./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/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_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/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_e8941a67-3981-4fbb-892d-ace35a9e7e24/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- 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 10:57:39,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:57:39,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:57:39,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:57:39,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:57:39,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:57:39,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:57:39,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:57:39,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:57:39,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:57:39,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:57:39,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:57:39,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:57:39,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:57:39,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:57:39,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:57:39,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:57:39,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:57:39,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:57:39,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:57:39,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:57:39,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:57:39,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:57:39,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:57:39,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:57:39,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:57:39,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:57:39,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:57:39,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:57:39,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:57:39,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:57:39,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:57:39,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:57:39,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:57:39,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:57:39,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:57:39,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:57:39,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:57:39,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:57:39,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:57:39,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:57:39,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 10:57:39,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:57:39,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:57:39,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:57:39,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:57:39,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:57:39,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:57:39,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:57:39,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:57:39,135 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:57:39,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:57:39,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:57:39,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:57:39,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:57:39,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:57:39,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:57:39,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:57:39,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:57:39,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:57:39,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:57:39,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:57:39,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:57:39,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:39,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:57:39,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:57:39,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:57:39,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:57:39,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:57:39,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:57:39,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:57:39,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:57:39,140 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_e8941a67-3981-4fbb-892d-ace35a9e7e24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2022-11-16 10:57:39,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:57:39,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:57:39,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:57:39,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:57:39,477 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:57:39,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2022-11-16 10:57:39,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/data/d63e94964/0666ddf92ac94690b85693a1927a8c96/FLAG3c29c0a6a [2022-11-16 10:57:40,492 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:57:40,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2022-11-16 10:57:40,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/data/d63e94964/0666ddf92ac94690b85693a1927a8c96/FLAG3c29c0a6a [2022-11-16 10:57:40,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/data/d63e94964/0666ddf92ac94690b85693a1927a8c96 [2022-11-16 10:57:40,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:57:40,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:57:40,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:40,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:57:40,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:57:40,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156277f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40, skipping insertion in model container [2022-11-16 10:57:40,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:57:41,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:57:41,349 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_e8941a67-3981-4fbb-892d-ace35a9e7e24/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2022-11-16 10:57:41,355 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_e8941a67-3981-4fbb-892d-ace35a9e7e24/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2022-11-16 10:57:42,380 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:57:42,476 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,477 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,477 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,478 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,482 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,496 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,497 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,499 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,499 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,501 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,502 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,502 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,503 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:42,846 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:57:42,847 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:57:42,848 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:57:42,849 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:57:42,850 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:57:42,851 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:57:42,851 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:57:42,852 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:57:42,853 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:57:42,853 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:57:42,989 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,000 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:43,103 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:57:43,117 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_e8941a67-3981-4fbb-892d-ace35a9e7e24/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2022-11-16 10:57:43,117 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_e8941a67-3981-4fbb-892d-ace35a9e7e24/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2022-11-16 10:57:43,169 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:57:43,187 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,188 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,188 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,189 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,190 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,198 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,199 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,200 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,201 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,202 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,203 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,203 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,203 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,258 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:57:43,259 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:57:43,259 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:57:43,262 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:57:43,263 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:57:43,264 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:57:43,265 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:57:43,266 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:57:43,266 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:57:43,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:57:43,319 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,336 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:57:43,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:43,588 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:57:43,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43 WrapperNode [2022-11-16 10:57:43,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:43,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:43,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:57:43,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:57:43,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,765 INFO L138 Inliner]: procedures = 690, calls = 1715, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 681 [2022-11-16 