./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:35:23,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:35:23,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:35:23,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:35:23,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:35:23,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:35:23,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:35:23,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:35:23,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:35:23,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:35:23,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:35:23,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:35:23,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:35:23,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:35:23,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:35:23,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:35:23,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:35:23,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:35:23,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:35:23,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:35:23,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:35:23,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:35:23,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:35:23,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:35:23,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:35:23,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:35:23,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:35:23,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:35:23,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:35:23,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:35:23,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:35:23,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:35:23,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:35:23,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:35:23,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:35:23,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:35:23,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:35:23,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:35:23,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:35:23,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:35:23,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:35:23,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:35:23,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:35:23,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:35:23,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:35:23,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:35:23,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:35:23,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:35:23,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:35:23,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:35:23,880 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:35:23,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:35:23,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:35:23,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:35:23,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:35:23,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:35:23,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:35:23,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:35:23,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:35:23,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:35:23,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:35:23,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:35:23,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:35:23,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:35:23,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:35:23,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:35:23,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:35:23,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:35:23,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:35:23,887 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:35:23,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:35:23,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:35:23,888 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_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 [2022-11-16 11:35:24,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:35:24,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:35:24,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:35:24,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:35:24,217 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:35:24,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2022-11-16 11:35:24,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/data/7ad6b2029/1eef382b5e5648bdb88e1d387966b542/FLAG665cb05a3 [2022-11-16 11:35:25,201 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:35:25,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2022-11-16 11:35:25,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/data/7ad6b2029/1eef382b5e5648bdb88e1d387966b542/FLAG665cb05a3 [2022-11-16 11:35:25,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/data/7ad6b2029/1eef382b5e5648bdb88e1d387966b542 [2022-11-16 11:35:25,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:35:25,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:35:25,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:25,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:35:25,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:35:25,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:25" (1/1) ... [2022-11-16 11:35:25,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27907441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:25, skipping insertion in model container [2022-11-16 11:35:25,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:25" (1/1) ... [2022-11-16 11:35:25,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:35:25,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:35:26,157 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2022-11-16 11:35:26,166 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2022-11-16 11:35:27,390 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,391 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,391 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,392 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,393 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,405 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,406 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,407 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,408 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,410 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,411 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,412 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,413 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:27,910 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 11:35:27,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 11:35:27,915 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 11:35:27,916 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 11:35:27,918 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 11:35:27,919 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 11:35:27,920 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 11:35:27,920 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 11:35:27,921 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 11:35:27,923 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 11:35:28,129 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 11:35:28,491 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,491 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,511 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,512 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,518 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,518 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,532 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,533 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,534 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,535 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,535 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,536 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,536 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:28,598 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:35:28,611 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2022-11-16 11:35:28,612 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2022-11-16 11:35:28,642 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,643 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,643 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,644 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,644 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,651 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,651 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,652 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,653 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,654 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,654 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,655 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,655 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,684 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 11:35:28,685 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 11:35:28,686 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 11:35:28,687 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 11:35:28,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 11:35:28,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 11:35:28,689 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 11:35:28,689 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 11:35:28,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 11:35:28,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 11:35:28,710 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 11:35:28,834 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,878 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,890 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,891 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,894 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,894 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,915 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,916 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,917 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,918 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,918 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,918 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,920 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 11:35:28,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:29,233 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:35:29,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29 WrapperNode [2022-11-16 11:35:29,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:29,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:29,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:35:29,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:35:29,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,437 INFO L138 Inliner]: procedures = 774, calls = 2446, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 624 [2022-11-16 11:35:29,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:29,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:35:29,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:35:29,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:35:29,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:35:29,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:35:29,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:35:29,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:35:29,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (1/1) ... [2022-11-16 11:35:29,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:35:29,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:29,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:29,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:35:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 11:35:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:35:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 11:35:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 11:35:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 11:35:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 11:35:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-16 11:35:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-16 11:35:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:35:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:35:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:35:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:35:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:35:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 11:35:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 11:35:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 11:35:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 11:35:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:35:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-16 11:35:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 11:35:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:35:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-16 11:35:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-16 11:35:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:35:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2022-11-16 11:35:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2022-11-16 11:35:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-16 11:35:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-16 11:35:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2022-11-16 11:35:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2022-11-16 11:35:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:35:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:35:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2022-11-16 11:35:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2022-11-16 11:35:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-16 11:35:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-16 11:35:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:35:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 11:35:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 11:35:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-16 11:35:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-16 11:35:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:35:30,051 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:35:30,054 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:35:30,234 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !true; [2022-11-16 11:35:31,241 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:35:31,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:35:31,249 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 11:35:31,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:31 BoogieIcfgContainer [2022-11-16 11:35:31,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:35:31,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:35:31,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:35:31,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:35:31,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:35:25" (1/3) ... [2022-11-16 11:35:31,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9fbfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:31, skipping insertion in model container [2022-11-16 11:35:31,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:29" (2/3) ... [2022-11-16 11:35:31,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9fbfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:31, skipping insertion in model container [2022-11-16 11:35:31,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:31" (3/3) ... [2022-11-16 11:35:31,260 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness-1.i [2022-11-16 11:35:31,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:35:31,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:35:31,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:35:31,339 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;@678041f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:35:31,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:35:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 114 states have (on average 1.2456140350877194) internal successors, (142), 113 states have internal predecessors, (142), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-16 11:35:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-16 11:35:31,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:31,360 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:31,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:31,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1612502020, now seen corresponding path program 1 times [2022-11-16 11:35:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:31,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063658694] [2022-11-16 11:35:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:32,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:32,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063658694] [2022-11-16 11:35:32,047 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 11:35:32,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140261219] [2022-11-16 11:35:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:32,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:32,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:32,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:35:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:32,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:35:32,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-11-16 11:35:32,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:35:32,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140261219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:32,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:32,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:35:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927428572] [2022-11-16 11:35:32,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:32,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:35:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:35:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:35:32,954 INFO L87 Difference]: Start difference. First operand has 171 states, 114 states have (on average 1.2456140350877194) internal successors, (142), 113 states have internal predecessors, (142), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 11:35:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:32,998 INFO L93 Difference]: Finished difference Result 333 states and 453 transitions. [2022-11-16 11:35:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:35:33,000 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2022-11-16 11:35:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:33,010 INFO L225 Difference]: With dead ends: 333 [2022-11-16 11:35:33,010 INFO L226 Difference]: Without dead ends: 164 [2022-11-16 11:35:33,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:35:33,018 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:33,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:35:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-16 11:35:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-16 11:35:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 107 states have internal predecessors, (130), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-16 11:35:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 209 transitions. [2022-11-16 11:35:33,071 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 209 transitions. Word has length 148 [2022-11-16 11:35:33,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:33,072 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 209 transitions. [2022-11-16 11:35:33,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 11:35:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 209 transitions. [2022-11-16 11:35:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-16 11:35:33,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:33,076 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:33,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:33,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 11:35:33,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:33,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:33,290 INFO L85 PathProgramCache]: Analyzing trace with hash 818348810, now seen corresponding path program 1 times [2022-11-16 11:35:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:33,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050637835] [2022-11-16 11:35:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:33,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:35:33,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198461271] [2022-11-16 11:35:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:33,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:33,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:33,438 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:33,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:35:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:34,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:35:34,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-16 11:35:34,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:35:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:35:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:34,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050637835] [2022-11-16 11:35:34,754 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:35:34,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198461271] [2022-11-16 11:35:34,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198461271] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:35:34,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:35:34,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2022-11-16 11:35:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743621572] [2022-11-16 11:35:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:34,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:35:34,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:34,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:35:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:35:34,793 INFO L87 Difference]: Start difference. First operand 164 states and 209 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-16 11:35:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:35,263 INFO L93 Difference]: Finished difference Result 230 states and 298 transitions. [2022-11-16 11:35:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:35:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 154 [2022-11-16 11:35:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:35,273 INFO L225 Difference]: With dead ends: 230 [2022-11-16 11:35:35,274 INFO L226 Difference]: Without dead ends: 166 [2022-11-16 11:35:35,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:35:35,276 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 213 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:35,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 961 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:35:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-16 11:35:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-16 11:35:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 109 states have internal predecessors, (131), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2022-11-16 11:35:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 211 transitions. [2022-11-16 11:35:35,298 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 211 transitions. Word has length 154 [2022-11-16 11:35:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:35,299 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 211 transitions. [2022-11-16 11:35:35,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-16 11:35:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 211 transitions. [2022-11-16 11:35:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-16 11:35:35,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:35,302 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:35,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:35,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:35,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -226987588, now seen corresponding path program 1 times [2022-11-16 11:35:35,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:35,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576365424] [2022-11-16 11:35:35,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:35,630 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:35:35,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889619813] [2022-11-16 11:35:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:35,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:35,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:35,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:35,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:35:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:36,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:35:36,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-16 11:35:36,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:35:36,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:36,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576365424] [2022-11-16 11:35:36,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:35:36,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889619813] [2022-11-16 11:35:36,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889619813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:36,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:36,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:35:36,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287932059] [2022-11-16 11:35:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:36,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:35:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:35:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:35:36,294 INFO L87 Difference]: Start difference. First operand 166 states and 211 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 11:35:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:36,336 INFO L93 Difference]: Finished difference Result 325 states and 414 transitions. [2022-11-16 11:35:36,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:35:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 155 [2022-11-16 11:35:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:36,368 INFO L225 Difference]: With dead ends: 325 [2022-11-16 11:35:36,369 INFO L226 Difference]: Without dead ends: 171 [2022-11-16 11:35:36,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:35:36,372 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 2 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:36,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 819 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:35:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-16 11:35:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-11-16 11:35:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 113 states have internal predecessors, (135), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2022-11-16 11:35:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 216 transitions. [2022-11-16 11:35:36,409 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 216 transitions. Word has length 155 [2022-11-16 11:35:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:36,410 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 216 transitions. [2022-11-16 11:35:36,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 11:35:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 