714 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1821 transitions. Word has length 287 [2022-11-20 12:12:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:47,715 INFO L495 AbstractCegarLoop]: Abstraction has 1223 states and 1821 transitions. [2022-11-20 12:12:47,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 43 states have (on average 3.9767441860465116) internal successors, (171), 41 states have internal predecessors, (171), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 15 states have call predecessors, (32), 16 states have call successors, (32) [2022-11-20 12:12:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1821 transitions. [2022-11-20 12:12:47,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-20 12:12:47,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:47,724 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:47,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-20 12:12:47,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:12:47,940 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:12:47,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash 154666389, now seen corresponding path program 2 times [2022-11-20 12:12:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:47,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016878740] [2022-11-20 12:12:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:47,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:48,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:12:48,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076940488] [2022-11-20 12:12:48,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:12:48,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:12:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:12:48,032 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:12:48,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-20 12:12:51,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:12:51,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:12:51,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3439 conjuncts, 141 conjunts are in the unsatisfiable core [2022-11-20 12:12:51,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:12:51,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 12:12:52,264 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6260 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6259 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6259))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6260))))) is different from true [2022-11-20 12:12:52,291 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6260 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6259 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6260)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6259))))) is different from true [2022-11-20 12:12:52,443 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:12:52,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 50 [2022-11-20 12:12:52,476 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:12:52,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 44 [2022-11-20 12:12:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 189 proven. 72 refuted. 12 times theorem prover too weak. 165 trivial. 19 not checked. [2022-11-20 12:12:54,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:12:56,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:56,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016878740] [2022-11-20 12:12:56,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:12:56,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076940488] [2022-11-20 12:12:56,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076940488] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:12:56,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:12:56,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-11-20 12:12:56,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122283139] [2022-11-20 12:12:56,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:12:56,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-20 12:12:56,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:56,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-20 12:12:56,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1942, Unknown=2, NotChecked=178, Total=2256 [2022-11-20 12:12:56,147 INFO L87 Difference]: Start difference. First operand 1223 states and 1821 transitions. Second operand has 37 states, 32 states have (on average 4.90625) internal successors, (157), 34 states have internal predecessors, (157), 17 states have call successors, (33), 5 states have call predecessors, (33), 11 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-11-20 12:13:18,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:18,207 INFO L93 Difference]: Finished difference Result 2290 states and 3354 transitions. [2022-11-20 12:13:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-20 12:13:18,207 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.90625) internal successors, (157), 34 states have internal predecessors, (157), 17 states have call successors, (33), 5 states have call predecessors, (33), 11 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) Word has length 288 [2022-11-20 12:13:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:18,216 INFO L225 Difference]: With dead ends: 2290 [2022-11-20 12:13:18,216 INFO L226 Difference]: Without dead ends: 1607 [2022-11-20 12:13:18,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=444, Invalid=7209, Unknown=11, NotChecked=346, Total=8010 [2022-11-20 12:13:18,221 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 386 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 9265 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 7251 SdHoareTripleChecker+Invalid, 11505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 9265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1991 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:18,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 7251 Invalid, 11505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 9265 Invalid, 0 Unknown, 1991 Unchecked, 10.6s Time] [2022-11-20 12:13:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2022-11-20 12:13:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1325. [2022-11-20 12:13:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1004 states have (on average 1.1414342629482073) internal successors, (1146), 1006 states have internal predecessors, (1146), 220 states have call successors, (220), 54 states have call predecessors, (220), 99 states have return successors, (636), 264 states have call predecessors, (636), 218 states have call successors, (636) [2022-11-20 12:13:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2002 transitions. [2022-11-20 12:13:18,438 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2002 transitions. Word has length 288 [2022-11-20 12:13:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:18,439 INFO L495 AbstractCegarLoop]: Abstraction has 1325 states and 2002 transitions. [2022-11-20 12:13:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.90625) internal successors, (157), 34 states have internal predecessors, (157), 17 states have call successors, (33), 5 states have call predecessors, (33), 11 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-11-20 12:13:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2002 transitions. [2022-11-20 12:13:18,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-20 12:13:18,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:18,447 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:13:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:18,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:13:18,671 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:13:18,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash -862032242, now seen corresponding path program 1 times [2022-11-20 12:13:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:13:18,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941980977] [2022-11-20 12:13:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:18,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:13:18,772 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:13:18,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548789906] [2022-11-20 12:13:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:18,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:13:18,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:13:18,774 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:13:18,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-20 12:13:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:20,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 173 conjunts are in the unsatisfiable core [2022-11-20 12:13:20,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:20,155 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 [2022-11-20 12:13:20,363 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 