10:57:43,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:43,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:57:43,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:57:43,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:57:43,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,865 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:57:43,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:57:43,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:57:43,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:57:43,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (1/1) ... [2022-11-16 10:57:43,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:43,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:43,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:57:43,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:57:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:57:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-16 10:57:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-16 10:57:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-16 10:57:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-16 10:57:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 10:57:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 10:57:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:57:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 10:57:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 10:57:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 10:57:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 10:57:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:57:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:57:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-16 10:57:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-16 10:57:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:57:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:57:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:57:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 10:57:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 10:57:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 10:57:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 10:57:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 10:57:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 10:57:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 10:57:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 10:57:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:57:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:57:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 10:57:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 10:57:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 10:57:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 10:57:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 10:57:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:57:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2022-11-16 10:57:43,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2022-11-16 10:57:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-16 10:57:43,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-16 10:57:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:57:44,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:57:44,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:57:46,233 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:57:46,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:57:46,252 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:57:46,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:46 BoogieIcfgContainer [2022-11-16 10:57:46,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:57:46,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:57:46,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:57:46,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:57:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:57:40" (1/3) ... [2022-11-16 10:57:46,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a2536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:46, skipping insertion in model container [2022-11-16 10:57:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:43" (2/3) ... [2022-11-16 10:57:46,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a2536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:46, skipping insertion in model container [2022-11-16 10:57:46,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:46" (3/3) ... [2022-11-16 10:57:46,265 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2022-11-16 10:57:46,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:57:46,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:57:46,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:57:46,381 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;@6b17bdd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:57:46,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:57:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-16 10:57:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 10:57:46,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:46,419 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:46,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:46,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:46,429 INFO L85 PathProgramCache]: Analyzing trace with hash -853348587, now seen corresponding path program 1 times [2022-11-16 10:57:46,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:46,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531633966] [2022-11-16 10:57:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:46,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:57:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 10:57:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 10:57:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 10:57:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 10:57:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 10:57:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 10:57:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:57:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 10:57:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 10:57:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 10:57:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 10:57:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:57:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 10:57:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 10:57:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 10:57:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 10:57:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 10:57:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 10:57:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 10:57:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 10:57:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 10:57:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 10:57:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 10:57:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 10:57:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 10:57:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-16 10:57:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 10:57:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-11-16 10:57:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:47,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531633966] [2022-11-16 10:57:47,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531633966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:47,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:47,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:47,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137574834] [2022-11-16 10:57:47,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:47,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:57:47,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:47,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:57:47,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:47,721 INFO L87 Difference]: Start difference. First operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 10:57:49,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:49,223 INFO L93 Difference]: Finished difference Result 332 states and 486 transitions. [2022-11-16 10:57:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:57:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 174 [2022-11-16 10:57:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:49,236 INFO L225 Difference]: With dead ends: 332 [2022-11-16 10:57:49,236 INFO L226 Difference]: Without dead ends: 171 [2022-11-16 10:57:49,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:49,244 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 76 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:49,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 240 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 10:57:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-16 10:57:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 155. [2022-11-16 10:57:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 89 states have internal predecessors, (101), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-16 10:57:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2022-11-16 10:57:49,304 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 204 transitions. Word has length 174 [2022-11-16 10:57:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:49,305 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 204 transitions. [2022-11-16 10:57:49,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 10:57:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 204 transitions. [2022-11-16 10:57:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 10:57:49,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:49,311 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:49,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:57:49,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:49,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash 179931383, now seen corresponding path program 1 times [2022-11-16 10:57:49,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:49,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760695610] [2022-11-16 10:57:49,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:49,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:57:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 10:57:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 10:57:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 10:57:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 10:57:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 10:57:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 10:57:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:57:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 