216 transitions. [2022-11-16 11:35:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-16 11:35:36,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:36,413 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:36,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:36,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:36,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:36,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:36,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1170775228, now seen corresponding path program 1 times [2022-11-16 11:35:36,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:36,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679138311] [2022-11-16 11:35:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:36,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:35:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:35:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:35:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:35:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:35:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:35:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:35:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:35:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:38,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 11:35:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 11:35:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:35:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:35:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 11:35:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:35:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 11:35:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:35:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 11:35:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:35:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 11:35:39,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:39,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679138311] [2022-11-16 11:35:39,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679138311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:35:39,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309356088] [2022-11-16 11:35:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:39,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:39,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:39,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:39,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:35:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:39,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-16 11:35:39,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:40,061 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 11 treesize of output 7 [2022-11-16 11:35:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-16 11:35:40,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:35:40,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309356088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:40,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:35:40,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2022-11-16 11:35:40,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099416725] [2022-11-16 11:35:40,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:40,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:35:40,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:35:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:35:40,393 INFO L87 Difference]: Start difference. First operand 171 states and 216 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-16 11:35:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:40,476 INFO L93 Difference]: Finished difference Result 330 states and 416 transitions. [2022-11-16 11:35:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:35:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 167 [2022-11-16 11:35:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:40,479 INFO L225 Difference]: With dead ends: 330 [2022-11-16 11:35:40,479 INFO L226 Difference]: Without dead ends: 180 [2022-11-16 11:35:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:40,481 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 18 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:40,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1166 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 69 Unchecked, 0.0s Time] [2022-11-16 11:35:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-16 11:35:40,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-16 11:35:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 119 states have (on average 1.218487394957983) internal successors, (145), 121 states have internal predecessors, (145), 40 states have call successors, (40), 18 states have call predecessors, (40), 20 states have return successors, (42), 40 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-16 11:35:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 227 transitions. [2022-11-16 11:35:40,500 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 227 transitions. Word has length 167 [2022-11-16 11:35:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:40,500 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 227 transitions. [2022-11-16 11:35:40,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-16 11:35:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 227 transitions. [2022-11-16 11:35:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-16 11:35:40,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:40,504 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:40,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 11:35:40,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:40,713 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:40,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash -695933446, now seen corresponding path program 1 times [2022-11-16 11:35:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:40,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192517915] [2022-11-16 11:35:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:40,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:35:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:35:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:35:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:35:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:35:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:35:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:35:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:35:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 11:35:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 11:35:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:35:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:35:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 11:35:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:35:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 11:35:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:35:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 11:35:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:35:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 11:35:41,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:41,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192517915] [2022-11-16 11:35:41,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192517915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:35:41,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075973493] [2022-11-16 11:35:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:41,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:41,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:41,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:41,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:35:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:35:42,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-16 11:35:42,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:35:42,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075973493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:42,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:35:42,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2022-11-16 11:35:42,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665077519] [2022-11-16 11:35:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:42,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:35:42,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:42,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:35:42,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:35:42,494 INFO L87 Difference]: Start difference. First operand 180 states and 227 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:35:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:42,722 INFO L93 Difference]: Finished difference Result 334 states and 425 transitions. [2022-11-16 11:35:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:35:42,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2022-11-16 11:35:42,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:42,724 INFO L225 Difference]: With dead ends: 334 [2022-11-16 11:35:42,724 INFO L226 Difference]: Without dead ends: 182 [2022-11-16 11:35:42,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:35:42,726 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 215 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:42,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 690 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:35:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-16 11:35:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-16 11:35:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 122 states have internal predecessors, (145), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (45), 41 states have call predecessors, (45), 40 states have call successors, (45) [2022-11-16 11:35:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 231 transitions. [2022-11-16 11:35:42,744 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 231 transitions. Word has length 167 [2022-11-16 11:35:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:42,745 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 231 transitions. [2022-11-16 11:35:42,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:35:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 231 transitions. [2022-11-16 11:35:42,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-16 11:35:42,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:42,748 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:42,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:42,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:42,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1022744148, now seen corresponding path program 1 times [2022-11-16 11:35:42,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:42,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568622731] [2022-11-16 11:35:42,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:42,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:35:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:35:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:35:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:35:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:35:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:35:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:35:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:35:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:35:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 11:35:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:35:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 11:35:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 11:35:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:35:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 11:35:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:35:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:35:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 11:35:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-16 11:35:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-16 11:35:44,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:44,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568622731] [2022-11-16 11:35:44,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568622731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:35:44,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742693157] [2022-11-16 11:35:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:44,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:35:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:44,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:35:44,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:35:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:45,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 2621 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 11:35:45,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:47,215 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-16 11:35:55,283 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:36:03,362 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:36:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-16 11:36:03,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:03,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742693157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:03,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:03,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-11-16 11:36:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313763599] [2022-11-16 11:36:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:03,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:36:03,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:03,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:36:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=202, Unknown=3, NotChecked=28, Total=272 [2022-11-16 11:36:03,395 INFO L87 Difference]: Start difference. First operand 182 states and 231 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:36:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:03,713 INFO L93 Difference]: Finished difference Result 341 states and 443 transitions. [2022-11-16 11:36:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:36:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 173 [2022-11-16 11:36:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:03,716 INFO L225 Difference]: With dead ends: 341 [2022-11-16 11:36:03,716 INFO L226 Difference]: Without dead ends: 185 [2022-11-16 11:36:03,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=54, Invalid=253, Unknown=3, NotChecked=32, Total=342 [2022-11-16 11:36:03,718 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 5 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 315 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1109 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 315 Unchecked, 0.2s Time] [2022-11-16 11:36:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-16 11:36:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2022-11-16 11:36:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 123 states have internal predecessors, (147), 41 states have call successors, (41), 19 states have call predecessors, (41), 20 states have return successors, (45), 41 states have call predecessors, (45), 40 states have call successors, (45) [2022-11-16 11:36:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 233 transitions. [2022-11-16 11:36:03,735 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 233 transitions. Word has length 173 [2022-11-16 11:36:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:03,736 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 233 transitions. [2022-11-16 11:36:03,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:36:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 233 transitions. [2022-11-16 11:36:03,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-16 11:36:03,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:03,741 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:03,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 11:36:03,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:03,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:03,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash -183837512, now seen corresponding path program 1 times [2022-11-16 11:36:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:03,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202427996] [2022-11-16 11:36:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 11:36:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:36:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:36:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:36:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 11:36:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 11:36:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-16 11:36:06,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:06,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202427996] [2022-11-16 11:36:06,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202427996] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:06,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150062137] [2022-11-16 11:36:06,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:06,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:06,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:06,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:06,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:36:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:07,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2651 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-16 11:36:07,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:07,470 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 16 treesize of output 17 [2022-11-16 11:36:08,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:08,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:08,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:08,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:08,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-16 11:36:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 11:36:08,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:08,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150062137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:08,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:08,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2022-11-16 11:36:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387421699] [2022-11-16 11:36:08,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:08,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:36:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:08,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:36:08,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:36:08,391 INFO L87 Difference]: Start difference. First operand 184 states and 233 transitions. Second operand has 15 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-16 11:36:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:09,336 INFO L93 Difference]: Finished difference Result 350 states and 440 transitions. [2022-11-16 11:36:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:36:09,337 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 178 [2022-11-16 11:36:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:09,339 INFO L225 Difference]: With dead ends: 350 [2022-11-16 11:36:09,339 INFO L226 Difference]: Without dead ends: 271 [2022-11-16 11:36:09,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 211 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=126, Invalid=1280, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 11:36:09,341 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 214 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 341 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:09,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1818 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 326 Invalid, 0 Unknown, 341 Unchecked, 0.7s Time] [2022-11-16 11:36:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-16 11:36:09,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 258. [2022-11-16 11:36:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 181 states have (on average 1.2375690607734806) internal successors, (224), 181 states have internal predecessors, (224), 47 states have call successors, (47), 30 states have call predecessors, (47), 29 states have return successors, (51), 46 states have call predecessors, (51), 46 states have call successors, (51) [2022-11-16 11:36:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 322 transitions. [2022-11-16 11:36:09,362 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 322 transitions. Word has length 178 [2022-11-16 11:36:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:09,363 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 322 transitions. [2022-11-16 11:36:09,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-16 11:36:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 322 transitions. [2022-11-16 11:36:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 11:36:09,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:09,366 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:09,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:09,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 11:36:09,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:09,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1017170911, now seen corresponding path program 1 times [2022-11-16 11:36:09,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:09,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546104428] [2022-11-16 11:36:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:09,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 11:36:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:36:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-16 11:36:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:36:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-16 11:36:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-16 11:36:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:12,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546104428] [2022-11-16 11:36:12,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546104428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:12,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603724846] [2022-11-16 11:36:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:12,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:12,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:12,270 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:12,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:36:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 2662 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:36:12,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-16 11:36:13,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:13,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603724846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:13,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:13,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-11-16 11:36:13,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264703695] [2022-11-16 11:36:13,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:36:13,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:13,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:36:13,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:36:13,082 INFO L87 Difference]: Start difference. First operand 258 states and 322 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:36:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:13,222 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2022-11-16 11:36:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:36:13,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 182 [2022-11-16 11:36:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:13,225 INFO L225 Difference]: With dead ends: 438 [2022-11-16 11:36:13,225 INFO L226 Difference]: Without dead ends: 267 [2022-11-16 11:36:13,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:36:13,226 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 2 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:13,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1155 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:36:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-16 11:36:13,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-11-16 11:36:13,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 187 states have (on average 1.2299465240641712) internal successors, (230), 190 states have internal predecessors, (230), 47 states have call successors, (47), 30 states have call predecessors, (47), 32 states have return successors, (55), 46 states have call predecessors, (55), 46 states have call successors, (55) [2022-11-16 11:36:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 332 transitions. [2022-11-16 11:36:13,246 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 332 transitions. Word has length 182 [2022-11-16 11:36:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:13,247 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 332 transitions. [2022-11-16 11:36:13,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:36:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 332 transitions. [2022-11-16 11:36:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-16 11:36:13,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:13,250 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:13,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:13,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:13,465 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:13,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1394290473, now seen corresponding path program 2 times [2022-11-16 11:36:13,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:13,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100108999] [2022-11-16 11:36:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:13,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:36:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:36:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 11:36:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:36:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-16 11:36:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-16 11:36:16,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:16,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100108999] [2022-11-16 11:36:16,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100108999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:16,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:16,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-16 11:36:16,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593589768] [2022-11-16 11:36:16,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:16,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:36:16,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:16,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:36:16,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:36:16,740 INFO L87 Difference]: Start difference. First operand 267 states and 332 transitions. Second operand has 20 states, 17 states have (on average 4.588235294117647) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (27), 7 states have call predecessors, (27), 4 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) [2022-11-16 11:36:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:20,620 INFO L93 Difference]: Finished difference Result 400 states and 511 transitions. [2022-11-16 11:36:20,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:36:20,621 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 4.588235294117647) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (27), 7 states have call predecessors, (27), 4 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) Word has length 193 [2022-11-16 