11 treesize of output 7 [2022-11-20 12:13:20,538 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6450 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6450) |c_#memory_int|)) is different from true [2022-11-20 12:13:21,081 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 [2022-11-20 12:13:27,339 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 [2022-11-20 12:13:27,349 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 12:13:27,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 12:13:56,413 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6451 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6451)) |c_#memory_int|)) is different from true [2022-11-20 12:14:17,366 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6453 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6453) |c_#memory_int|)) is different from true [2022-11-20 12:14:25,978 INFO L321 Elim1Store]: treesize reduction 58, result has 41.4 percent of original size [2022-11-20 12:14:25,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 105 [2022-11-20 12:14:26,056 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-11-20 12:14:26,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 86 treesize of output 111 [2022-11-20 12:14:26,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:14:26,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2022-11-20 12:14:26,314 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-20 12:14:26,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 58 [2022-11-20 12:14:26,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:14:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 267 proven. 100 refuted. 0 times theorem prover too weak. 78 trivial. 18 not checked. [2022-11-20 12:14:26,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:14:29,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941980977] [2022-11-20 12:14:29,584 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:14:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548789906] [2022-11-20 12:14:29,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548789906] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:14:29,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:14:29,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-11-20 12:14:29,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920412290] [2022-11-20 12:14:29,585 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:14:29,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 12:14:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:29,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 12:14:29,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1397, Unknown=37, NotChecked=234, Total=1806 [2022-11-20 12:14:29,587 INFO L87 Difference]: Start difference. First operand 1325 states and 2002 transitions. Second operand has 36 states, 32 states have (on average 5.5) internal successors, (176), 31 states have internal predecessors, (176), 17 states have call successors, (35), 9 states have call predecessors, (35), 15 states have return successors, (33), 14 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-20 12:14:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:14:58,059 INFO L93 Difference]: Finished difference Result 2526 states and 3886 transitions. [2022-11-20 12:14:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 12:14:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 5.5) internal successors, (176), 31 states have internal predecessors, (176), 17 states have call successors, (35), 9 states have call predecessors, (35), 15 states have return successors, (33), 14 states have call predecessors, (33), 17 states have call successors, (33) Word has length 296 [2022-11-20 12:14:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:14:58,071 INFO L225 Difference]: With dead ends: 2526 [2022-11-20 12:14:58,071 INFO L226 Difference]: Without dead ends: 1513 [2022-11-20 12:14:58,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 304 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 90.6s TimeCoverageRelationStatistics Valid=223, Invalid=2188, Unknown=51, NotChecked=294, Total=2756 [2022-11-20 12:14:58,077 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 511 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 13256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8243 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:14:58,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 5938 Invalid, 13256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [617 Valid, 4396 Invalid, 0 Unknown, 8243 Unchecked, 4.7s Time] [2022-11-20 12:14:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2022-11-20 12:14:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1402. [2022-11-20 12:14:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1060 states have (on average 1.1424528301886792) internal successors, (1211), 1062 states have internal predecessors, (1211), 233 states have call successors, (233), 63 states have call predecessors, (233), 107 states have return successors, (718), 276 states have call predecessors, (718), 231 states have call successors, (718) [2022-11-20 12:14:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2162 transitions. [2022-11-20 12:14:58,226 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2162 transitions. Word has length 296 [2022-11-20 12:14:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:14:58,227 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2162 transitions. [2022-11-20 12:14:58,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 5.5) internal successors, (176), 31 states have internal predecessors, (176), 17 states have call successors, (35), 9 states have call predecessors, (35), 15 states have return successors, (33), 14 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-20 12:14:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2162 transitions. [2022-11-20 12:14:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-20 12:14:58,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:14:58,238 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:14:58,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2022-11-20 12:14:58,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-20 12:14:58,453 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:14:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1786130493, now seen corresponding path program 2 times [2022-11-20 12:14:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:58,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681279752] [2022-11-20 12:14:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:58,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:14:58,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927382615] [2022-11-20 12:14:58,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:14:58,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:14:58,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:14:58,539 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:14:58,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-20 12:15:02,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:15:02,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:15:02,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 3455 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-20 12:15:02,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:02,225 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 [2022-11-20 12:15:02,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:03,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:03,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:03,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:04,095 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6663 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6663))) is different from true [2022-11-20 12:15:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 256 proven. 