10:57:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 10:57:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 10:57:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 10:57:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:57:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 10:57:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 10:57:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 10:57:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 10:57:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 10:57:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 10:57:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 10:57:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 10:57:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 10:57:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 10:57:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 10:57:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 10:57:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 10:57:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-16 10:57:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 10:57:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-11-16 10:57:50,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760695610] [2022-11-16 10:57:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760695610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:57:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040961562] [2022-11-16 10:57:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:50,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:50,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:50,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:57:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:50,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 2619 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:57:50,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-11-16 10:57:51,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:57:51,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040961562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:51,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:57:51,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-16 10:57:51,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674921933] [2022-11-16 10:57:51,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:51,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:51,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:51,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-16 10:57:51,116 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:57:53,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 10:57:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:53,778 INFO L93 Difference]: Finished difference Result 305 states and 406 transitions. [2022-11-16 10:57:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:53,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 174 [2022-11-16 10:57:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:53,782 INFO L225 Difference]: With dead ends: 305 [2022-11-16 10:57:53,782 INFO L226 Difference]: Without dead ends: 157 [2022-11-16 10:57:53,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-16 10:57:53,784 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 194 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:53,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 559 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 10:57:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-16 10:57:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-16 10:57:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.146067415730337) internal successors, (102), 91 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2022-11-16 10:57:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 211 transitions. [2022-11-16 10:57:53,831 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 211 transitions. Word has length 174 [2022-11-16 10:57:53,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:53,833 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 211 transitions. [2022-11-16 10:57:53,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:57:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 211 transitions. [2022-11-16 10:57:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-16 10:57:53,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:53,842 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:53,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 10:57:54,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:54,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:54,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash 432837413, now seen corresponding path program 1 times [2022-11-16 10:57:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:54,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006220634] [2022-11-16 10:57:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:54,151 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:57:54,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877783766] [2022-11-16 10:57:54,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:54,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:54,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:57:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:54,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:57:54,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-16 10:57:54,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:57:54,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:54,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006220634] [2022-11-16 10:57:54,904 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:57:54,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877783766] [2022-11-16 10:57:54,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877783766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:54,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:54,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64267086] [2022-11-16 10:57:54,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:54,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:54,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:54,907 INFO L87 Difference]: Start difference. First operand 157 states and 211 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:57:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:56,373 INFO L93 Difference]: Finished difference Result 270 states and 364 transitions. [2022-11-16 10:57:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 189 [2022-11-16 10:57:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:56,378 INFO L225 Difference]: With dead ends: 270 [2022-11-16 10:57:56,378 INFO L226 Difference]: Without dead ends: 157 [2022-11-16 10:57:56,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 10:57:56,380 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 192 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:56,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 559 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 10:57:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-16 10:57:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-16 10:57:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.146067415730337) internal successors, (102), 91 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2022-11-16 10:57:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 209 transitions. [2022-11-16 10:57:56,405 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 209 transitions. Word has length 189 [2022-11-16 10:57:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:56,405 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 209 transitions. [2022-11-16 10:57:56,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:57:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 209 transitions. [2022-11-16 10:57:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-16 10:57:56,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:56,409 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:56,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:57:56,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:56,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:56,628 INFO L85 PathProgramCache]: Analyzing trace with hash 229772645, now seen corresponding path program 2 times [2022-11-16 10:57:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198559218] [2022-11-16 10:57:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:56,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:57:56,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324747561] [2022-11-16 10:57:56,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:57:56,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:56,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:56,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:57:58,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 10:57:58,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:57:58,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 10:57:58,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-16 10:57:58,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:57:58,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:58,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198559218] [2022-11-16 10:57:58,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:57:58,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324747561] [2022-11-16 10:57:58,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324747561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:58,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:58,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:57:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010059127] [2022-11-16 10:57:58,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:58,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:57:58,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:57:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:57:58,934 INFO L87 Difference]: Start difference. First operand 157 states and 209 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:58:00,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 10:58:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:01,391 INFO L93 Difference]: Finished difference Result 239 states and 315 transitions. [2022-11-16 10:58:01,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:58:01,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 204 [2022-11-16 10:58:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:01,394 INFO L225 Difference]: With dead ends: 239 [2022-11-16 10:58:01,394 INFO L226 Difference]: Without dead ends: 157 [2022-11-16 10:58:01,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 10:58:01,396 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 190 