11:36:20,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:20,625 INFO L225 Difference]: With dead ends: 400 [2022-11-16 11:36:20,625 INFO L226 Difference]: Without dead ends: 324 [2022-11-16 11:36:20,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=1258, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 11:36:20,627 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 308 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:20,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1009 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2764 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-16 11:36:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-11-16 11:36:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 297. [2022-11-16 11:36:20,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 206 states have (on average 1.2281553398058251) internal successors, (253), 212 states have internal predecessors, (253), 53 states have call successors, (53), 30 states have call predecessors, (53), 37 states have return successors, (69), 54 states have call predecessors, (69), 52 states have call successors, (69) [2022-11-16 11:36:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 375 transitions. [2022-11-16 11:36:20,658 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 375 transitions. Word has length 193 [2022-11-16 11:36:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:20,658 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 375 transitions. [2022-11-16 11:36:20,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 4.588235294117647) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (27), 7 states have call predecessors, (27), 4 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) [2022-11-16 11:36:20,659 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 375 transitions. [2022-11-16 11:36:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-16 11:36:20,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:20,662 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:20,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:36:20,662 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:20,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1903763563, now seen corresponding path program 1 times [2022-11-16 11:36:20,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:20,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826044682] [2022-11-16 11:36:20,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:36:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:36:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 11:36:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:36:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-16 11:36:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-16 11:36:23,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:23,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826044682] [2022-11-16 11:36:23,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826044682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:23,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903930455] [2022-11-16 11:36:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:23,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:23,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:23,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:23,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 11:36:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:24,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 2711 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:36:24,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-16 11:36:24,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:24,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903930455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:24,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:24,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2022-11-16 11:36:24,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274479786] [2022-11-16 11:36:24,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:24,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:36:24,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:24,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:36:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:36:24,314 INFO L87 Difference]: Start difference. First operand 297 states and 375 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:36:24,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:24,454 INFO L93 Difference]: Finished difference Result 432 states and 548 transitions. [2022-11-16 11:36:24,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:36:24,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 193 [2022-11-16 11:36:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:24,459 INFO L225 Difference]: With dead ends: 432 [2022-11-16 11:36:24,459 INFO L226 Difference]: Without dead ends: 270 [2022-11-16 11:36:24,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:36:24,461 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 2 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:24,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1156 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:36:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-16 11:36:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 268. [2022-11-16 11:36:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.2216216216216216) internal successors, (226), 189 states have internal predecessors, (226), 49 states have call successors, (49), 28 states have call predecessors, (49), 33 states have return successors, (61), 50 states have call predecessors, (61), 48 states have call successors, (61) [2022-11-16 11:36:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 336 transitions. [2022-11-16 11:36:24,504 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 336 transitions. Word has length 193 [2022-11-16 11:36:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:24,507 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 336 transitions. [2022-11-16 11:36:24,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-16 11:36:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 336 transitions. [2022-11-16 11:36:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:36:24,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:24,510 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:24,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:24,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:36:24,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:24,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:24,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1026335268, now seen corresponding path program 1 times [2022-11-16 11:36:24,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:24,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191836216] [2022-11-16 11:36:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:36:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:36:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:36:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-16 11:36:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 11:36:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 11:36:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-16 11:36:25,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:25,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191836216] [2022-11-16 11:36:25,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191836216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:25,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:25,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:36:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280571805] [2022-11-16 11:36:25,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:25,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:36:25,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:25,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:36:25,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:36:25,451 INFO L87 Difference]: Start difference. First operand 268 states and 336 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 11:36:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:26,472 INFO L93 Difference]: Finished difference Result 446 states and 567 transitions. [2022-11-16 11:36:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2022-11-16 11:36:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:26,476 INFO L225 Difference]: With dead ends: 446 [2022-11-16 11:36:26,476 INFO L226 Difference]: Without dead ends: 259 [2022-11-16 11:36:26,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:26,478 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 339 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:26,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 359 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:36:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-16 11:36:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 238. [2022-11-16 11:36:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 165 states have (on average 1.206060606060606) internal successors, (199), 168 states have internal predecessors, (199), 43 states have call successors, (43), 26 states have call predecessors, (43), 29 states have return successors, (48), 43 states have call predecessors, (48), 42 states have call successors, (48) [2022-11-16 11:36:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 290 transitions. [2022-11-16 11:36:26,504 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 290 transitions. Word has length 195 [2022-11-16 11:36:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:26,505 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 290 transitions. [2022-11-16 11:36:26,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 11:36:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 290 transitions. [2022-11-16 11:36:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-16 11:36:26,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:26,508 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:26,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:36:26,509 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:26,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash 450820696, now seen corresponding path program 1 times [2022-11-16 11:36:26,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:26,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699054180] [2022-11-16 11:36:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:36:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:36:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:36:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-16 11:36:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 11:36:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 11:36:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-16 11:36:29,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:29,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699054180] [2022-11-16 11:36:29,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699054180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:29,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502571178] [2022-11-16 11:36:29,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:29,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:29,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:29,552 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:29,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 11:36:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:30,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-16 11:36:30,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:30,463 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 16 treesize of output 17 [2022-11-16 11:36:31,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:31,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:31,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-16 11:36:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-16 11:36:31,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:31,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502571178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:31,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:31,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [19] total 32 [2022-11-16 11:36:31,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032400568] [2022-11-16 11:36:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:31,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:36:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:36:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2022-11-16 11:36:31,358 INFO L87 Difference]: Start difference. First operand 238 states and 290 transitions. Second operand has 15 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 9 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-16 11:36:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:32,099 INFO L93 Difference]: Finished difference Result 334 states and 405 transitions. [2022-11-16 11:36:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:36:32,100 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 9 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 200 [2022-11-16 11:36:32,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:32,101 INFO L225 Difference]: With dead ends: 334 [2022-11-16 11:36:32,102 INFO L226 Difference]: Without dead ends: 254 [2022-11-16 11:36:32,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 240 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2022-11-16 11:36:32,103 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 208 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:32,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1602 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 296 Invalid, 0 Unknown, 196 Unchecked, 0.5s Time] [2022-11-16 11:36:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-16 11:36:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2022-11-16 11:36:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 172 states have (on average 1.191860465116279) internal successors, (205), 175 states have internal predecessors, (205), 45 states have call successors, (45), 28 states have call predecessors, (45), 31 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2022-11-16 11:36:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 299 transitions. [2022-11-16 11:36:32,128 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 299 transitions. Word has length 200 [2022-11-16 11:36:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:32,128 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 299 transitions. [2022-11-16 11:36:32,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 9 states have call successors, (29), 5 states have call predecessors, (29), 3 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-16 11:36:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 299 transitions. [2022-11-16 11:36:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-16 11:36:32,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:32,132 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:32,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:32,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 11:36:32,346 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:32,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:32,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1734404003, now seen corresponding path program 1 times [2022-11-16 11:36:32,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:32,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983540652] [2022-11-16 11:36:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:36:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:36:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:36:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:36:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:36:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:36:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:36:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:36:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:36:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:36:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:36:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:36:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 11:36:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-16 11:36:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:36:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:36:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 11:36:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 11:36:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:36:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-16 11:36:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:38,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983540652] [2022-11-16 11:36:38,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983540652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:38,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448688222] [2022-11-16 11:36:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:38,206 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:38,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 11:36:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:39,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 2786 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 11:36:39,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-16 11:36:39,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:39,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448688222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:39,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:39,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [29] total 33 [2022-11-16 11:36:39,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481710751] [2022-11-16 11:36:39,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:39,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:39,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:39,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:39,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=980, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 11:36:39,177 INFO L87 Difference]: Start difference. First operand 249 states and 299 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-16 11:36:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:39,315 INFO L93 Difference]: Finished difference Result 488 states and 585 transitions. [2022-11-16 11:36:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 209 [2022-11-16 11:36:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:39,317 INFO L225 Difference]: With dead ends: 488 [2022-11-16 11:36:39,318 INFO L226 Difference]: Without dead ends: 251 [2022-11-16 11:36:39,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:36:39,319 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:39,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 947 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:36:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-16 11:36:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-11-16 11:36:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 173 states have (on average 1.1907514450867052) internal successors, (206), 177 states have internal predecessors, (206), 45 states have call successors, (45), 28 states have call predecessors, (45), 32 states have return successors, (50), 45 states have call predecessors, (50), 44 states have call successors, (50) [2022-11-16 11:36:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 301 transitions. [2022-11-16 11:36:39,342 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 301 transitions. Word has length 209 [2022-11-16 11:36:39,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:39,342 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 301 transitions. [2022-11-16 11:36:39,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-16 11:36:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 301 transitions. [2022-11-16 11:36:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-16 11:36:39,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:39,346 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:39,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:39,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:39,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:39,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1271160118, now seen corresponding path program 1 times [2022-11-16 11:36:39,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:39,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588109775] [2022-11-16 11:36:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:39,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:39,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:36:39,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262486722] [2022-11-16 11:36:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:39,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:39,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:39,636 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:39,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 11:36:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:40,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2891 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 11:36:40,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-16 11:36:40,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:40,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:40,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588109775] [2022-11-16 11:36:40,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:36:40,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262486722] [2022-11-16 11:36:40,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262486722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:40,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:40,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:36:40,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037042174] [2022-11-16 11:36:40,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:40,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:40,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:40,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:36:40,449 INFO L87 Difference]: Start difference. First operand 251 states and 301 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-16 11:36:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:40,563 INFO L93 Difference]: Finished difference Result 429 states and 516 transitions. [2022-11-16 11:36:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 215 [2022-11-16 11:36:40,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:40,566 INFO L225 Difference]: With dead ends: 429 [2022-11-16 11:36:40,566 INFO L226 Difference]: Without dead ends: 249 [2022-11-16 11:36:40,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:36:40,568 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:40,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 948 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:36:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-16 11:36:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 244. [2022-11-16 11:36:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 168 states have (on average 1.1845238095238095) internal successors, (199), 171 states have internal predecessors, (199), 45 states have call successors, (45), 28 states have call predecessors, (45), 30 states have return successors, (48), 44 states have call predecessors, (48), 44 states have call successors, (48) [2022-11-16 11:36:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 292 transitions. [2022-11-16 11:36:40,589 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 292 transitions. Word has length 215 [2022-11-16 11:36:40,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:40,589 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 292 transitions. [2022-11-16 11:36:40,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-16 11:36:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 292 transitions. [2022-11-16 11:36:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-16 11:36:40,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:40,591 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:40,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:40,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:40,803 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:40,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1244691977, now seen corresponding path program 1 times [2022-11-16 11:36:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:40,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34265499] [2022-11-16 11:36:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:40,871 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:36:40,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819681793] [2022-11-16 11:36:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:40,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:40,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:40,873 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:40,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 11:36:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:41,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 2996 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-16 11:36:41,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:41,891 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 16 treesize of output 17 [2022-11-16 11:36:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:41,899 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 16 treesize of output 17 [2022-11-16 11:36:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,959 INFO L321 Elim1Store]: treesize reduction 252, result has 4.2 percent of original size [2022-11-16 11:36:42,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 78 [2022-11-16 11:36:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:36:42,974 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:36:42,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 70 [2022-11-16 11:36:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 117 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-16 11:36:44,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:36:54,645 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:04,834 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:14,951 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:25,076 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:25,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:25,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34265499] [2022-11-16 11:37:25,425 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:37:25,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819681793] [2022-11-16 11:37:25,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819681793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:37:25,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:37:25,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-11-16 11:37:25,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880248698] [2022-11-16 11:37:25,426 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 11:37:25,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:37:25,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:37:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:37:25,428 INFO L87 Difference]: Start difference. First operand 244 states and 292 transitions. Second operand has 25 states, 22 states have (on average 4.5) internal successors, (99), 23 states have internal predecessors, (99), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2022-11-16 11:37:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:26,268 INFO L93 Difference]: Finished difference Result 335 states and 405 transitions. [2022-11-16 11:37:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 11:37:26,269 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.5) internal successors, (99), 23 states have internal predecessors, (99), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 221 [2022-11-16 