36 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-20 12:15:04,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:15:05,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:05,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681279752] [2022-11-20 12:15:05,070 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:15:05,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927382615] [2022-11-20 12:15:05,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927382615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:15:05,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:15:05,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-11-20 12:15:05,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88713761] [2022-11-20 12:15:05,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:15:05,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:15:05,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:15:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=509, Unknown=9, NotChecked=46, Total=650 [2022-11-20 12:15:05,073 INFO L87 Difference]: Start difference. First operand 1402 states and 2162 transitions. Second operand has 25 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 20 states have internal predecessors, (146), 12 states have call successors, (31), 7 states have call predecessors, (31), 9 states have return successors, (29), 9 states have call predecessors, (29), 12 states have call successors, (29) [2022-11-20 12:15:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:10,233 INFO L93 Difference]: Finished difference Result 2670 states and 4144 transitions. [2022-11-20 12:15:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 12:15:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 20 states have internal predecessors, (146), 12 states have call successors, (31), 7 states have call predecessors, (31), 9 states have return successors, (29), 9 states have call predecessors, (29), 12 states have call successors, (29) Word has length 294 [2022-11-20 12:15:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:10,245 INFO L225 Difference]: With dead ends: 2670 [2022-11-20 12:15:10,245 INFO L226 Difference]: Without dead ends: 1505 [2022-11-20 12:15:10,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 432 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=137, Invalid=840, Unknown=19, NotChecked=60, Total=1056 [2022-11-20 12:15:10,255 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 594 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 7917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4206 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:10,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 3090 Invalid, 7917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 3259 Invalid, 0 Unknown, 4206 Unchecked, 4.4s Time] [2022-11-20 12:15:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-11-20 12:15:10,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1387. [2022-11-20 12:15:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1058 states have (on average 1.1436672967863895) internal successors, (1210), 1060 states have internal predecessors, (1210), 223 states have call successors, (223), 56 states have call predecessors, (223), 104 states have return successors, (675), 270 states have call predecessors, (675), 221 states have call successors, (675) [2022-11-20 12:15:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2108 transitions. [2022-11-20 12:15:10,446 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2108 transitions. Word has length 294 [2022-11-20 12:15:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:10,446 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 2108 transitions. [2022-11-20 12:15:10,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 20 states have internal predecessors, (146), 12 states have call successors, (31), 7 states have call predecessors, (31), 9 states have return successors, (29), 9 states have call predecessors, (29), 12 states have call successors, (29) [2022-11-20 12:15:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2108 transitions. [2022-11-20 12:15:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-20 12:15:10,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:10,462 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:10,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-20 12:15:10,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:15:10,685 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:10,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:10,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1002700440, now seen corresponding path program 2 times [2022-11-20 12:15:10,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:10,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612702160] [2022-11-20 12:15:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:10,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:10,795 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:15:10,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117570677] [2022-11-20 12:15:10,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:15:10,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:15:10,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:10,797 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:15:10,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-20 12:15:12,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:15:12,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:15:12,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3440 conjuncts, 263 conjunts are in the unsatisfiable core [2022-11-20 12:15:12,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:12,837 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 [2022-11-20 12:15:13,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 12:15:13,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 12:15:13,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:13,550 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 12:15:13,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 12:15:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:15,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:17,885 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6919 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6919) |c_#memory_int|)) is different from true [2022-11-20 12:15:22,593 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6920 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6920)) |c_#memory_int|)) is different from true [2022-11-20 12:15:22,863 WARN L859 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (select (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6920 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6920))))) is different from true [2022-11-20 12:15:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:25,386 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-11-20 12:15:25,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 1 [2022-11-20 12:15:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 262 proven. 17 refuted. 0 times theorem prover too weak. 178 trivial. 10 not checked. [2022-11-20 12:15:25,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:15:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:27,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612702160] [2022-11-20 12:15:27,970 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:15:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117570677] [2022-11-20 12:15:27,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117570677] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:15:27,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:15:27,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-11-20 12:15:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227487957] [2022-11-20 12:15:27,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:15:27,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 12:15:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:27,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 12:15:27,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=922, Unknown=35, NotChecked=192, Total=1260 [2022-11-20 12:15:27,973 INFO L87 Difference]: Start difference. First operand 1387 states and 2108 transitions. Second operand has 35 states, 32 states have (on average 4.1875) internal successors, (134), 29 states have internal predecessors, (134), 14 states have call successors, (29), 8 states have call predecessors, (29), 12 states have return successors, (27), 13 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-20 12:15:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:33,188 INFO L93 Difference]: Finished difference Result 2734 states and 4221 transitions. [2022-11-20 12:15:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 12:15:33,189 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 4.1875) internal successors, (134), 29 states have internal predecessors, (134), 14 states have call successors, (29), 8 states have call predecessors, (29), 12 states have return successors, (27), 13 states have call predecessors, (27), 14 states have call successors, (27) Word has length 284 [2022-11-20 12:15:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:33,201 INFO L225 Difference]: With dead ends: 2734 [2022-11-20 12:15:33,201 INFO L226 Difference]: Without dead ends: 1517 [2022-11-20 12:15:33,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=189, Invalid=1745, Unknown=58, NotChecked=264, Total=2256 [2022-11-20 12:15:33,210 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 515 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 11429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7756 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:33,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 3526 Invalid, 11429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 3051 Invalid, 0 Unknown, 7756 Unchecked, 3.8s Time] [2022-11-20 12:15:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-11-20 12:15:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1410. [2022-11-20 