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:01,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 683 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 10:58:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-16 10:58:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-16 10:58:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.146067415730337) internal successors, (102), 91 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2022-11-16 10:58:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 207 transitions. [2022-11-16 10:58:01,413 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 207 transitions. Word has length 204 [2022-11-16 10:58:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:01,414 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 207 transitions. [2022-11-16 10:58:01,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 10:58:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 207 transitions. [2022-11-16 10:58:01,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-16 10:58:01,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:01,418 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:01,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:01,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:01,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:58:01,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1913799685, now seen corresponding path program 3 times [2022-11-16 10:58:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:01,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939582257] [2022-11-16 10:58:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:01,756 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:01,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580191895] [2022-11-16 10:58:01,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 10:58:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:01,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:01,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:01,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 10:58:05,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 10:58:05,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:58:05,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 10:58:05,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2022-11-16 10:58:05,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939582257] [2022-11-16 10:58:05,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:58:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580191895] [2022-11-16 10:58:05,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580191895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:05,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:05,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:58:05,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204367622] [2022-11-16 10:58:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:05,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:58:05,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:58:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:58:05,295 INFO L87 Difference]: Start difference. First operand 157 states and 207 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-16 10:58:06,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:06,152 INFO L93 Difference]: Finished difference Result 232 states and 303 transitions. [2022-11-16 10:58:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:58:06,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 234 [2022-11-16 10:58:06,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:06,155 INFO L225 Difference]: With dead ends: 232 [2022-11-16 10:58:06,155 INFO L226 Difference]: Without dead ends: 157 [2022-11-16 10:58:06,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 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 10:58:06,156 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 2 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:06,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 877 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 10:58:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-16 10:58:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-16 10:58:06,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.146067415730337) internal successors, (102), 91 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2022-11-16 10:58:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 206 transitions. [2022-11-16 10:58:06,182 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 206 transitions. Word has length 234 [2022-11-16 10:58:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:06,183 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 206 transitions. [2022-11-16 10:58:06,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-16 10:58:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 206 transitions. [2022-11-16 10:58:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-16 10:58:06,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:06,188 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:06,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:06,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:06,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:58:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1463432363, now seen corresponding path program 1 times [2022-11-16 10:58:06,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:06,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246912422] [2022-11-16 10:58:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:06,544 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:06,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464679527] [2022-11-16 10:58:06,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:06,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:06,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:06,547 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:06,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8941a67-3981-4fbb-892d-ace35a9e7e24/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 10:59:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:07,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 403 conjunts are in the unsatisfiable core [2022-11-16 10:59:07,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:59:07,402 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 10:59:07,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-16 10:59:08,057 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 10:59:08,565 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 10:59:08,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 37 treesize of output 53 [2022-11-16 10:59:09,644 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 19 treesize of output 21 [2022-11-16 10:59:12,493 INFO L321 Elim1Store]: treesize reduction 296, result has 31.3 percent of original size [2022-11-16 10:59:12,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 161 treesize of output 308 [2022-11-16 10:59:12,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:12,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:12,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 172 [2022-11-16 10:59:16,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:16,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:16,670 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-16 10:59:16,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 92 treesize of output 103 [2022-11-16 10:59:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:16,818 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 43 treesize of output 33 [2022-11-16 10:59:16,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:16,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:16,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 10:59:17,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:17,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:17,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 79 [2022-11-16 10:59:17,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:17,514 INFO L321 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2022-11-16 10:59:17,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 103 [2022-11-16 10:59:17,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:59:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:18,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:18,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 76 [2022-11-16 10:59:18,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:59:18,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 79 [2022-11-16 10:59:18,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:18,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:59:18,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 79 [2022-11-16 10:59:18,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:19,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:59:19,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 79 [2022-11-16 10:59:19,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:21,570 INFO L321 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2022-11-16 10:59:21,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 103 [2022-11-16 10:59:25,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:59:25,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:25,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 51 [2022-11-16 10:59:32,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:32,549 INFO L217 Elim1Store]: Index analysis took 1119 ms [2022-11-16 10:59:32,550 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 43 treesize of output 33 [2022-11-16 10:59:32,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 10:59:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:33,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 79 [2022-11-16 10:59:33,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:37,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:59:39,971 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimArr_4 v_prenex_2) (select v_arrayElimArr_4 |ULTIMATE.start_aws_array_list_swap_contents_harness_~#to~0#1.base|)) [2022-11-16 10:59:40,379 INFO L321 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2022-11-16 10:59:40,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 69 [2022-11-16 10:59:40,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 10:59:40,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2022-11-16 11:00:23,647 WARN L233 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 522 DAG size of output: 214 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 11:00:23,648 INFO L321 Elim1Store]: treesize reduction 2079, result has 19.1 percent of original size [2022-11-16 11:00:23,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 79 case distinctions, treesize of input 482 treesize of output 1238