11:37:26,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:26,271 INFO L225 Difference]: With dead ends: 335 [2022-11-16 11:37:26,271 INFO L226 Difference]: Without dead ends: 255 [2022-11-16 11:37:26,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 206 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=171, Invalid=1551, Unknown=0, NotChecked=0, Total=1722 [2022-11-16 11:37:26,273 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 218 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 144 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:26,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1545 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 287 Invalid, 0 Unknown, 144 Unchecked, 0.5s Time] [2022-11-16 11:37:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-16 11:37:26,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 248. [2022-11-16 11:37:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 171 states have (on average 1.1812865497076024) internal successors, (202), 174 states have internal predecessors, (202), 45 states have call successors, (45), 28 states have call predecessors, (45), 31 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2022-11-16 11:37:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 296 transitions. [2022-11-16 11:37:26,297 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 296 transitions. Word has length 221 [2022-11-16 11:37:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:26,298 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 296 transitions. [2022-11-16 11:37:26,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.5) internal successors, (99), 23 states have internal predecessors, (99), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2022-11-16 11:37:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 296 transitions. [2022-11-16 11:37:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-16 11:37:26,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:26,301 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:26,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-16 11:37:26,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 11:37:26,513 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:37:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:26,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1831497991, now seen corresponding path program 1 times [2022-11-16 11:37:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:26,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359265687] [2022-11-16 11:37:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:26,583 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:37:26,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409416666] [2022-11-16 11:37:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:26,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:37:26,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:37:26,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:37:26,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 11:37:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:27,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 11:37:27,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:37:29,514 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$.offset| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0))) (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0)))) is different from true [2022-11-16 11:37:35,579 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:41,621 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:37:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-11-16 11:37:41,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:37:41,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:41,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359265687] [2022-11-16 11:37:41,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:37:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409416666] [2022-11-16 11:37:41,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409416666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:41,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:41,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:37:41,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500164327] [2022-11-16 11:37:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:41,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:37:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:41,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:37:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2022-11-16 11:37:41,678 INFO L87 Difference]: Start difference. First operand 248 states and 296 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 11:37:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:41,843 INFO L93 Difference]: Finished difference Result 348 states and 426 transitions. [2022-11-16 11:37:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:37:41,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 221 [2022-11-16 11:37:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:41,845 INFO L225 Difference]: With dead ends: 348 [2022-11-16 11:37:41,846 INFO L226 Difference]: Without dead ends: 243 [2022-11-16 11:37:41,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2022-11-16 11:37:41,847 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 309 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:41,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 913 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 309 Unchecked, 0.1s Time] [2022-11-16 11:37:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-16 11:37:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2022-11-16 11:37:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 165 states have (on average 1.1757575757575758) internal successors, (194), 167 states have internal predecessors, (194), 45 states have call successors, (45), 28 states have call predecessors, (45), 30 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2022-11-16 11:37:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 287 transitions. [2022-11-16 11:37:41,870 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 287 transitions. Word has length 221 [2022-11-16 11:37:41,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:41,871 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 287 transitions. [2022-11-16 11:37:41,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 11:37:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 287 transitions. [2022-11-16 11:37:41,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-16 11:37:41,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:41,873 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:41,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-16 11:37:42,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 11:37:42,074 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:37:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash -359144008, now seen corresponding path program 1 times [2022-11-16 11:37:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:42,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354598151] [2022-11-16 11:37:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:42,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:42,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:37:42,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918565222] [2022-11-16 11:37:42,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:42,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:37:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:37:42,158 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:37:42,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 11:37:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:43,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-16 11:37:43,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:37:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:43,294 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 16 treesize of output 17 [2022-11-16 11:37:43,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:43,301 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 16 treesize of output 17 [2022-11-16 11:37:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,302 INFO L321 Elim1Store]: treesize reduction 252, result has 4.2 percent of original size [2022-11-16 11:37:44,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 78 [2022-11-16 11:37:44,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:37:44,334 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:37:44,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2022-11-16 11:37:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 117 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-16 11:37:45,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:37:56,145 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:38:04,799 WARN L233 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:38:15,071 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:38:25,195 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:38:25,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:25,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354598151] [2022-11-16 11:38:25,530 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:38:25,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918565222] [2022-11-16 11:38:25,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918565222] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:38:25,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:38:25,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-11-16 11:38:25,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140874526] [2022-11-16 11:38:25,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 11:38:25,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:38:25,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:25,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:38:25,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 11:38:25,534 INFO L87 Difference]: Start difference. First operand 241 states and 287 transitions. Second operand has 26 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 23 states have internal predecessors, (100), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2022-11-16 11:38:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:26,721 INFO L93 Difference]: Finished difference Result 321 states and 388 transitions. [2022-11-16 11:38:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:38:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 23 states have internal predecessors, (100), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 222 [2022-11-16 11:38:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:26,723 INFO L225 Difference]: With dead ends: 321 [2022-11-16 11:38:26,724 INFO L226 Difference]: Without dead ends: 246 [2022-11-16 11:38:26,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 207 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2022-11-16 11:38:26,725 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 194 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 637 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:26,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 3158 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 552 Invalid, 0 Unknown, 637 Unchecked, 0.9s Time] [2022-11-16 11:38:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-16 11:38:26,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 242. [2022-11-16 11:38:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 166 states have (on average 1.1746987951807228) internal successors, (195), 168 states have internal predecessors, (195), 45 states have call successors, (45), 28 states have call predecessors, (45), 30 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2022-11-16 11:38:26,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2022-11-16 11:38:26,750 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 222 [2022-11-16 11:38:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:26,751 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2022-11-16 11:38:26,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 23 states have internal predecessors, (100), 12 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2022-11-16 11:38:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2022-11-16 11:38:26,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 11:38:26,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:26,754 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:26,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 11:38:26,966 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:38:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash 578086683, now seen corresponding path program 1 times [2022-11-16 11:38:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:26,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842902343] [2022-11-16 11:38:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:27,047 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:38:27,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931535336] [2022-11-16 11:38:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:27,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:38:27,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:38:27,049 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:38:27,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 11:38:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:27,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-16 11:38:27,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:28,003 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 24 treesize of output 28 [2022-11-16 11:38:28,279 INFO L321 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2022-11-16 11:38:28,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 39 [2022-11-16 11:38:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-16 11:38:28,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:38:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-16 11:38:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:28,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842902343] [2022-11-16 11:38:28,945 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:38:28,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931535336] [2022-11-16 11:38:28,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931535336] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:38:28,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:38:28,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2022-11-16 11:38:28,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924847164] [2022-11-16 11:38:28,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:28,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:38:28,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:28,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:38:28,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:38:28,948 INFO L87 Difference]: Start difference. First operand 242 states and 288 transitions. Second operand has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:38:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:29,573 INFO L93 Difference]: Finished difference Result 256 states and 303 transitions. [2022-11-16 11:38:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:38:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 223 [2022-11-16 11:38:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:29,576 INFO L225 Difference]: With dead ends: 256 [2022-11-16 11:38:29,576 INFO L226 Difference]: Without dead ends: 254 [2022-11-16 11:38:29,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:38:29,577 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 27 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:29,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1214 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:38:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-16 11:38:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2022-11-16 11:38:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 170 states have (on average 1.1705882352941177) internal successors, (199), 173 states have internal predecessors, (199), 46 states have call successors, (46), 29 states have call predecessors, (46), 32 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2022-11-16 11:38:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 295 transitions. [2022-11-16 11:38:29,604 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 295 transitions. Word has length 223 [2022-11-16 11:38:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:29,605 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 295 transitions. [2022-11-16 11:38:29,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 11:38:29,606 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 295 transitions. [2022-11-16 11:38:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-16 11:38:29,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:29,608 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:29,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:29,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 11:38:29,818 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:38:29,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:29,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1437112506, now seen corresponding path program 1 times [2022-11-16 11:38:29,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:29,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482698214] [2022-11-16 11:38:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:29,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:29,888 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:38:29,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500608016] [2022-11-16 11:38:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:29,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:38:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:38:29,890 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:38:29,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 11:38:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:30,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 3007 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-16 11:38:30,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:31,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:38:31,022 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 16 treesize of output 17 [2022-11-16 11:38:31,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:38:31,029 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 16 treesize of output 17 [2022-11-16 11:38:33,271 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_hash_table_is_valid_#in~map.base_BEFORE_CALL_3| Int) (|v_aws_hash_table_is_valid_#in~map.offset_BEFORE_CALL_3| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_aws_hash_table_is_valid_#in~map.base_BEFORE_CALL_3|) |v_aws_hash_table_is_valid_#in~map.offset_BEFORE_CALL_3|) 0))) (exists ((|v_aws_hash_table_is_valid_#in~map.base_BEFORE_CALL_3| Int) (|v_aws_hash_table_is_valid_#in~map.offset_BEFORE_CALL_3| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_aws_hash_table_is_valid_#in~map.base_BEFORE_CALL_3|) |v_aws_hash_table_is_valid_#in~map.offset_BEFORE_CALL_3|) 0)))) is different from true [2022-11-16 11:39:09,660 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:39:15,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:15,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:16,019 INFO L321 Elim1Store]: treesize reduction 252, result has 4.2 percent of original size [2022-11-16 11:39:16,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2022-11-16 11:39:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:16,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:16,031 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:39:16,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 78 [2022-11-16 11:39:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-16 11:39:17,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:39:33,820 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:39:48,324 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:39:58,606 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:40:10,740 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:40:15,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:15,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482698214] [2022-11-16 11:40:15,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:40:15,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500608016] [2022-11-16 11:40:15,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500608016] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:15,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:40:15,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-11-16 11:40:15,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398935305] [2022-11-16 11:40:15,772 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 11:40:15,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 11:40:15,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:15,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 11:40:15,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1116, Unknown=25, NotChecked=68, Total=1332 [2022-11-16 11:40:15,774 INFO L87 Difference]: Start difference. First operand 249 states and 295 transitions. Second operand has 28 states, 24 states have (on average 4.125) internal successors, (99), 24 states have internal predecessors, (99), 13 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (29), 11 states have call predecessors, (29), 12 states have call successors, (29) [2022-11-16 11:41:29,978 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:42:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:12,391 INFO L93 Difference]: Finished difference Result 391 states and 479 transitions. [2022-11-16 11:42:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:42:12,391 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 4.125) internal successors, (99), 24 states have internal predecessors, (99), 13 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (29), 11 states have call predecessors, (29), 12 states have call successors, (29) Word has length 225 [2022-11-16 11:42:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:12,394 INFO L225 Difference]: With dead ends: 391 [2022-11-16 11:42:12,394 INFO L226 Difference]: Without dead ends: 325 [2022-11-16 11:42:12,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 214 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 217.4s TimeCoverageRelationStatistics Valid=443, Invalid=3905, Unknown=78, NotChecked=130, Total=4556 [2022-11-16 11:42:12,397 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 265 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1403 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:12,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1506 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1817 Invalid, 0 Unknown, 1403 Unchecked, 2.1s Time] [2022-11-16 11:42:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-16 11:42:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 292. [2022-11-16 11:42:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 205 states have (on average 1.2097560975609756) internal successors, (248), 207 states have internal predecessors, (248), 49 states have call successors, (49), 35 states have call predecessors, (49), 37 states have return successors, (55), 49 states have call predecessors, (55), 48 states have call successors, (55) [2022-11-16 11:42:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 352 transitions. [2022-11-16 11:42:12,436 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 352 transitions. Word has length 225 [2022-11-16 11:42:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:12,437 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 352 transitions. [2022-11-16 11:42:12,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 4.125) internal successors, (99), 24 states have internal predecessors, (99), 13 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (29), 11 states have call predecessors, (29), 12 states have call successors, (29) [2022-11-16 11:42:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 352 transitions. [2022-11-16 11:42:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-16 11:42:12,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:12,440 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:12,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:12,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:12,652 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:12,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash -247132154, now seen corresponding path program 1 times [2022-11-16 11:42:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:12,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636419623] [2022-11-16 11:42:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:12,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:12,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304891971] [2022-11-16 11:42:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:12,726 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:12,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-16 11:42:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:13,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 3016 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 11:42:13,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:13,688 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 18 treesize of output 19 [2022-11-16 11:42:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-11-16 11:42:13,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:42:13,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:13,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636419623] [2022-11-16 11:42:13,899 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:13,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304891971] [2022-11-16 11:42:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304891971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:13,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:13,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:42:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095092318] [2022-11-16 11:42:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:42:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:42:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:42:13,902 INFO L87 Difference]: Start difference. First operand 292 states and 352 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-16 11:42:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:14,067 INFO L93 Difference]: Finished difference Result 394 states and 484 transitions. [2022-11-16 11:42:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:42:14,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 226 [2022-11-16 11:42:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:14,070 INFO L225 Difference]: With dead ends: 394 [2022-11-16 11:42:14,070 INFO L226 Difference]: Without dead ends: 293 [2022-11-16 11:42:14,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:42:14,071 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 51 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:14,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 990 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 81 Unchecked, 0.1s Time] [2022-11-16 11:42:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-11-16 11:42:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 291. [2022-11-16 11:42:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 204 states have (on average 1.2058823529411764) internal successors, (246), 206 states have internal predecessors, (246), 49 states have call successors, (49), 35 states have call predecessors, (49), 37 states have return successors, (55), 49 states have call predecessors, (55), 48 states have call successors, (55) [2022-11-16 11:42:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2022-11-16 11:42:14,103 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 226 [2022-11-16 11:42:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:14,104 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2022-11-16 