12:15:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1073 states have (on average 1.1435228331780056) internal successors, (1227), 1076 states have internal predecessors, (1227), 227 states have call successors, (227), 59 states have call predecessors, (227), 108 states have return successors, (697), 274 states have call predecessors, (697), 225 states have call successors, (697) [2022-11-20 12:15:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2151 transitions. [2022-11-20 12:15:33,415 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2151 transitions. Word has length 284 [2022-11-20 12:15:33,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:33,416 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 2151 transitions. [2022-11-20 12:15:33,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 4.1875) internal successors, (134), 29 states have internal predecessors, (134), 14 states have call successors, (29), 8 states have call predecessors, (29), 12 states have return successors, (27), 13 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-20 12:15:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2151 transitions. [2022-11-20 12:15:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-20 12:15:33,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:33,426 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:33,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-20 12:15:33,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:15:33,639 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1460095763, now seen corresponding path program 1 times [2022-11-20 12:15:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:33,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588383273] [2022-11-20 12:15:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:33,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:33,751 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:15:33,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027316294] [2022-11-20 12:15:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:33,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:15:33,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:33,753 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:15:33,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-20 12:15:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:35,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-20 12:15:35,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:35,506 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 [2022-11-20 12:15:36,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:36,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:15:36,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 12:15:36,515 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7164 Int) (ensure_array_list_has_allocated_data_member_~list.offset Int) (v_ArrVal_7166 Int)) (and (= (store |c_old(#memory_int)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (store (select |c_old(#memory_int)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) (+ ensure_array_list_has_allocated_data_member_~list.offset 32) v_ArrVal_7164) ensure_array_list_has_allocated_data_member_~list.offset v_ArrVal_7166)) |c_#memory_int|) (<= |c_ensure_array_list_has_allocated_data_member_#in~list.offset| ensure_array_list_has_allocated_data_member_~list.offset))) (exists ((|bounded_malloc_#res.base| Int) (v_ArrVal_7163 Int)) (and (= |c_#valid| (store |c_old(#valid)| |bounded_malloc_#res.base| v_ArrVal_7163)) (= (select |c_old(#valid)| |bounded_malloc_#res.base|) 0)))) is different from true [2022-11-20 12:15:36,560 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 12:15:36,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 12:15:36,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:36,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:36,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-20 12:15:36,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:36,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 12:15:36,886 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7170 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7170))) is different from true [2022-11-20 12:15:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 253 proven. 29 refuted. 3 times theorem prover too weak. 170 trivial. 2 not checked. [2022-11-20 12:15:37,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:15:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:38,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588383273] [2022-11-20 12:15:38,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:15:38,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027316294] [2022-11-20 12:15:38,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027316294] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:15:38,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:15:38,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-11-20 12:15:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133676258] [2022-11-20 12:15:38,432 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:15:38,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 12:15:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:38,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 12:15:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=710, Unknown=13, NotChecked=110, Total=930 [2022-11-20 12:15:38,434 INFO L87 Difference]: Start difference. First operand 1410 states and 2151 transitions. Second operand has 30 states, 28 states have (on average 5.071428571428571) internal successors, (142), 25 states have internal predecessors, (142), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 14 states have call successors, (28) [2022-11-20 12:15:43,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:43,292 INFO L93 Difference]: Finished difference Result 2657 states and 4097 transitions. [2022-11-20 12:15:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 12:15:43,292 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.071428571428571) internal successors, (142), 25 states have internal predecessors, (142), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 14 states have call successors, (28) Word has length 288 [2022-11-20 12:15:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:43,306 INFO L225 Difference]: With dead ends: 2657 [2022-11-20 12:15:43,307 INFO L226 Difference]: Without dead ends: 1530 [2022-11-20 12:15:43,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 417 SyntacticMatches, 9 SemanticMatches, 38 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=149, Invalid=1235, Unknown=30, NotChecked=146, Total=1560 [2022-11-20 12:15:43,313 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 252 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 4199 SdHoareTripleChecker+Invalid, 8913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5692 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:43,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 4199 Invalid, 8913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3019 Invalid, 0 Unknown, 5692 Unchecked, 4.0s Time] [2022-11-20 12:15:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-11-20 12:15:43,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1416. [2022-11-20 12:15:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1077 states have (on average 1.1429897864438254) internal successors, (1231), 1081 states have internal predecessors, (1231), 228 states have call successors, (228), 59 states have call predecessors, (228), 109 states have return successors, (715), 275 states have call predecessors, (715), 226 states have call successors, (715) [2022-11-20 12:15:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2174 transitions. [2022-11-20 12:15:43,573 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2174 transitions. Word has length 288 [2022-11-20 12:15:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:43,574 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 2174 transitions. [2022-11-20 12:15:43,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.071428571428571) internal successors, (142), 25 states have internal predecessors, (142), 14 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 14 states have call successors, (28) [2022-11-20 12:15:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2174 transitions. [2022-11-20 12:15:43,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-20 12:15:43,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:43,585 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:43,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-20 12:15:43,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-20 12:15:43,799 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1588509335, now seen corresponding path program 1 times [2022-11-20 12:15:43,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:43,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391506726] [2022-11-20 12:15:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:43,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:43,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:15:43,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427635001] [2022-11-20 12:15:43,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:43,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:15:43,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:43,888 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:15:43,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-20 12:15:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:45,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 3480 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-20 12:15:45,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:45,144 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 [2022-11-20 12:15:45,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:15:45,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-20 12:15:45,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-20 12:15:45,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2022-11-20 12:15:45,692 INFO L321 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2022-11-20 12:15:45,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 20 [2022-11-20 12:15:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:47,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2022-11-20 12:15:49,955 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7410 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7410) |c_#memory_$Pointer$.base|)) is different from true [2022-11-20 12:15:50,245 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7411 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7411)))) is different from true [2022-11-20 12:15:50,258 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7411 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7411)))) is different from true [2022-11-20 12:15:50,455 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-20 12:15:50,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-20 12:15:50,463 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 5 treesize of output 3 [2022-11-20 12:15:50,484 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 8 treesize of output 7 [2022-11-20 12:15:50,498 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 12 treesize of output 11 [2022-11-20 12:15:50,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-20 12:15:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:50,669 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-11-20 12:15:50,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 108 [2022-11-20 12:15:50,710 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-20 12:15:50,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-11-20 12:15:50,730 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 8 treesize of output 7 [2022-11-20 12:15:50,756 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 8 treesize of output 7 [2022-11-20 12:15:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:15:50,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2022-11-20 12:15:51,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 69 [2022-11-20 12:15:51,053 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 9 treesize of output 7 [2022-11-20 12:16:19,595 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 20 treesize of output 8 [2022-11-20 12:16:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 261 proven. 23 refuted. 0 times theorem prover too weak. 166 trivial. 10 not checked. [2022-11-20 12:16:19,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:16:20,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:20,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391506726] [2022-11-20 12:16:20,395 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:16:20,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427635001] [2022-11-20 12:16:20,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427635001] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:16:20,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:16:20,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-11-20 12:16:20,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504385595] [2022-11-20 12:16:20,396 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:16:20,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 12:16:20,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 12:16:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=763, Unknown=17, NotChecked=174, Total=1056 [2022-11-20 12:16:20,399 INFO L87 Difference]: Start difference. First operand 1416 states and 2174 transitions. Second operand has 30 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 15 states have call successors, (32), 8 states have call predecessors, (32), 13 states have return successors, (30), 14 states have call predecessors, (30), 15 states have call successors, (30) [2022-11-20 12:16:27,207 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7411 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7411)))) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (exists ((v_ArrVal_7410 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_7410))) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0)))) is different from true [2022-11-20 12:16:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:30,451 INFO L93 Difference]: Finished difference Result 2626 states and 4059 transitions. [2022-11-20 12:16:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 12:16:30,452 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 15 states have call successors, (32), 8 states have call predecessors, (32), 13 states have return successors, (30), 14 states have call predecessors, (30), 15 states have call successors, (30) Word has length 298 [2022-11-20 12:16:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:30,462 INFO L225 Difference]: With dead ends: 2626 [2022-11-20 12:16:30,462 INFO L226 Difference]: Without dead ends: 1529 [2022-11-20 12:16:30,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 421 SyntacticMatches, 12 SemanticMatches, 41 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 39.6s TimeCoverageRelationStatistics Valid=155, Invalid=1311, Unknown=32, NotChecked=308, Total=1806 [2022-11-20 12:16:30,466 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 368 mSDsluCounter, 3301 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 8370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4848 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:30,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 3738 Invalid, 8370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3115 Invalid, 0 Unknown, 4848 Unchecked, 3.4s Time] [2022-11-20 12:16:30,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-11-20 12:16:30,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1422. [2022-11-20 12:16:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1081 states have (on average 1.1424606845513414) internal successors, (1235), 1085 states have internal predecessors, (1235), 229 states have call successors, (229), 60 states have call predecessors, (229), 110 states have return successors, (729), 276 states have call predecessors, (729), 227 states have call successors, (729) [2022-11-20 12:16:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2193 transitions. [2022-11-20 12:16:30,640 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2193 transitions. Word has length 298 [2022-11-20 12:16:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:30,641 INFO L495 AbstractCegarLoop]: Abstraction has 1422 states and 2193 transitions. [2022-11-20 12:16:30,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 15 states have call successors, (32), 8 states have call predecessors, (32), 13 states have return successors, (30), 14 states have call predecessors, (30), 15 states have call successors, (30) [2022-11-20 12:16:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2193 transitions. [2022-11-20 12:16:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-20 12:16:30,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:30,650 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:30,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-11-20 12:16:30,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-20 12:16:30,865 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:30,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:30,866 INFO L85 PathProgramCache]: Analyzing trace with hash -666661503, now seen corresponding path program 1 times [2022-11-20 12:16:30,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:30,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215499362] [2022-11-20 12:16:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:30,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:16:30,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812214536] [2022-11-20 