11:42:14,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-16 11:42:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2022-11-16 11:42:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-16 11:42:14,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:14,107 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:14,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:14,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:14,317 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -327709568, now seen corresponding path program 1 times [2022-11-16 11:42:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023988802] [2022-11-16 11:42:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:14,381 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:14,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977364048] [2022-11-16 11:42:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:14,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:14,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:14,383 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:14,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-16 11:42:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:15,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 11:42:15,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-16 11:42:15,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:42:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-16 11:42:15,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:15,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023988802] [2022-11-16 11:42:15,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:15,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977364048] [2022-11-16 11:42:15,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977364048] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:42:15,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:42:15,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-11-16 11:42:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571348282] [2022-11-16 11:42:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:15,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:42:15,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:15,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:42:15,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:42:15,743 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-16 11:42:15,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:15,853 INFO L93 Difference]: Finished difference Result 308 states and 368 transitions. [2022-11-16 11:42:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:42:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 226 [2022-11-16 11:42:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:15,856 INFO L225 Difference]: With dead ends: 308 [2022-11-16 11:42:15,856 INFO L226 Difference]: Without dead ends: 306 [2022-11-16 11:42:15,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:42:15,858 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:15,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1229 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:42:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-16 11:42:15,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 292. [2022-11-16 11:42:15,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 205 states have (on average 1.2048780487804878) internal successors, (247), 207 states have internal predecessors, (247), 49 states have call successors, (49), 35 states have call predecessors, (49), 37 states have return successors, (55), 49 states have call predecessors, (55), 48 states have call successors, (55) [2022-11-16 11:42:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 351 transitions. [2022-11-16 11:42:15,892 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 351 transitions. Word has length 226 [2022-11-16 11:42:15,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:15,892 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 351 transitions. [2022-11-16 11:42:15,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-16 11:42:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 351 transitions. [2022-11-16 11:42:15,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-16 11:42:15,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:15,895 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:15,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-11-16 11:42:16,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-16 11:42:16,107 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:16,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1137056194, now seen corresponding path program 1 times [2022-11-16 11:42:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:16,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416121730] [2022-11-16 11:42:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:16,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:16,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:16,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602344084] [2022-11-16 11:42:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:16,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:16,185 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:16,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-16 11:42:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:17,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 3023 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 11:42:17,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:17,256 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 18 treesize of output 19 [2022-11-16 11:42:17,506 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:42:17,506 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 22 treesize of output 10 [2022-11-16 11:42:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-11-16 11:42:17,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:42:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416121730] [2022-11-16 11:42:17,510 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602344084] [2022-11-16 11:42:17,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602344084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:17,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:42:17,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255274886] [2022-11-16 11:42:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:17,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:42:17,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:42:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:42:17,513 INFO L87 Difference]: Start difference. First operand 292 states and 351 transitions. Second operand has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-16 11:42:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:17,707 INFO L93 Difference]: Finished difference Result 401 states and 490 transitions. [2022-11-16 11:42:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:42:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 226 [2022-11-16 11:42:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:17,711 INFO L225 Difference]: With dead ends: 401 [2022-11-16 11:42:17,711 INFO L226 Difference]: Without dead ends: 291 [2022-11-16 11:42:17,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:42:17,712 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 37 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:17,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1434 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 188 Unchecked, 0.1s Time] [2022-11-16 11:42:17,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-16 11:42:17,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2022-11-16 11:42:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 202 states have (on average 1.198019801980198) internal successors, (242), 204 states have internal predecessors, (242), 49 states have call successors, (49), 35 states have call predecessors, (49), 37 states have return successors, (55), 49 states have call predecessors, (55), 48 states have call successors, (55) [2022-11-16 11:42:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 346 transitions. [2022-11-16 11:42:17,744 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 346 transitions. Word has length 226 [2022-11-16 11:42:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:17,745 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 346 transitions. [2022-11-16 11:42:17,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 6 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-16 11:42:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 346 transitions. [2022-11-16 11:42:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-16 11:42:17,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:17,747 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:17,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:17,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:17,960 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1338459295, now seen corresponding path program 1 times [2022-11-16 11:42:17,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:17,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945475979] [2022-11-16 11:42:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:18,018 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:18,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963808843] [2022-11-16 11:42:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:18,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:18,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:18,020 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:18,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-16 11:42:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:18,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 3019 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:42:18,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-16 11:42:18,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:42:18,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:18,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945475979] [2022-11-16 11:42:18,999 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:18,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963808843] [2022-11-16 11:42:18,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963808843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:19,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:19,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:42:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082648896] [2022-11-16 11:42:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:19,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:42:19,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:42:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:42:19,002 INFO L87 Difference]: Start difference. First operand 289 states and 346 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-16 11:42:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:19,050 INFO L93 Difference]: Finished difference Result 403 states and 497 transitions. [2022-11-16 11:42:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:42:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 1 states have call successors, (27) Word has length 226 [2022-11-16 11:42:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:19,053 INFO L225 Difference]: With dead ends: 403 [2022-11-16 11:42:19,053 INFO L226 Difference]: Without dead ends: 282 [2022-11-16 11:42:19,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:42:19,054 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:19,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 813 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:42:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-16 11:42:19,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2022-11-16 11:42:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 193 states have (on average 1.1968911917098446) internal successors, (231), 194 states have internal predecessors, (231), 49 states have call successors, (49), 34 states have call predecessors, (49), 35 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2022-11-16 11:42:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 333 transitions. [2022-11-16 11:42:19,084 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 333 transitions. Word has length 226 [2022-11-16 11:42:19,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:19,085 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 333 transitions. [2022-11-16 11:42:19,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-16 11:42:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 333 transitions. [2022-11-16 11:42:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-16 11:42:19,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:19,087 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:19,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:19,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-16 11:42:19,305 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:19,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:19,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1959781448, now seen corresponding path program 1 times [2022-11-16 11:42:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:19,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499752468] [2022-11-16 11:42:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:19,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:19,373 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:19,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826820609] [2022-11-16 11:42:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:19,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:19,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:19,375 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:19,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-16 11:42:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:21,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-16 11:42:21,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-16 11:42:21,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:42:21,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:21,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499752468] [2022-11-16 11:42:21,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:21,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826820609] [2022-11-16 11:42:21,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826820609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:21,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:21,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:42:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362266624] [2022-11-16 11:42:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:21,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:42:21,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:42:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:42:21,175 INFO L87 Difference]: Start difference. First operand 278 states and 333 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, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 11:42:21,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:21,227 INFO L93 Difference]: Finished difference Result 471 states and 567 transitions. [2022-11-16 11:42:21,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:42:21,228 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, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 236 [2022-11-16 11:42:21,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:21,230 INFO L225 Difference]: With dead ends: 471 [2022-11-16 11:42:21,230 INFO L226 Difference]: Without dead ends: 279 [2022-11-16 11:42:21,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:42:21,232 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 2 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:21,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 607 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:42:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-16 11:42:21,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-11-16 11:42:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 194 states have (on average 1.1958762886597938) internal successors, (232), 195 states have internal predecessors, (232), 49 states have call successors, (49), 34 states have call predecessors, (49), 35 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2022-11-16 11:42:21,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 334 transitions. [2022-11-16 11:42:21,266 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 334 transitions. Word has length 236 [2022-11-16 11:42:21,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:21,266 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 334 transitions. [2022-11-16 11:42:21,266 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, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-16 11:42:21,267 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 334 transitions. [2022-11-16 11:42:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-16 11:42:21,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:21,268 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:21,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:21,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-16 11:42:21,486 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:21,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1033887265, now seen corresponding path program 1 times [2022-11-16 11:42:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:21,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988570402] [2022-11-16 11:42:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:21,560 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:21,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488422358] [2022-11-16 11:42:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:21,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:21,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:21,562 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:21,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-16 11:42:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:27,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 3080 conjuncts, 500 conjunts are in the unsatisfiable core [2022-11-16 11:42:27,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:27,954 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 [2022-11-16 11:42:28,804 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:42:28,805 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 [2022-11-16 11:42:28,878 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 [2022-11-16 11:42:29,522 INFO L321 Elim1Store]: treesize reduction 119, result has 24.2 percent of original size [2022-11-16 11:42:29,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 142 treesize of output 159 [2022-11-16 11:42:29,869 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 [2022-11-16 11:42:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:42:30,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 11:42:30,122 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 [2022-11-16 11:42:30,130 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 12 treesize of output 14 [2022-11-16 11:42:30,147 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-16 11:42:30,160 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 [2022-11-16 11:42:30,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:42:30,171 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 66 [2022-11-16 11:42:34,522 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-16 11:42:34,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-16 11:42:34,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-16 11:42:34,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:42:34,820 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2022-11-16 11:42:34,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-16 11:42:34,834 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 7 treesize of output 3 [2022-11-16 11:42:35,085 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 [2022-11-16 11:42:35,359 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v___CPROVER_overflow_plus_~#c~0.base_86| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86| 0)) (= (select |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86|) 0))) (exists ((v_ArrVal_5484 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5484) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5485 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5485))) (exists ((v_ArrVal_5483 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5483)))) is different from true [2022-11-16 11:42:35,645 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 11:42:35,646 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 24 treesize of output 23 [2022-11-16 11:42:36,973 INFO L321 Elim1Store]: treesize reduction 261, result has 16.6 percent of original size [2022-11-16 11:42:36,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 90 treesize of output 119 [2022-11-16 11:42:37,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-16 11:42:37,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-11-16 11:42:37,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:42:37,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:42:37,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2022-11-16 11:42:38,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-16 11:42:38,585 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:38,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:42,918 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-16 11:42:42,918 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 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:42:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 196 proven. 55 refuted. 0 times theorem prover too weak. 38 trivial. 3 not checked. [2022-11-16 11:42:43,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:42:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-16 11:42:50,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988570402] [2022-11-16 11:42:50,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:50,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488422358] [2022-11-16 11:42:50,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488422358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:42:50,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:42:50,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 7] total 67 [2022-11-16 11:42:50,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603068651] [2022-11-16 11:42:50,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:42:50,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-16 11:42:50,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:50,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-16 11:42:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=3994, Unknown=29, NotChecked=128, Total=4422 [2022-11-16 11:42:50,350 INFO L87 Difference]: Start difference. First operand 279 states and 334 transitions. Second operand has 67 states, 55 states have (on average 3.727272727272727) internal successors, (205), 53 states have internal predecessors, (205), 24 states have call successors, (65), 10 states have call predecessors, (65), 20 states have return successors, (62), 26 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-16 11:42:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:57,812 INFO L93 Difference]: Finished difference Result 563 states and 673 transitions. [2022-11-16 11:42:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-16 11:42:57,813 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 55 states have (on average 3.727272727272727) internal successors, (205), 53 states have internal predecessors, (205), 24 states have call successors, (65), 10 states have call predecessors, (65), 20 states have return successors, (62), 26 states have call predecessors, (62), 23 states have call successors, (62) Word has length 237 [2022-11-16 11:42:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:57,815 INFO L225 Difference]: With dead ends: 563 [2022-11-16 11:42:57,815 INFO L226 Difference]: Without dead ends: 369 [2022-11-16 11:42:57,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 397 SyntacticMatches, 14 SemanticMatches, 93 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2800 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=524, Invalid=8187, Unknown=35, NotChecked=184, Total=8930 [2022-11-16 11:42:57,819 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 176 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1198 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:57,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1365 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 848 Invalid, 0 Unknown, 1198 Unchecked, 1.4s Time] [2022-11-16 11:42:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-16 11:42:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2022-11-16 11:42:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 254 states have (on average 1.1574803149606299) internal successors, (294), 257 states have internal predecessors, (294), 63 states have call successors, (63), 45 states have call predecessors, (63), 48 states have return successors, (73), 63 states have call predecessors, (73), 62 states have call successors, (73) [2022-11-16 11:42:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 430 transitions. [2022-11-16 11:42:57,865 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 430 transitions. Word has length 237 [2022-11-16 11:42:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:57,866 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 430 transitions. [2022-11-16 11:42:57,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 55 states have (on average 3.727272727272727) internal successors, (205), 53 states have internal predecessors, (205), 24 states have call successors, (65), 10 states have call predecessors, (65), 20 states have return successors, (62), 26 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-16 11:42:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 430 transitions. [2022-11-16 11:42:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-16 11:42:57,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:57,869 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:57,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:58,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-16 11:42:58,085 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1967104833, now seen corresponding path program 1 times [2022-11-16 11:42:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:58,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774953896] [2022-11-16 11:42:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:58,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:58,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:42:58,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453644630] [2022-11-16 11:42:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:58,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:58,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:58,167 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:58,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-16 11:42:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:42:59,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-16 11:42:59,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:42:59,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:59,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774953896] [2022-11-16 11:42:59,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:42:59,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453644630] [2022-11-16 11:42:59,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453644630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:59,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:59,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:42:59,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478615920] [2022-11-16 11:42:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:59,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:42:59,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:42:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:42:59,314 