12:16:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:30,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:16:30,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:16:30,959 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:16:30,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-11-20 12:16:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:32,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 3444 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-20 12:16:32,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:32,679 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 [2022-11-20 12:16:32,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 12:16:32,944 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 12:16:32,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 12:16:32,995 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 11 treesize of output 7 [2022-11-20 12:16:33,199 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7658 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7658) |c_#memory_int|)) is different from true [2022-11-20 12:16:33,831 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7660 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7660)) |c_#memory_int|)) is different from true [2022-11-20 12:16:36,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:16:36,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:16:36,510 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-11-20 12:16:36,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 120 [2022-11-20 12:16:36,533 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 12:16:36,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 12:16:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:16:36,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2022-11-20 12:16:36,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 26 [2022-11-20 12:16:36,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-20 12:16:37,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2022-11-20 12:16:37,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-20 12:16:37,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2022-11-20 12:16:37,106 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 12:16:38,043 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7662 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7662)) |c_#memory_int|)) is different from true [2022-11-20 12:16:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 279 proven. 107 refuted. 9 times theorem prover too weak. 63 trivial. 9 not checked. [2022-11-20 12:16:38,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:16:39,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215499362] [2022-11-20 12:16:39,388 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:16:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812214536] [2022-11-20 12:16:39,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812214536] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:16:39,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:16:39,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-11-20 12:16:39,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117869294] [2022-11-20 12:16:39,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:16:39,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 12:16:39,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 12:16:39,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1000, Unknown=29, NotChecked=198, Total=1332 [2022-11-20 12:16:39,390 INFO L87 Difference]: Start difference. First operand 1422 states and 2193 transitions. Second operand has 36 states, 32 states have (on average 5.65625) internal successors, (181), 31 states have internal predecessors, (181), 17 states have call successors, (35), 8 states have call predecessors, (35), 14 states have return successors, (33), 15 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-20 12:16:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:42,997 INFO L93 Difference]: Finished difference Result 2717 states and 4258 transitions. [2022-11-20 12:16:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 12:16:42,997 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 5.65625) internal successors, (181), 31 states have internal predecessors, (181), 17 states have call successors, (35), 8 states have call predecessors, (35), 14 states have return successors, (33), 15 states have call predecessors, (33), 17 states have call successors, (33) Word has length 290 [2022-11-20 12:16:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:43,009 INFO L225 Difference]: With dead ends: 2717 [2022-11-20 12:16:43,009 INFO L226 Difference]: Without dead ends: 1636 [2022-11-20 12:16:43,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 334 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=178, Invalid=1690, Unknown=36, NotChecked=258, Total=2162 [2022-11-20 12:16:43,014 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 438 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 10043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7419 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:43,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 3886 Invalid, 10043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 2101 Invalid, 0 Unknown, 7419 Unchecked, 2.7s Time] [2022-11-20 12:16:43,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-11-20 12:16:43,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1478. [2022-11-20 12:16:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1120 states have (on average 1.1419642857142858) internal successors, (1279), 1127 states have internal predecessors, (1279), 240 states have call successors, (240), 65 states have call predecessors, (240), 116 states have return successors, (790), 285 states have call predecessors, (790), 238 states have call successors, (790) [2022-11-20 12:16:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2309 transitions. [2022-11-20 12:16:43,183 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2309 transitions. Word has length 290 [2022-11-20 12:16:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:43,184 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 2309 transitions. [2022-11-20 12:16:43,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 5.65625) internal successors, (181), 31 states have internal predecessors, (181), 17 states have call successors, (35), 8 states have call predecessors, (35), 14 states have return successors, (33), 15 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-20 12:16:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2309 transitions. [2022-11-20 12:16:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-20 12:16:43,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:43,198 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:43,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-11-20 12:16:43,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-20 12:16:43,417 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:43,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1124226340, now seen corresponding path program 1 times [2022-11-20 12:16:43,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:43,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795359339] [2022-11-20 12:16:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:43,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:43,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:16:43,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470036958] [2022-11-20 12:16:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:43,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:16:43,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:16:43,523 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:16:43,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-20 12:16:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-20 12:16:45,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:45,563 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 [2022-11-20 12:16:45,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:16:46,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2022-11-20 12:16:50,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2022-11-20 12:16:50,258 INFO L321 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-11-20 12:16:50,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2022-11-20 12:16:52,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:16:52,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-20 12:16:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:16:52,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-20 12:16:53,058 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7921 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7921))) is different from true [2022-11-20 12:17:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 245 proven. 25 refuted. 