INFO L87 Difference]: Start difference. First operand 366 states and 430 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 11:42:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:59,391 INFO L93 Difference]: Finished difference Result 647 states and 768 transitions. [2022-11-16 11:42:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:42:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 245 [2022-11-16 11:42:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:59,394 INFO L225 Difference]: With dead ends: 647 [2022-11-16 11:42:59,394 INFO L226 Difference]: Without dead ends: 361 [2022-11-16 11:42:59,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:42:59,396 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 2 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:59,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1220 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:42:59,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-16 11:42:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-11-16 11:42:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 251 states have (on average 1.155378486055777) internal successors, (290), 253 states have internal predecessors, (290), 62 states have call successors, (62), 45 states have call predecessors, (62), 47 states have return successors, (70), 62 states have call predecessors, (70), 61 states have call successors, (70) [2022-11-16 11:42:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 422 transitions. [2022-11-16 11:42:59,442 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 422 transitions. Word has length 245 [2022-11-16 11:42:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:59,442 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 422 transitions. [2022-11-16 11:42:59,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 11:42:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 422 transitions. [2022-11-16 11:42:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-16 11:42:59,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:59,445 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:59,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:59,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-16 11:42:59,659 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:59,659 INFO L85 PathProgramCache]: Analyzing trace with hash 921062443, now seen corresponding path program 1 times [2022-11-16 11:42:59,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:59,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138384678] [2022-11-16 11:42:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:43:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:43:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:43:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:43:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:43:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:43:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:43:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 11:43:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 11:43:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 11:43:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:43:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:43:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:43:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:43:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:43:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:43:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 11:43:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:43:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:43:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:43:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 11:43:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-16 11:43:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 11:43:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:43:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:43:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:43:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:43:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:43:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-16 11:43:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:43:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 11:43:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:43:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-16 11:43:00,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:00,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138384678] [2022-11-16 11:43:00,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138384678] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:43:00,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909683] [2022-11-16 11:43:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:00,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:43:00,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:43:00,700 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:43:00,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-16 11:43:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:01,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:43:01,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:43:01,837 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-16 11:43:01,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:43:01,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:01,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:43:01,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 11 [2022-11-16 11:43:01,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800369788] [2022-11-16 11:43:01,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:01,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:43:01,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:01,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:43:01,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:43:01,840 INFO L87 Difference]: Start difference. First operand 361 states and 422 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 11:43:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:01,920 INFO L93 Difference]: Finished difference Result 616 states and 720 transitions. [2022-11-16 11:43:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:43:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 251 [2022-11-16 11:43:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:01,923 INFO L225 Difference]: With dead ends: 616 [2022-11-16 11:43:01,923 INFO L226 Difference]: Without dead ends: 331 [2022-11-16 11:43:01,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:43:01,925 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:01,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1197 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:43:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-16 11:43:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-11-16 11:43:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 232 states have (on average 1.1594827586206897) internal successors, (269), 234 states have internal predecessors, (269), 54 states have call successors, (54), 44 states have call predecessors, (54), 44 states have return successors, (58), 52 states have call predecessors, (58), 53 states have call successors, (58) [2022-11-16 11:43:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 381 transitions. [2022-11-16 11:43:01,969 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 381 transitions. Word has length 251 [2022-11-16 11:43:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 381 transitions. [2022-11-16 11:43:01,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 11:43:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 381 transitions. [2022-11-16 11:43:01,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-16 11:43:01,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:01,972 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:01,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:43:02,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-16 11:43:02,184 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash 317714549, now seen corresponding path program 1 times [2022-11-16 11:43:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147336390] [2022-11-16 11:43:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:02,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:02,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:43:02,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586744599] [2022-11-16 11:43:02,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:02,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:43:02,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:43:02,282 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:43:02,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-16 11:43:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:14,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 11:43:14,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:43:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 142 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-11-16 11:43:14,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:43:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-16 11:43:14,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:14,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147336390] [2022-11-16 11:43:14,598 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:43:14,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586744599] [2022-11-16 11:43:14,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586744599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:43:14,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:43:14,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 11:43:14,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195823905] [2022-11-16 11:43:14,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:43:14,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:43:14,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:14,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:43:14,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:43:14,601 INFO L87 Difference]: Start difference. First operand 331 states and 381 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 11:43:14,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:14,997 INFO L93 Difference]: Finished difference Result 530 states and 626 transitions. [2022-11-16 11:43:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:43:14,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 246 [2022-11-16 11:43:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:15,000 INFO L225 Difference]: With dead ends: 530 [2022-11-16 11:43:15,000 INFO L226 Difference]: Without dead ends: 336 [2022-11-16 11:43:15,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:43:15,002 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 16 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:15,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1149 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:43:15,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-16 11:43:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-11-16 11:43:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 237 states have (on average 1.1561181434599157) internal successors, (274), 239 states have internal predecessors, (274), 54 states have call successors, (54), 44 states have call predecessors, (54), 44 states have return successors, (58), 52 states have call predecessors, (58), 53 states have call successors, (58) [2022-11-16 11:43:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 386 transitions. [2022-11-16 11:43:15,049 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 386 transitions. Word has length 246 [2022-11-16 11:43:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:15,050 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 386 transitions. [2022-11-16 11:43:15,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 11:43:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 386 transitions. [2022-11-16 11:43:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-16 11:43:15,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:15,052 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:15,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:43:15,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-16 11:43:15,277 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:15,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:15,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1959207112, now seen corresponding path program 2 times [2022-11-16 11:43:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:15,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168229319] [2022-11-16 11:43:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:15,340 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:43:15,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517014387] [2022-11-16 11:43:15,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:43:15,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:43:15,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:43:15,341 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:43:15,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-16 11:43:37,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:43:37,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:43:37,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 3213 conjuncts, 468 conjunts are in the unsatisfiable core [2022-11-16 11:43:37,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:43:37,287 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 [2022-11-16 11:43:37,832 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:43:37,833 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 [2022-11-16 11:43:37,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:43:38,567 INFO L321 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2022-11-16 11:43:38,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 123 [2022-11-16 11:43:38,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:43:39,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:43:39,059 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 11:43:39,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-16 11:43:39,186 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 [2022-11-16 11:43:39,197 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 11:43:39,205 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 11 treesize of output 7 [2022-11-16 11:43:39,215 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 25 treesize of output 25 [2022-11-16 11:43:39,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:43:41,427 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-16 11:43:41,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-16 11:43:41,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-16 11:43:41,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-16 11:43:41,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:43:41,834 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 [2022-11-16 11:43:42,117 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7028 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7028) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_7027 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7027))) (exists ((v_ArrVal_7029 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7029) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_7008 Int) (|v___CPROVER_overflow_mult_~#c~1.base_310| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310| v_ArrVal_7008)) (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310|) 0)))) is different from true [2022-11-16 11:43:42,395 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 11:43:42,395 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 24 treesize of output 23 [2022-11-16 11:43:42,655 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7032 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7032) |c_#memory_int|)) (exists ((v_ArrVal_7033 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7033) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_7031 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7031) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_7008 Int) (|v___CPROVER_overflow_mult_~#c~1.base_310| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310| v_ArrVal_7008)) (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310|) 0)))) is different from true [2022-11-16 11:43:43,444 INFO L321 Elim1Store]: treesize reduction 173, result has 26.4 percent of original size [2022-11-16 11:43:43,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 186 [2022-11-16 11:43:43,495 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 11:43:43,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2022-11-16 11:43:43,533 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 11:43:43,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2022-11-16 11:43:43,567 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 11:43:43,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-16 11:43:44,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 22 [2022-11-16 11:43:44,588 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:43:44,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:43:47,005 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-16 11:43:47,006 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 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:43:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 194 proven. 93 refuted. 0 times theorem prover too weak. 34 trivial. 6 not checked. [2022-11-16 11:43:48,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:43:51,639 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7068 (Array Int Int))) (not (< 0 (mod (select (select (store |c_#memory_int| |c_aws_hash_iter_begin_~#iter~1.base| v_ArrVal_7068) c_aws_hash_iter_begin_~state~11.base) (+ 40 c_aws_hash_iter_begin_~state~11.offset)) 18446744073709551616)))) is different from false [2022-11-16 11:43:55,704 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-16 11:43:55,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168229319] [2022-11-16 11:43:55,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:43:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517014387] [2022-11-16 11:43:55,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517014387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:43:55,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:43:55,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 20] total 79 [2022-11-16 11:43:55,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721360657] [2022-11-16 11:43:55,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:43:55,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-11-16 11:43:55,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:55,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-11-16 11:43:55,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=5318, Unknown=31, NotChecked=450, Total=6162 [2022-11-16 11:43:55,709 INFO L87 Difference]: Start difference. First operand 336 states and 386 transitions. Second operand has 79 states, 69 states have (on average 3.217391304347826) internal successors, (222), 67 states have internal predecessors, (222), 24 states have call successors, (65), 11 states have call predecessors, (65), 21 states have return successors, (62), 25 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-16 11:43:56,317 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7032 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7032) |c_#memory_int|)) (exists ((v_ArrVal_7033 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7033) |c_#memory_$Pointer$.base|)) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_183| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_183| 0)) (= (select |c_old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_183|) 0))) (exists ((v_ArrVal_7031 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_7031) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_7008 Int) (|v___CPROVER_overflow_mult_~#c~1.base_310| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310| v_ArrVal_7008)) (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_310|) 0)))) is different from true [2022-11-16 11:44:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:08,398 INFO L93 Difference]: Finished difference Result 562 states and 671 transitions. [2022-11-16 11:44:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-11-16 11:44:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 69 states have (on average 3.217391304347826) internal successors, (222), 67 states have internal predecessors, (222), 24 states have call successors, (65), 11 states have call predecessors, (65), 21 states have return successors, (62), 25 states have call predecessors, (62), 23 states have call successors, (62) Word has length 244 [2022-11-16 11:44:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:08,402 INFO L225 Difference]: With dead ends: 562 [2022-11-16 11:44:08,402 INFO L226 Difference]: Without dead ends: 369 [2022-11-16 11:44:08,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 399 SyntacticMatches, 17 SemanticMatches, 109 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3567 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=701, Invalid=10609, Unknown=48, NotChecked=852, Total=12210 [2022-11-16 11:44:08,408 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 213 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 4394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2584 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:08,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 2386 Invalid, 4394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1680 Invalid, 0 Unknown, 2584 Unchecked, 3.0s Time] [2022-11-16 11:44:08,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-16 11:44:08,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2022-11-16 11:44:08,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 259 states have (on average 1.1776061776061777) internal successors, (305), 264 states have internal predecessors, (305), 59 states have call successors, (59), 45 states have call predecessors, (59), 48 states have return successors, (68), 57 states have call predecessors, (68), 58 states have call successors, (68) [2022-11-16 11:44:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 432 transitions. [2022-11-16 11:44:08,475 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 432 transitions. Word has length 244 [2022-11-16 11:44:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:08,475 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 432 transitions. [2022-11-16 11:44:08,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 69 states have (on average 3.217391304347826) internal successors, (222), 67 states have internal predecessors, (222), 24 states have call successors, (65), 11 states have call predecessors, (65), 21 states have return successors, (62), 25 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-16 11:44:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 432 transitions. [2022-11-16 11:44:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-16 11:44:08,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:08,479 INFO L195 NwaCegarLoop]: trace histogram [17, 9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:08,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-16 11:44:08,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-16 11:44:08,701 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1649081055, now seen corresponding path program 3 times [2022-11-16 11:44:08,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:08,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013831302] [2022-11-16 11:44:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:08,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:44:08,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737459372] [2022-11-16 11:44:08,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:44:08,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:44:08,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:08,784 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:44:08,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-16 11:44:22,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-16 11:44:22,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:44:22,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-16 11:44:22,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:44:22,704 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-11-16 11:44:22,715 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 11 treesize of output 7 [2022-11-16 11:44:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:44:22,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2022-11-16 11:44:22,735 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 [2022-11-16 11:44:23,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:44:23,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 15 [2022-11-16 11:44:23,779 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 7 treesize of output 3 [2022-11-16 11:44:23,784 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 34 treesize of output 18 [2022-11-16 11:44:23,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:44:24,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-16 11:44:24,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:44:24,739 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 52 treesize of output 34 [2022-11-16 11:44:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 151 proven. 59 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-11-16 11:44:24,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:44:26,209 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 34 treesize of output 30 [2022-11-16 11:44:26,419 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 34 treesize of output 30 [2022-11-16 11:44:27,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2022-11-16 11:44:27,708 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 26 [2022-11-16 11:44:27,726 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 26 [2022-11-16 11:44:27,744 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:44:27,745 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 55 [2022-11-16 11:44:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:44:27,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:44:27,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:44:27,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:44:27,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 52 treesize of output 40 [2022-11-16 11:44:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013831302] [2022-11-16 11:44:28,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:44:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737459372] [2022-11-16 11:44:28,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737459372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:44:28,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:44:28,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-11-16 11:44:28,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67640974] [2022-11-16 11:44:28,703 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 11:44:28,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:44:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:44:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1691, Unknown=0, NotChecked=0, Total=1806 [2022-11-16 11:44:28,705 INFO L87 Difference]: Start difference. First operand 367 states and 432 transitions. Second operand has 25 states, 21 states have (on average 5.857142857142857) internal successors, (123), 24 states have internal predecessors, (123), 13 states have call successors, (35), 5 states have call predecessors, (35), 10 states have return successors, (33), 12 states have call predecessors, (33), 13 states have call successors, (33) [2022-11-16 11:44:31,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:31,599 INFO L93 Difference]: Finished difference Result 598 states and 714 transitions. [2022-11-16 11:44:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 11:44:31,600 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 5.857142857142857) internal successors, (123), 24 states have internal predecessors, (123), 13 states have call successors, (35), 5 states have call predecessors, (35), 10 states have return successors, (33), 12 states have call predecessors, (33), 13 states have call successors, (33) Word has length 253 [2022-11-16 11:44:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:31,602 INFO L225 Difference]: With dead ends: 598 [2022-11-16 11:44:31,602 INFO L226 Difference]: Without dead ends: 341 [2022-11-16 11:44:31,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 451 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=270, Invalid=3762, Unknown=0, NotChecked=0, Total=4032 [2022-11-16 11:44:31,611 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 53 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 308 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:31,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2881 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 802 Invalid, 0 Unknown, 308 Unchecked, 1.1s Time] [2022-11-16 11:44:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-11-16 11:44:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2022-11-16 11:44:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 241 states have (on average 1.1867219917012448) internal successors, (286), 244 states have internal predecessors, (286), 53 states have call successors, (53), 41 states have call predecessors, (53), 44 states have return successors, (60), 53 states have call predecessors, (60), 52 states have call successors, (60) [2022-11-16 11:44:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 399 transitions. [2022-11-16 11:44:31,679 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 399 transitions. Word has length 253 [2022-11-16 11:44:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:31,679 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 399 transitions. [2022-11-16 11:44:31,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 5.857142857142857) internal successors, (123), 24 states have internal predecessors, (123), 13 states have call successors, (35), 5 states have call predecessors, (35), 10 states have return successors, (33), 12 states have call predecessors, (33), 13 states have call successors, (33) [2022-11-16 11:44:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 399 transitions. [2022-11-16 11:44:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-16 11:44:31,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:31,682 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:31,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:44:31,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:44:31,909 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash -618026027, now seen corresponding path program 2 times [2022-11-16 11:44:31,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:31,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143475034] [2022-11-16 11:44:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:32,005 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:44:32,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808990792] [2022-11-16 11:44:32,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:44:32,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:44:32,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:32,006 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:44:32,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-16 11:45:22,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:45:22,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:45:22,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-16 11:45:22,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:45:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 142 proven. 153 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-11-16 11:45:22,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:45:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-16 11:45:24,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:24,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143475034] [2022-11-16 11:45:24,207 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:45:24,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808990792] [2022-11-16 11:45:24,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808990792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:45:24,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:45:24,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2022-11-16 11:45:24,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820066187] [2022-11-16 11:45:24,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:45:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-16 11:45:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:24,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-16 11:45:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2022-11-16 11:45:24,210 INFO L87 Difference]: Start difference. First operand 339 states and 399 transitions. Second operand has 40 states, 40 states have (on average 3.575) internal successors, (143), 40 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 11:46:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:32,661 INFO L93 Difference]: Finished difference Result 576 states and 700 transitions. [2022-11-16 11:46:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 11:46:32,662 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.575) internal successors, (143), 40 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 260 [2022-11-16 11:46:32,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:32,663 INFO L225 Difference]: With dead ends: 576 [2022-11-16 11:46:32,663 INFO L226 Difference]: Without dead ends: 352 [2022-11-16 11:46:32,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 68.9s TimeCoverageRelationStatistics Valid=1516, Invalid=2904, Unknown=2, NotChecked=0, Total=4422 [2022-11-16 11:46:32,665 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 386 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 4153 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:32,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 4153 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:46:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-16 11:46:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 344. [2022-11-16 11:46:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 252 states have (on average 1.1388888888888888) internal successors, (287), 253 states have internal predecessors, (287), 49 states have call successors, (49), 41 states have call predecessors, (49), 42 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2022-11-16 11:46:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 389 transitions. [2022-11-16 11:46:32,729 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 389 transitions. Word has length 260 [2022-11-16 11:46:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:32,730 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 389 transitions. [2022-11-16 11:46:32,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.575) internal successors, (143), 40 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 11:46:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 389 transitions. [2022-11-16 11:46:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-16 11:46:32,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:32,732 INFO L195 NwaCegarLoop]: trace histogram [36, 10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:32,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:46:32,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:46:32,945 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:32,946 INFO L85 PathProgramCache]: Analyzing trace with hash 107104962, now seen corresponding path program 3 times [2022-11-16 11:46:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:32,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297697023] [2022-11-16 11:46:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:32,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:33,063 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:46:33,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102472265] [2022-11-16 11:46:33,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:46:33,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:46:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:46:33,066 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:46:33,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-16 11:48:48,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-16 11:48:48,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:48:48,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 3296 conjuncts, 510 conjunts are in the unsatisfiable core [2022-11-16 11:48:48,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:48:48,234 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 [2022-11-16 11:48:48,593 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:48:48,594 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 [2022-11-16 11:48:48,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:48:48,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:48:49,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-16 11:48:49,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:48:49,833 INFO L321 Elim1Store]: treesize reduction 203, result has 13.6 percent of original size [2022-11-16 11:48:49,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 67 treesize of output 78 [2022-11-16 11:48:52,856 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-16 11:48:52,856 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 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:48:53,773 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 140 proven. 18 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2022-11-16 11:48:53,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:48:55,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:55,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297697023] [2022-11-16 11:48:55,070 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:48:55,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102472265] [2022-11-16 11:48:55,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102472265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:48:55,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:48:55,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2022-11-16 11:48:55,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875092655] [2022-11-16 11:48:55,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 11:48:55,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-16 11:48:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:55,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-16 11:48:55,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1015, Unknown=1, NotChecked=0, Total=1122 [2022-11-16 11:48:55,072 INFO L87 Difference]: Start difference. First operand 344 states and 389 transitions. Second operand has 31 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 11 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 9 states have call predecessors, (32), 11 states have call successors, (32) [2022-11-16 11:48:55,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:55,400 INFO L93 Difference]: Finished difference Result 371 states and 415 transitions. [2022-11-16 11:48:55,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 11:48:55,400 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 11 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 9 states have call predecessors, (32), 11 states have call successors, (32) Word has length 279 [2022-11-16 11:48:55,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:55,400 INFO L225 Difference]: With dead ends: 371 [2022-11-16 11:48:55,401 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:48:55,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 399 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=120, Invalid=1139, Unknown=1, NotChecked=0, Total=1260 [2022-11-16 11:48:55,403 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 17 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:55,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 348 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 262 Unchecked, 0.1s Time] [2022-11-16 11:48:55,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:48:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:48:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:48:55,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 279 [2022-11-16 11:48:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:55,405 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:48:55,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 11 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (32), 9 states have call predecessors, (32), 11 states have call successors, (32) [2022-11-16 11:48:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:48:55,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:48:55,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:48:55,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:48:55,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:48:55,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:48:57,355 INFO L899 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2022-11-16 11:48:57,357 INFO L895 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (forall ((|aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_11| Int)) (or (not (= (+ (* 442721857769029238784 |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105|) (* |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| 24)) (+ 29629528 (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_11|) 0)))) (not (<= |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| 32)) (not (<= 0 |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105|)))) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,357 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (forall ((|aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_11| Int)) (or (not (= (+ (* 442721857769029238784 |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105|) (* |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| 24)) (+ 29629528 (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_11|) 0)))) (not (<= |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105| 32)) (not (<= 0 |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_23_105|))))) [2022-11-16 11:48:57,357 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2022-11-16 11:48:57,357 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2022-11-16 11:48:57,358 INFO L899 garLoopResultBuilder]: For program point L9825-4(line 9825) no Hoare annotation was computed. [2022-11-16 11:48:57,358 INFO L899 garLoopResultBuilder]: For program point L9821-1(line 9821) no Hoare annotation was computed. [2022-11-16 11:48:57,358 INFO L899 garLoopResultBuilder]: For program point L9821-2(line 9821) no Hoare annotation was computed. [2022-11-16 11:48:57,358 INFO L902 garLoopResultBuilder]: At program point L9825-6(line 9825) the Hoare annotation is: true [2022-11-16 11:48:57,358 INFO L902 garLoopResultBuilder]: At program point L9821-3(line 9821) the Hoare annotation is: true [2022-11-16 11:48:57,358 INFO L899 garLoopResultBuilder]: For program point L9825-7(line 9825) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point L9825(line 9825) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point L9825-1(line 9825) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_beginEXIT(lines 9817 9830) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point L9825-2(line 9825) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point L9821-4(line 9821) no Hoare annotation was computed. [2022-11-16 11:48:57,359 INFO L902 garLoopResultBuilder]: At program point L9825-8(lines 9824 9829) the Hoare annotation is: true [2022-11-16 11:48:57,359 INFO L899 garLoopResultBuilder]: For program point L9825-9(lines 9825 9829) no Hoare annotation was computed. [2022-11-16 11:48:57,360 INFO L902 garLoopResultBuilder]: At program point aws_hash_iter_beginENTRY(lines 9817 9830) the Hoare annotation is: true [2022-11-16 11:48:57,360 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_beginFINAL(lines 9817 9830) no Hoare annotation was computed. [2022-11-16 11:48:57,360 INFO L902 garLoopResultBuilder]: At program point L9818(line 9818) the Hoare annotation is: true [2022-11-16 11:48:57,360 INFO L902 garLoopResultBuilder]: At program point L9824(line 9824) the Hoare annotation is: true [2022-11-16 11:48:57,360 INFO L902 garLoopResultBuilder]: At program point L9818-1(line 9818) the Hoare annotation is: true [2022-11-16 11:48:57,360 INFO L899 garLoopResultBuilder]: For program point L9818-2(line 9818) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L899 garLoopResultBuilder]: For program point L9990-5(line 9990) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L899 garLoopResultBuilder]: For program point L9990-7(line 9990) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L902 garLoopResultBuilder]: At program point aws_hash_table_is_validENTRY(lines 9988 9991) the Hoare annotation is: true [2022-11-16 11:48:57,361 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validEXIT(lines 9988 9991) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L899 garLoopResultBuilder]: For program point L9990-2(line 9990) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L899 garLoopResultBuilder]: For program point L9990-3(line 9990) no Hoare annotation was computed. [2022-11-16 11:48:57,361 INFO L902 garLoopResultBuilder]: At program point L9990-4(line 9990) the Hoare annotation is: true [2022-11-16 11:48:57,362 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validFINAL(lines 9988 9991) no Hoare annotation was computed. [2022-11-16 11:48:57,362 INFO L899 garLoopResultBuilder]: For program point L9990(line 9990) no Hoare annotation was computed. [2022-11-16 11:48:57,362 INFO L895 garLoopResultBuilder]: At program point L10108(line 10108) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (let ((.cse0 (* |hash_table_state_required_bytes_#in~size| 24))) (and (= .cse0 |hash_table_state_required_bytes_#t~mem1318|) (exists ((v_ArrVal_7028 (Array Int Int))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_7028))) (exists ((v_ArrVal_7029 (Array Int Int))) (= (store |old(#memory_$Pointer$.base)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_7029) |#memory_$Pointer$.base|)) (exists ((v_ArrVal_5485 (Array Int Int))) (= |#memory_int| (store |old(#memory_int)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_5485))) (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (< |#StackHeapBarrier| |hash_table_state_required_bytes_~#elemsize~0.base|) (or (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0) (= (select (select |#memory_int| |hash_table_state_required_bytes_~#elemsize~0.base|) |hash_table_state_required_bytes_~#elemsize~0.offset|) .cse0) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_415| Int)) (let ((.cse1 (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| 1))) (and (= (store .cse1 |v___CPROVER_overflow_mult_~#c~1.base_415| 0) |#valid|) (= (select .cse1 |v___CPROVER_overflow_mult_~#c~1.base_415|) 0))))))) [2022-11-16 11:48:57,362 INFO L895 garLoopResultBuilder]: At program point hash_table_state_required_bytesENTRY(lines 10101 10113) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10108-1(line 10108) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10108-2(lines 10108 10110) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L895 garLoopResultBuilder]: At program point L10104(line 10104) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#memory_real)| |#memory_real|) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| 1) |#valid|) (= |#memory_int| |old(#memory_int)|) (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (< |#StackHeapBarrier| |hash_table_state_required_bytes_~#elemsize~0.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0))) [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10104-1(line 10104) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesEXIT(lines 10101 10113) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10104-2(lines 10104 10106) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesFINAL(lines 10101 10113) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10075(lines 10075 10088) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10079(line 10079) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L899 garLoopResultBuilder]: For program point L10069(lines 10069 10073) no Hoare annotation was computed. [2022-11-16 11:48:57,363 INFO L902 garLoopResultBuilder]: At program point aws_hash_iter_is_validENTRY(lines 10052 10093) the Hoare annotation is: true [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10059(lines 10059 10063) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10082(lines 10082 10083) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10076(line 10076) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10082-2(lines 10082 10083) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_is_validEXIT(lines 10052 10093) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L902 garLoopResultBuilder]: At program point L10064(line 10064) the Hoare annotation is: true [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10064-1(lines 10064 10068) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10085(line 10085) no Hoare annotation was computed. [2022-11-16 11:48:57,364 INFO L899 garLoopResultBuilder]: For program point L10087-2(line 10087) no Hoare annotation was computed. [2022-11-16 11:48:57,365 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_is_validFINAL(lines 10052 10093) no Hoare annotation was computed. [2022-11-16 11:48:57,365 INFO L899 garLoopResultBuilder]: For program point L10087(line 10087) no Hoare annotation was computed. [2022-11-16 11:48:57,365 INFO L899 garLoopResultBuilder]: For program point L10054(lines 10054 10058) no Hoare annotation was computed. [2022-11-16 11:48:57,365 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedEXIT(lines 2586 2594) no Hoare annotation was computed. [2022-11-16 11:48:57,365 INFO L899 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2022-11-16 11:48:57,367 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedFINAL(lines 2586 2594) no Hoare annotation was computed. [2022-11-16 11:48:57,367 INFO L895 garLoopResultBuilder]: At program point aws_mul_size_checkedENTRY(lines 2586 2594) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,367 INFO L895 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: (let ((.cse0 (or (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (and (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 0)))) (.cse1 (< 0 |#StackHeapBarrier|))) (or (and (<= (+ |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 1) 0) .cse0 .cse1) (not .cse1) (and (= (* |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_#in~a#1|) (select (select |#memory_int| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset|)) (exists ((v_ArrVal_7027 (Array Int Int))) (= |#memory_int| (store |old(#memory_int)| |aws_mul_size_checked_#in~r#1.base| v_ArrVal_7027))) (exists ((v_ArrVal_7029 (Array Int Int))) (= (store |old(#memory_$Pointer$.base)| |aws_mul_size_checked_#in~r#1.base| v_ArrVal_7029) |#memory_$Pointer$.base|)) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (exists ((v_ArrVal_7028 (Array Int Int))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |aws_mul_size_checked_#in~r#1.base| v_ArrVal_7028))) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_86| Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86| 0) |#valid|))) .cse0 (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|) .cse1))) [2022-11-16 11:48:57,367 INFO L895 garLoopResultBuilder]: At program point L2498(line 2498) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-16 11:48:57,367 INFO L899 garLoopResultBuilder]: For program point L2499-1(line 2499) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L895 garLoopResultBuilder]: At program point L2499(line 2499) the Hoare annotation is: (or (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_86| Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86| 0) |#valid|)))) (not (< 0 |#StackHeapBarrier|))) [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L902 garLoopResultBuilder]: At program point hash_table_state_is_validENTRY(lines 9999 10046) the Hoare annotation is: true [2022-11-16 11:48:57,368 INFO L902 garLoopResultBuilder]: At program point L10027(line 10027) the Hoare annotation is: true [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point L10027-1(line 10027) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validEXIT(lines 9999 10046) no Hoare annotation was computed. [2022-11-16 11:48:57,368 INFO L899 garLoopResultBuilder]: For program point L10001(lines 10001 10005) no Hoare annotation was computed. [2022-11-16 11:48:57,369 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validFINAL(lines 9999 10046) no Hoare annotation was computed. [2022-11-16 11:48:57,369 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,369 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-11-16 11:48:57,369 INFO L902 garLoopResultBuilder]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2022-11-16 11:48:57,369 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,369 INFO L902 garLoopResultBuilder]: At program point L9796-3(lines 9796 9805) the Hoare annotation is: true [2022-11-16 11:48:57,369 INFO L902 garLoopResultBuilder]: At program point L9792(line 9792) the Hoare annotation is: true [2022-11-16 11:48:57,369 INFO L899 garLoopResultBuilder]: For program point L9796-4(lines 9796 9805) no Hoare annotation was computed. [2022-11-16 11:48:57,369 INFO L902 garLoopResultBuilder]: At program point L9792-1(line 9792) the Hoare annotation is: true [2022-11-16 11:48:57,369 INFO L899 garLoopResultBuilder]: For program point L9792-2(line 9792) no Hoare annotation was computed. [2022-11-16 11:48:57,370 INFO L899 garLoopResultBuilder]: For program point s_get_next_elementEXIT(lines 9788 9815) no Hoare annotation was computed. [2022-11-16 11:48:57,370 INFO L899 garLoopResultBuilder]: For program point L9799(lines 9799 9804) no Hoare annotation was computed. [2022-11-16 11:48:57,370 INFO L902 garLoopResultBuilder]: At program point L9789(lines 9789 9791) the Hoare annotation is: true [2022-11-16 11:48:57,370 INFO L899 garLoopResultBuilder]: For program point L9789-1(lines 9789 9791) no Hoare annotation was computed. [2022-11-16 11:48:57,371 INFO L902 garLoopResultBuilder]: At program point L9814-1(line 9814) the Hoare annotation is: true [2022-11-16 11:48:57,371 INFO L899 garLoopResultBuilder]: For program point L9814-2(line 9814) no Hoare annotation was computed. [2022-11-16 11:48:57,371 INFO L902 garLoopResultBuilder]: At program point s_get_next_elementENTRY(lines 9788 9815) the Hoare annotation is: true [2022-11-16 11:48:57,371 INFO L902 garLoopResultBuilder]: At program point L9814(line 9814) the Hoare annotation is: true [2022-11-16 11:48:57,371 INFO L899 garLoopResultBuilder]: For program point L9796-2(lines 9796 9805) no Hoare annotation was computed. [2022-11-16 11:48:57,371 INFO L899 garLoopResultBuilder]: For program point s_get_next_elementFINAL(lines 9788 9815) no Hoare annotation was computed. [2022-11-16 11:48:57,371 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-16 11:48:57,372 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-16 11:48:57,372 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-16 11:48:57,372 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-16 11:48:57,372 INFO L895 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) [2022-11-16 11:48:57,372 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2022-11-16 11:48:57,372 INFO L899 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2022-11-16 11:48:57,372 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2022-11-16 11:48:57,373 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_multENTRY(lines 253 256) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,373 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multEXIT(lines 253 256) no Hoare annotation was computed. [2022-11-16 11:48:57,373 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multFINAL(lines 253 256) no Hoare annotation was computed. [2022-11-16 11:48:57,373 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoFINAL(lines 