3 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:17:03,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:06,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:06,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795359339] [2022-11-20 12:17:06,219 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:17:06,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470036958] [2022-11-20 12:17:06,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470036958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:06,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:17:06,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-11-20 12:17:06,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617596389] [2022-11-20 12:17:06,219 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:06,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 12:17:06,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:06,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 12:17:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=644, Unknown=24, NotChecked=52, Total=812 [2022-11-20 12:17:06,221 INFO L87 Difference]: Start difference. First operand 1478 states and 2309 transitions. Second operand has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 24 states have internal predecessors, (131), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-20 12:17:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:15,576 INFO L93 Difference]: Finished difference Result 2739 states and 4192 transitions. [2022-11-20 12:17:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 12:17:15,577 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 24 states have internal predecessors, (131), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) Word has length 278 [2022-11-20 12:17:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:15,585 INFO L225 Difference]: With dead ends: 2739 [2022-11-20 12:17:15,586 INFO L226 Difference]: Without dead ends: 1592 [2022-11-20 12:17:15,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 402 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=123, Invalid=910, Unknown=27, NotChecked=62, Total=1122 [2022-11-20 12:17:15,591 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 265 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 6798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4249 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:15,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 3973 Invalid, 6798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2346 Invalid, 0 Unknown, 4249 Unchecked, 2.8s Time] [2022-11-20 12:17:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-11-20 12:17:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1464. [2022-11-20 12:17:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1111 states have (on average 1.1422142214221422) internal successors, (1269), 1118 states have internal predecessors, (1269), 236 states have call successors, (236), 63 states have call predecessors, (236), 115 states have return successors, (770), 282 states have call predecessors, (770), 234 states have call successors, (770) [2022-11-20 12:17:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2275 transitions. [2022-11-20 12:17:15,734 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2275 transitions. Word has length 278 [2022-11-20 12:17:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:15,735 INFO L495 AbstractCegarLoop]: Abstraction has 1464 states and 2275 transitions. [2022-11-20 12:17:15,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 24 states have internal predecessors, (131), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-20 12:17:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2275 transitions. [2022-11-20 12:17:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-20 12:17:15,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:15,748 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:15,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-20 12:17:15,963 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 824510142, now seen corresponding path program 2 times [2022-11-20 12:17:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:15,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342539991] [2022-11-20 12:17:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:15,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:16,043 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:17:16,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209014585] [2022-11-20 12:17:16,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:17:16,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:16,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:16,045 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:16,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-20 12:17:19,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:17:19,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:19,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 3435 conjuncts, 167 conjunts are in the unsatisfiable core [2022-11-20 12:17:19,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:19,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 12:17:20,571 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8170 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8172 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8170)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8172)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:17:20,602 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8170 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8172 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8170)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8172)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-20 12:17:20,723 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:17:20,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-20 12:17:20,762 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-20 12:17:20,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-20 12:17:21,896 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8174 Int) (v_ArrVal_8176 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8176))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8174)) |c_#memory_$Pointer$.base|))) is different from true [2022-11-20 12:17:26,235 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 41 treesize of output 33 [2022-11-20 12:17:26,239 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 24 treesize of output 16 [2022-11-20 12:17:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 283 proven. 68 refuted. 15 times theorem prover too weak. 72 trivial. 19 not checked. [2022-11-20 12:17:26,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:28,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:28,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342539991] [2022-11-20 12:17:28,708 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:17:28,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209014585] [2022-11-20 12:17:28,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209014585] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:28,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:17:28,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-11-20 12:17:28,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229595825] [2022-11-20 12:17:28,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:28,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-20 12:17:28,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:28,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-20 12:17:28,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1552, Unknown=73, NotChecked=246, Total=1980 [2022-11-20 12:17:28,711 INFO L87 Difference]: Start difference. First operand 1464 states and 2275 transitions. Second operand has 39 states, 33 states have (on average 5.181818181818182) internal successors, (171), 35 states have internal predecessors, (171), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-11-20 12:17:31,060 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_8174 Int) (v_ArrVal_8176 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8176))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8174)) |c_#memory_$Pointer$.base|))) (exists ((v_ArrVal_8170 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8172 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8170)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8172)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-11-20 12:17:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:41,353 INFO L93 Difference]: Finished difference Result 2920 states and 4517 transitions. [2022-11-20 12:17:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-20 12:17:41,354 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 5.181818181818182) internal successors, (171), 35 states have internal predecessors, (171), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) Word has length 282 [2022-11-20 12:17:41,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:41,363 INFO L225 Difference]: With dead ends: 2920 [2022-11-20 12:17:41,364 INFO L226 Difference]: Without dead ends: 1762 [2022-11-20 12:17:41,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 319 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=259, Invalid=4096, Unknown=83, NotChecked=532, Total=4970 [2022-11-20 12:17:41,371 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 308 mSDsluCounter, 7748 mSDsCounter, 0 mSdLazyCounter, 7118 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 8148 SdHoareTripleChecker+Invalid, 13432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 7118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6110 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:41,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 8148 Invalid, 13432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 7118 Invalid, 0 Unknown, 6110 Unchecked, 8.7s Time] [2022-11-20 12:17:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-11-20 12:17:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1490. [2022-11-20 12:17:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1129 states have (on average 1.141718334809566) internal successors, (1289), 1137 states have internal predecessors, (1289), 241 states have call successors, (241), 66 states have call predecessors, (241), 118 states have return successors, (810), 286 states have call predecessors, (810), 239 states have call successors, (810) [2022-11-20 12:17:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2340 transitions. [2022-11-20 12:17:41,689 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2340 transitions. Word has length 282 [2022-11-20 12:17:41,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:41,690 INFO L495 AbstractCegarLoop]: Abstraction has 1490 states and 2340 transitions. [2022-11-20 12:17:41,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 5.181818181818182) internal successors, (171), 35 states have internal predecessors, (171), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-11-20 12:17:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2340 transitions. [2022-11-20 12:17:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-20 12:17:41,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:41,703 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:41,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:41,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-20 12:17:41,911 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:41,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1913612990, now seen corresponding path program 1 times [2022-11-20 12:17:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013619842] [2022-11-20 12:17:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:41,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:41,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:17:41,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599151758] [2022-11-20 12:17:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:41,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:41,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:41,992 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:41,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aa1c0a-fbb8-43e7-b98b-0bad371df0f4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-11-20 12:17:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:43,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 3511 conjuncts, 177 conjunts are in the unsatisfiable core [2022-11-20 12:17:43,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:49,985 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8406 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8404 Int) (v_ArrVal_8407 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8406)) |c_#memory_$Pointer$.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8407)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8404)) |c_#memory_$Pointer$.base|))) is different from true [2022-11-20 12:17:53,228 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8409 Int) (v_ArrVal_8410 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8410)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8409))))) is different from true [2022-11-20 12:17:57,213 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-20 12:17:57,214 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 1 case distinctions, treesize of input 27 treesize of output 19 [2022-11-20 12:17:57,246 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-20 12:17:57,246 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 1 case distinctions, treesize of input 27 treesize of output 19 [2022-11-20 12:17:57,256 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 30 treesize of output 24 [2022-11-20 12:17:57,264 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 24 treesize of output 20 [2022-11-20 12:17:59,286 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_85| Int) (|v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_77| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_85|) (+ |v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_77| 80)) 0))) (exists ((|v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_85| Int) (|v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_77| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_aws_priority_queue_is_valid_#in~queue#1.base_BEFORE_CALL_85|) (+ |v_aws_priority_queue_is_valid_#in~queue#1.offset_BEFORE_CALL_77| 80)) 0)))) is different from true [2022-11-20 12:18:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 311 proven. 74 refuted. 1 times theorem prover too weak. 73 trivial. 14 not checked. [2022-11-20 12:18:00,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:01,497 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_s_sift_up_~queue.offset 16)) (.cse2 (+ c_s_sift_up_~queue.offset 80))) (and (forall ((v_ArrVal_8456 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| Int)) (or (not (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| v_ArrVal_8456) c_s_sift_up_~queue.base) .cse0) 18446744073709551616) 0)) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784| Int) (v_ArrVal_8458 Int) (v_ArrVal_8459 Int)) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783|) 0 v_ArrVal_8458)))) (store .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784| (store (select .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784|) 0 v_ArrVal_8459))) c_s_sift_up_~queue.base) .cse2) 0)))) (forall ((v_ArrVal_8456 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| Int)) (or (not (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| v_ArrVal_8456) c_s_sift_up_~queue.base) .cse0) 18446744073709551616) 0)) (forall ((v_ArrVal_8460 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784| Int) (v_ArrVal_8457 Int)) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_783|) 0 v_ArrVal_8457)))) (store .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784| (store (select .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_784|) 0 v_ArrVal_8460))) c_s_sift_up_~queue.base) .cse2) 0)))))) is different from false [2022-11-20 12:18:01,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:18:01,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013619842] [2022-11-20 12:18:01,502 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:18:01,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599151758] [2022-11-20 12:18:01,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599151758] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:01,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:18:01,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2022-11-20 12:18:01,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034406679] [2022-11-20 12:18:01,502 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:01,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-20 12:18:01,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:18:01,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-20 12:18:01,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1151, Unknown=68, NotChecked=292, Total=1640 [2022-11-20 12:18:01,504 INFO L87 Difference]: Start difference. First operand 1490 states and 2340 transitions. Second operand has 40 states, 37 states have (on average 5.081081081081081) internal successors, (188), 35 states have internal predecessors, (188), 18 states have call successors, (40), 8 states have call predecessors, (40), 14 states have return successors, (38), 15 states have call predecessors, (38), 18 states have call successors, (38) [2022-11-20 12:18:02,166 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8409 Int) (v_ArrVal_8410 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8410)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8409))))) (exists ((v_ArrVal_8406 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8404 Int) (v_ArrVal_8407 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8406)) |c_#memory_$Pointer$.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8407)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8404)) |c_#memory_$Pointer$.base|)))) is different from true