2626 2631) no Hoare annotation was computed. [2022-11-16 11:48:57,373 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoEXIT(lines 2626 2631) no Hoare annotation was computed. [2022-11-16 11:48:57,373 INFO L902 garLoopResultBuilder]: At program point aws_is_power_of_twoENTRY(lines 2626 2631) the Hoare annotation is: true [2022-11-16 11:48:57,374 INFO L895 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: (let ((.cse0 (or (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)))) (or (and (<= (+ |aws_add_size_checked_aws_add_u64_checked_#res#1| 1) 0) .cse0) (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= (select (select |#memory_int| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset|) (+ |aws_add_size_checked_#in~b#1| |aws_add_size_checked_#in~a#1|)) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (exists ((v_ArrVal_5488 (Array Int Int))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |aws_add_size_checked_#in~r#1.base| v_ArrVal_5488))) .cse0 (exists ((v_ArrVal_7032 (Array Int Int))) (= |#memory_int| (store |old(#memory_int)| |aws_add_size_checked_#in~r#1.base| v_ArrVal_7032))) (exists ((v_ArrVal_5487 (Array Int Int))) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| |aws_add_size_checked_#in~r#1.base| v_ArrVal_5487))) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_86| Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86| 0) |#valid|))) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|)))) [2022-11-16 11:48:57,374 INFO L895 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-16 11:48:57,374 INFO L895 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) [2022-11-16 11:48:57,374 INFO L899 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2022-11-16 11:48:57,375 INFO L895 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (exists ((|v___CPROVER_overflow_plus_~#c~0.base_86| Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_plus_~#c~0.base_86| 0) |#valid|))))) [2022-11-16 11:48:57,375 INFO L899 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2022-11-16 11:48:57,375 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2022-11-16 11:48:57,375 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2022-11-16 11:48:57,375 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-11-16 11:48:57,376 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (<= .cse0 32) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (not (= .cse0 0)) (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|)) (< 0 |#StackHeapBarrier|))) [2022-11-16 11:48:57,376 INFO L895 garLoopResultBuilder]: At program point L6811-1(line 6811) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 32) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (< 0 |#StackHeapBarrier|)) [2022-11-16 11:48:57,376 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (< 0 |#StackHeapBarrier|)) [2022-11-16 11:48:57,376 INFO L899 garLoopResultBuilder]: For program point L7195(lines 7195 7201) no Hoare annotation was computed. [2022-11-16 11:48:57,376 INFO L899 garLoopResultBuilder]: For program point L6815-3(line 6815) no Hoare annotation was computed. [2022-11-16 11:48:57,377 INFO L895 garLoopResultBuilder]: At program point L6815-2(line 6815) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|)) (.cse1 (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|)) (.cse3 (< 0 |#StackHeapBarrier|))) (or (and (<= (+ |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 1) 0) (<= 2 |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) .cse0 .cse1 .cse2 .cse3) (let ((.cse4 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (<= .cse4 32) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 0) .cse0 (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_415| Int)) (= (select |#valid| |v___CPROVER_overflow_mult_~#c~1.base_415|) 0)) .cse1 .cse2 (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= (+ 29629528 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|)) (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24)) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (not (= .cse4 0)) (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|)) .cse3)))) [2022-11-16 11:48:57,377 INFO L899 garLoopResultBuilder]: For program point L10127-2(line 10127) no Hoare annotation was computed. [2022-11-16 11:48:57,377 INFO L895 garLoopResultBuilder]: At program point L10123(line 10123) the Hoare annotation is: false [2022-11-16 11:48:57,377 INFO L899 garLoopResultBuilder]: For program point L10123-1(line 10123) no Hoare annotation was computed. [2022-11-16 11:48:57,378 INFO L899 garLoopResultBuilder]: For program point L7274(lines 7274 7278) no Hoare annotation was computed. [2022-11-16 11:48:57,378 INFO L895 garLoopResultBuilder]: At program point L10127(line 10127) the Hoare annotation is: false [2022-11-16 11:48:57,378 INFO L895 garLoopResultBuilder]: At program point L10127-1(line 10127) the Hoare annotation is: false [2022-11-16 11:48:57,378 INFO L895 garLoopResultBuilder]: At program point L7270(line 7270) the Hoare annotation is: false [2022-11-16 11:48:57,379 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: false [2022-11-16 11:48:57,379 INFO L899 garLoopResultBuilder]: For program point L7270-3(line 7270) no Hoare annotation was computed. [2022-11-16 11:48:57,379 INFO L895 garLoopResultBuilder]: At program point L7270-2(line 7270) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_save_byte_from_hash_table_#t~ret660#1| 1) 0) (<= 2 |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (< 0 |#StackHeapBarrier|)) [2022-11-16 11:48:57,379 INFO L899 garLoopResultBuilder]: For program point L7270-1(line 7270) no Hoare annotation was computed. [2022-11-16 11:48:57,379 INFO L899 garLoopResultBuilder]: For program point L6816-1(line 6816) no Hoare annotation was computed. [2022-11-16 11:48:57,379 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,380 INFO L895 garLoopResultBuilder]: At program point L6816(line 6816) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616)) (.cse0 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 0))) (and (= (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24) (+ .cse0 29629528)) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (<= .cse1 32) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_415| Int)) (= (select |#valid| |v___CPROVER_overflow_mult_~#c~1.base_415|) 0)) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_ensure_allocated_hash_table_#t~mem549#1|) (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|)) (< 0 |#StackHeapBarrier|))) [2022-11-16 11:48:57,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,380 INFO L899 garLoopResultBuilder]: For program point L6812-1(line 6812) no Hoare annotation was computed. [2022-11-16 11:48:57,380 INFO L895 garLoopResultBuilder]: At program point L6812(line 6812) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (<= .cse0 32) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (let ((.cse1 (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 0)) (.cse2 (= .cse0 0))) (or (and .cse1 .cse2) (and (or (and .cse1 (not (= |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 1))) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 1)) (not .cse2)))) (< 0 |#StackHeapBarrier|))) [2022-11-16 11:48:57,381 INFO L899 garLoopResultBuilder]: For program point L7196(lines 7196 7200) no Hoare annotation was computed. [2022-11-16 11:48:57,381 INFO L899 garLoopResultBuilder]: For program point L7267(lines 7267 7272) no Hoare annotation was computed. [2022-11-16 11:48:57,381 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:48:57,381 INFO L899 garLoopResultBuilder]: For program point L6809(lines 6809 6819) no Hoare annotation was computed. [2022-11-16 11:48:57,381 INFO L895 garLoopResultBuilder]: At program point L10125(line 10125) the Hoare annotation is: false [2022-11-16 11:48:57,381 INFO L895 garLoopResultBuilder]: At program point L10125-1(line 10125) the Hoare annotation is: false [2022-11-16 11:48:57,382 INFO L899 garLoopResultBuilder]: For program point L10125-2(line 10125) no Hoare annotation was computed. [2022-11-16 11:48:57,382 INFO L895 garLoopResultBuilder]: At program point L7198(line 7198) the Hoare annotation is: false [2022-11-16 11:48:57,382 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.offset| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_begin_harness_~#map~0#1.base|) (= 32 |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1|) (< 0 |#StackHeapBarrier|)) [2022-11-16 11:48:57,382 INFO L899 garLoopResultBuilder]: For program point L7198-1(line 7198) no Hoare annotation was computed. [2022-11-16 11:48:57,383 INFO L899 garLoopResultBuilder]: For program point L6810-1(line 6810) no Hoare annotation was computed. [2022-11-16 11:48:57,383 INFO L902 garLoopResultBuilder]: At program point L10130(line 10130) the Hoare annotation is: true [2022-11-16 11:48:57,383 INFO L895 garLoopResultBuilder]: At program point L10126-2(line 10126) the Hoare annotation is: false [2022-11-16 11:48:57,383 INFO L899 garLoopResultBuilder]: For program point L10126-3(line 10126) no Hoare annotation was computed. [2022-11-16 11:48:57,383 INFO L899 garLoopResultBuilder]: For program point L7277-1(line 7277) no Hoare annotation was computed. [2022-11-16 11:48:57,383 INFO L899 garLoopResultBuilder]: For program point L10126(line 10126) no Hoare annotation was computed. [2022-11-16 11:48:57,383 INFO L895 garLoopResultBuilder]: At program point L7277(line 7277) the Hoare annotation is: false [2022-11-16 11:48:57,384 INFO L895 garLoopResultBuilder]: At program point L10118-1(line 10118) the Hoare annotation is: false [2022-11-16 11:48:57,384 INFO L899 garLoopResultBuilder]: For program point L10118-2(line 10118) no Hoare annotation was computed. [2022-11-16 11:48:57,384 INFO L899 garLoopResultBuilder]: For program point L10114(lines 10114 10129) no Hoare annotation was computed. [2022-11-16 11:48:57,384 INFO L895 garLoopResultBuilder]: At program point L10118(line 10118) the Hoare annotation is: false [2022-11-16 11:48:57,384 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-16 11:48:57,384 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-16 11:48:57,385 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-16 11:48:57,385 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-16 11:48:57,385 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-16 11:48:57,385 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-16 11:48:57,392 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 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] [2022-11-16 11:48:57,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:48:57,419 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,423 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,425 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] [2022-11-16 11:48:57,427 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] [2022-11-16 11:48:57,427 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,428 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,428 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] [2022-11-16 11:48:57,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,443 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,443 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,443 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,443 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,444 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] [2022-11-16 11:48:57,444 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,444 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] [2022-11-16 11:48:57,445 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,445 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,445 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,445 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] [2022-11-16 11:48:57,445 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,455 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,457 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,457 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,458 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] [2022-11-16 11:48:57,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,460 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] [2022-11-16 11:48:57,460 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,460 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,461 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] [2022-11-16 11:48:57,461 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,461 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,471 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,471 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,471 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,472 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,472 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,472 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,473 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] [2022-11-16 11:48:57,473 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,473 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,473 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,474 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,474 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] [2022-11-16 11:48:57,476 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,477 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] [2022-11-16 11:48:57,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:48:57 BoogieIcfgContainer [2022-11-16 11:48:57,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:48:57,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:48:57,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:48:57,480 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:48:57,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:31" (3/4) ... [2022-11-16 11:48:57,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:48:57,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-16 11:48:57,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_begin [2022-11-16 11:48:57,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2022-11-16 11:48:57,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure s_get_next_element [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2022-11-16 11:48:57,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2022-11-16 11:48:57,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2022-11-16 11:48:57,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_is_valid [2022-11-16 11:48:57,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2022-11-16 11:48:57,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2022-11-16 11:48:57,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-16 11:48:57,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-16 11:48:57,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2022-11-16 11:48:57,509 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 169 nodes and edges [2022-11-16 11:48:57,518 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2022-11-16 11:48:57,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-16 11:48:57,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 11:48:57,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:48:57,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:48:57,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:48:57,525 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:48:57,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result + 1 <= 0 && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (tl_last_error == \old(tl_last_error) && \result == 0))) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || ((((((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v_ArrVal_7027 : [int]int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := v_ArrVal_7027])) && (\exists v_ArrVal_7029 : [int]int :: \old(#memory_$Pointer$)[r := v_ArrVal_7029] == #memory_$Pointer$)) && r == r) && \old(a) == a) && \old(b) == b) && (\exists v_ArrVal_7028 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_7028])) && (\exists v___CPROVER_overflow_plus_~#c~0.base_86 : int :: \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86] == 0 && \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86 := 0] == \valid)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (tl_last_error == \old(tl_last_error) && \result == 0))) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-16 11:48:57,557 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result + 1 <= 0 && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || tl_last_error == \old(tl_last_error))) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((((((((\old(b) == b && unknown-#memory_int-unknown[r][r] == \old(b) + \old(a)) && r == r) && r == r) && (\exists v_ArrVal_5488 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5488])) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || tl_last_error == \old(tl_last_error))) && (\exists v_ArrVal_7032 : [int]int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := v_ArrVal_7032])) && (\exists v_ArrVal_5487 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5487])) && (\exists v___CPROVER_overflow_plus_~#c~0.base_86 : int :: \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86] == 0 && \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86 := 0] == \valid)) && \old(a) == a) [2022-11-16 11:48:57,971 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:48:57,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:48:57,972 INFO L158 Benchmark]: Toolchain (without parser) took 812296.96ms. Allocated memory was 148.9MB in the beginning and 992.0MB in the end (delta: 843.1MB). Free memory was 101.6MB in the beginning and 822.1MB in the end (delta: -720.5MB). Peak memory consumption was 637.3MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,972 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory was 128.4MB in the beginning and 128.3MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:48:57,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3557.27ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 101.4MB in the beginning and 118.8MB in the end (delta: -17.4MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 202.38ms. Allocated memory is still 197.1MB. Free memory was 118.8MB in the beginning and 108.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,973 INFO L158 Benchmark]: Boogie Preprocessor took 105.26ms. Allocated memory is still 197.1MB. Free memory was 108.3MB in the beginning and 101.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,973 INFO L158 Benchmark]: RCFGBuilder took 1707.57ms. Allocated memory is still 197.1MB. Free memory was 101.0MB in the beginning and 105.9MB in the end (delta: -4.9MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,973 INFO L158 Benchmark]: TraceAbstraction took 806225.91ms. Allocated memory was 197.1MB in the beginning and 992.0MB in the end (delta: 794.8MB). Free memory was 104.9MB in the beginning and 367.5MB in the end (delta: -262.6MB). Peak memory consumption was 533.2MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,974 INFO L158 Benchmark]: Witness Printer took 492.11ms. Allocated memory is still 992.0MB. Free memory was 367.5MB in the beginning and 822.1MB in the end (delta: -454.7MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-11-16 11:48:57,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory was 128.4MB in the beginning and 128.3MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3557.27ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 101.4MB in the beginning and 118.8MB in the end (delta: -17.4MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 202.38ms. Allocated memory is still 197.1MB. Free memory was 118.8MB in the beginning and 108.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.26ms. Allocated memory is still 197.1MB. Free memory was 108.3MB in the beginning and 101.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1707.57ms. Allocated memory is still 197.1MB. Free memory was 101.0MB in the beginning and 105.9MB in the end (delta: -4.9MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * TraceAbstraction took 806225.91ms. Allocated memory was 197.1MB in the beginning and 992.0MB in the end (delta: 794.8MB). Free memory was 104.9MB in the beginning and 367.5MB in the end (delta: -262.6MB). Peak memory consumption was 533.2MB. Max. memory is 16.1GB. * Witness Printer took 492.11ms. Allocated memory is still 992.0MB. Free memory was 367.5MB in the beginning and 822.1MB in the end (delta: -454.7MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 806.1s, OverallIterations: 32, TraceHistogramMax: 36, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 221.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3260 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3193 mSDsluCounter, 42062 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8035 IncrementalHoareTripleChecker+Unchecked, 36333 mSDsCounter, 1248 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11947 IncrementalHoareTripleChecker+Invalid, 21230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1248 mSolverCounterUnsat, 5729 mSDtfsCounter, 11947 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9463 GetRequests, 8509 SyntacticMatches, 68 SemanticMatches, 886 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 11270 ImplicationChecksByTransitivity, 453.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=367occurred in iteration=29, InterpolantAutomatonStates: 597, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 32 MinimizatonAttempts, 162 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 1364 PreInvPairs, 1465 NumberOfFragments, 1097 HoareAnnotationTreeSize, 1364 FomulaSimplifications, 931 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 63 FomulaSimplificationsInter, 1391 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.8s SsaConstructionTime, 246.0s SatisfiabilityAnalysisTime, 312.9s InterpolantComputationTime, 8664 NumberOfCodeBlocks, 8584 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 10058 ConstructedInterpolants, 571 QuantifiedInterpolants, 42284 SizeOfPredicates, 444 NumberOfNonLiveVariables, 87452 ConjunctsInSsa, 2378 ConjunctsInUnsatCore, 48 InterpolantComputations, 23 PerfectInterpolantSequences, 12094/12913 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9824]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9796]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2497]: Loop Invariant [2022-11-16 11:48:57,988 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,988 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,988 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,989 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,989 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] [2022-11-16 11:48:57,989 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,989 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] [2022-11-16 11:48:57,990 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,990 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,990 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,990 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] [2022-11-16 11:48:57,990 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,991 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,991 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,991 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,991 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,992 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,993 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,993 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,993 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,993 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,994 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7027,QUANTIFIED] [2022-11-16 11:48:57,994 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,994 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7029,QUANTIFIED] [2022-11-16 11:48:57,994 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,995 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,995 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,995 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7028,QUANTIFIED] [2022-11-16 11:48:57,995 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:57,996 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,996 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,996 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,996 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((\result + 1 <= 0 && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (tl_last_error == \old(tl_last_error) && \result == 0))) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || ((((((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v_ArrVal_7027 : [int]int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := v_ArrVal_7027])) && (\exists v_ArrVal_7029 : [int]int :: \old(#memory_$Pointer$)[r := v_ArrVal_7029] == #memory_$Pointer$)) && r == r) && \old(a) == a) && \old(b) == b) && (\exists v_ArrVal_7028 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_7028])) && (\exists v___CPROVER_overflow_plus_~#c~0.base_86 : int :: \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86] == 0 && \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86 := 0] == \valid)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (tl_last_error == \old(tl_last_error) && \result == 0))) && r == r) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 2541]: Loop Invariant [2022-11-16 11:48:57,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:57,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:57,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] [2022-11-16 11:48:57,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,000 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,000 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,000 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,000 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] [2022-11-16 11:48:58,000 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,001 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] [2022-11-16 11:48:58,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:58,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:58,002 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,002 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,004 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5488,QUANTIFIED] [2022-11-16 11:48:58,004 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,004 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,004 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,004 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 11:48:58,005 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_7032,QUANTIFIED] [2022-11-16 11:48:58,005 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,005 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 11:48:58,005 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5487,QUANTIFIED] [2022-11-16 11:48:58,005 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] [2022-11-16 11:48:58,006 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_plus_~#c~0.base_86,QUANTIFIED] Derived loop invariant: ((\result + 1 <= 0 && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || tl_last_error == \old(tl_last_error))) || !(0 < unknown-#StackHeapBarrier-unknown)) || (((((((((\old(b) == b && unknown-#memory_int-unknown[r][r] == \old(b) + \old(a)) && r == r) && r == r) && (\exists v_ArrVal_5488 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5488])) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || tl_last_error == \old(tl_last_error))) && (\exists v_ArrVal_7032 : [int]int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := v_ArrVal_7032])) && (\exists v_ArrVal_5487 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5487])) && (\exists v___CPROVER_overflow_plus_~#c~0.base_86 : int :: \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86] == 0 && \old(\valid)[v___CPROVER_overflow_plus_~#c~0.base_86 := 0] == \valid)) && \old(a) == a) - InvariantResult [Line: 9821]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-16 11:48:58,225 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-16 11:48:58,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_325c1ff9-f4df-4fd9-99e5-cf6b739a1db3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE