./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash efb3bc3d53d5de978717fadeb26804aec5f97721ade955fc2d1463ef24ff6010 --- 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-38b53e6 [2022-11-25 23:18:54,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:18:54,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:18:54,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:18:54,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:18:54,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:18:54,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:18:54,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:18:54,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:18:54,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:18:54,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:18:54,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:18:54,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:18:54,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:18:54,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:18:54,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:18:54,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:18:54,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:18:54,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:18:54,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:18:54,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:18:54,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:18:54,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:18:54,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:18:54,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:18:54,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:18:54,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:18:54,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:18:54,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:18:54,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:18:54,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:18:54,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:18:54,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:18:54,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:18:54,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:18:54,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:18:54,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:18:54,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:18:54,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:18:54,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:18:54,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:18:54,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:18:54,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:18:54,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:18:54,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:18:54,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:18:54,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:18:54,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:18:54,330 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:18:54,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:18:54,330 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:18:54,331 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:18:54,332 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:18:54,333 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:18:54,333 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:18:54,333 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:18:54,334 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:18:54,334 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:18:54,334 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:18:54,335 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:18:54,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:18:54,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:18:54,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:18:54,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:18:54,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:18:54,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:18:54,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:18:54,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:18:54,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:18:54,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:18:54,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:18:54,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:18:54,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:18:54,341 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:18:54,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:18:54,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:18:54,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:18:54,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:18:54,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:18:54,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:18:54,344 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_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efb3bc3d53d5de978717fadeb26804aec5f97721ade955fc2d1463ef24ff6010 [2022-11-25 23:18:54,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:18:54,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:18:54,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:18:54,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:18:54,743 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:18:54,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2022-11-25 23:18:57,967 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:18:58,568 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:18:58,571 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2022-11-25 23:18:58,609 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/data/963e7f8de/21040bbcc8a7482f8d49f8acdf65b567/FLAGeb01a7746 [2022-11-25 23:18:58,632 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/data/963e7f8de/21040bbcc8a7482f8d49f8acdf65b567 [2022-11-25 23:18:58,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:18:58,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:18:58,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:18:58,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:18:58,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:18:58,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:58" (1/1) ... [2022-11-25 23:18:58,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17fafee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:58, skipping insertion in model container [2022-11-25 23:18:58,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:58" (1/1) ... [2022-11-25 23:18:58,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:18:58,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:18:59,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2022-11-25 23:18:59,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2022-11-25 23:19:00,115 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:19:00,184 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:00,204 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:00,213 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,215 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,217 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,219 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,227 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:00,239 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,240 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,242 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,250 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:00,361 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:00,362 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:00,363 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:00,370 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:19:00,374 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:19:00,375 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:19:00,603 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:00,837 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:19:00,842 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:19:00,844 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:19:00,846 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:19:00,853 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:19:00,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:19:00,867 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:19:00,868 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:19:00,869 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:19:00,874 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:19:00,876 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:19:01,222 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,224 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,225 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,226 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,295 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,325 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:19:01,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:01,363 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:19:01,380 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4501,4514] [2022-11-25 23:19:01,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i[4561,4574] [2022-11-25 23:19:01,427 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:19:01,435 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,443 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,449 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,449 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,450 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,451 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,452 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,456 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,464 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,465 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,475 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:01,475 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:01,476 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:19:01,480 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:19:01,482 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:19:01,482 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:19:01,486 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,512 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:19:01,513 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:19:01,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:19:01,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:19:01,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:19:01,518 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:19:01,519 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:19:01,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:19:01,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:19:01,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:19:01,522 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:19:01,561 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,563 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,565 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,565 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:19:01,575 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 23:19:01,619 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:19:01,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:01,897 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:19:01,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01 WrapperNode [2022-11-25 23:19:01,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:01,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:01,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:19:01,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:19:01,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,118 INFO L138 Inliner]: procedures = 689, calls = 1496, calls flagged for inlining = 55, calls inlined = 9, statements flattened = 597 [2022-11-25 23:19:02,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:02,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:19:02,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:19:02,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:19:02,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,198 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:19:02,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:19:02,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:19:02,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:19:02,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (1/1) ... [2022-11-25 23:19:02,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:02,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:02,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:19:02,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:19:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 23:19:02,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 23:19:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:19:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 23:19:02,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 23:19:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 23:19:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 23:19:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 23:19:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 23:19:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:19:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 23:19:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 23:19:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:19:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:19:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:19:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:19:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:19:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:19:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:19:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2022-11-25 23:19:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2022-11-25 23:19:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 23:19:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 23:19:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 23:19:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 23:19:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 23:19:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 23:19:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-25 23:19:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-25 23:19:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:19:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:19:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:19:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:19:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:19:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 23:19:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 23:19:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 23:19:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 23:19:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:19:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-25 23:19:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-25 23:19:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-25 23:19:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-25 23:19:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 23:19:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 23:19:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:19:02,757 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:19:02,760 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:19:04,096 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:19:04,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:19:04,446 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:19:04,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:04 BoogieIcfgContainer [2022-11-25 23:19:04,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:19:04,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:19:04,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:19:04,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:19:04,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:18:58" (1/3) ... [2022-11-25 23:19:04,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401b565b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:04, skipping insertion in model container [2022-11-25 23:19:04,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:01" (2/3) ... [2022-11-25 23:19:04,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401b565b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:04, skipping insertion in model container [2022-11-25 23:19:04,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:04" (3/3) ... [2022-11-25 23:19:04,466 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness.i [2022-11-25 23:19:04,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:19:04,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:19:04,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:19:04,592 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=FINITE_AUTOMATA, 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;@12d5e294, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:19:04,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:19:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-25 23:19:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:19:04,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:04,622 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:04,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2066889203, now seen corresponding path program 1 times [2022-11-25 23:19:04,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:04,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485419165] [2022-11-25 23:19:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:19:05,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:05,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485419165] [2022-11-25 23:19:05,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485419165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:05,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:05,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:19:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503806851] [2022-11-25 23:19:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:05,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:19:05,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:05,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:19:05,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:19:05,543 INFO L87 Difference]: Start difference. First operand has 126 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:19:05,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:05,919 INFO L93 Difference]: Finished difference Result 199 states and 255 transitions. [2022-11-25 23:19:05,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:19:05,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-11-25 23:19:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:05,940 INFO L225 Difference]: With dead ends: 199 [2022-11-25 23:19:05,940 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 23:19:05,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:19:05,955 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:05,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:19:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 23:19:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-25 23:19:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 73 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-25 23:19:06,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2022-11-25 23:19:06,050 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 82 [2022-11-25 23:19:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:06,055 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2022-11-25 23:19:06,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:19:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2022-11-25 23:19:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 23:19:06,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:06,067 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:06,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:19:06,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1062802869, now seen corresponding path program 1 times [2022-11-25 23:19:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944932589] [2022-11-25 23:19:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-25 23:19:06,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:06,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944932589] [2022-11-25 23:19:06,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944932589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:06,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:06,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:19:06,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844531778] [2022-11-25 23:19:06,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:06,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:19:06,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:06,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:19:06,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:19:06,875 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 23:19:07,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:07,378 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2022-11-25 23:19:07,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:19:07,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 95 [2022-11-25 23:19:07,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:07,381 INFO L225 Difference]: With dead ends: 200 [2022-11-25 23:19:07,382 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 23:19:07,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:19:07,384 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:07,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 463 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:19:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 23:19:07,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-25 23:19:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 73 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-25 23:19:07,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2022-11-25 23:19:07,401 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 95 [2022-11-25 23:19:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:07,402 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2022-11-25 23:19:07,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 23:19:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2022-11-25 23:19:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 23:19:07,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:07,407 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:07,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:19:07,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:07,408 INFO L85 PathProgramCache]: Analyzing trace with hash 405473573, now seen corresponding path program 1 times [2022-11-25 23:19:07,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:07,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267499495] [2022-11-25 23:19:07,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:07,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-25 23:19:08,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:08,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267499495] [2022-11-25 23:19:08,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267499495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:08,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:08,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:19:08,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874700037] [2022-11-25 23:19:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:08,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:19:08,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:08,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:19:08,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:19:08,322 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 23:19:08,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:08,926 INFO L93 Difference]: Finished difference Result 211 states and 265 transitions. [2022-11-25 23:19:08,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:19:08,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 103 [2022-11-25 23:19:08,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:08,930 INFO L225 Difference]: With dead ends: 211 [2022-11-25 23:19:08,931 INFO L226 Difference]: Without dead ends: 126 [2022-11-25 23:19:08,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:19:08,932 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:08,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 700 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:19:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-25 23:19:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-25 23:19:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 75 states have internal predecessors, (86), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-11-25 23:19:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 157 transitions. [2022-11-25 23:19:08,949 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 157 transitions. Word has length 103 [2022-11-25 23:19:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:08,949 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 157 transitions. [2022-11-25 23:19:08,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 23:19:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 157 transitions. [2022-11-25 23:19:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:19:08,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:08,952 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:08,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:19:08,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:08,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:08,953 INFO L85 PathProgramCache]: Analyzing trace with hash -281707963, now seen corresponding path program 1 times [2022-11-25 23:19:08,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:08,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87443680] [2022-11-25 23:19:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:08,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:09,048 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:09,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754730775] [2022-11-25 23:19:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:09,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:09,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:09,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:09,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:19:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:09,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 2391 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:19:09,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 23:19:09,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:09,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:09,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87443680] [2022-11-25 23:19:09,845 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:09,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754730775] [2022-11-25 23:19:09,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754730775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:09,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:09,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:19:09,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314544786] [2022-11-25 23:19:09,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:09,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:19:09,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:09,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:19:09,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:19:09,849 INFO L87 Difference]: Start difference. First operand 126 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 23:19:10,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:10,276 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2022-11-25 23:19:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:19:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 112 [2022-11-25 23:19:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:10,278 INFO L225 Difference]: With dead ends: 205 [2022-11-25 23:19:10,279 INFO L226 Difference]: Without dead ends: 126 [2022-11-25 23:19:10,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:19:10,281 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 28 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 560 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:19:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-25 23:19:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-25 23:19:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2022-11-25 23:19:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2022-11-25 23:19:10,294 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 112 [2022-11-25 23:19:10,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:10,294 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2022-11-25 23:19:10,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 23:19:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2022-11-25 23:19:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 23:19:10,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:10,296 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 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] [2022-11-25 23:19:10,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:10,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:10,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash -495825003, now seen corresponding path program 1 times [2022-11-25 23:19:10,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:10,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551902410] [2022-11-25 23:19:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:10,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:10,598 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:10,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057604853] [2022-11-25 23:19:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:10,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:10,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:10,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:10,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:19:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:11,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 2445 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:19:11,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-25 23:19:11,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:11,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:11,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551902410] [2022-11-25 23:19:11,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:11,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057604853] [2022-11-25 23:19:11,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057604853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:11,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:11,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:19:11,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061854293] [2022-11-25 23:19:11,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:11,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:19:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:19:11,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:19:11,394 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 23:19:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:12,160 INFO L93 Difference]: Finished difference Result 210 states and 259 transitions. [2022-11-25 23:19:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:19:12,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 120 [2022-11-25 23:19:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:12,163 INFO L225 Difference]: With dead ends: 210 [2022-11-25 23:19:12,163 INFO L226 Difference]: Without dead ends: 126 [2022-11-25 23:19:12,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:19:12,165 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 42 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:12,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 766 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:19:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-25 23:19:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-25 23:19:12,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 75 states have internal predecessors, (85), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2022-11-25 23:19:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 155 transitions. [2022-11-25 23:19:12,192 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 155 transitions. Word has length 120 [2022-11-25 23:19:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:12,194 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 155 transitions. [2022-11-25 23:19:12,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 23:19:12,194 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 155 transitions. [2022-11-25 23:19:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 23:19:12,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:12,201 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:12,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:12,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:12,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1435095651, now seen corresponding path program 1 times [2022-11-25 23:19:12,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:12,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490548769] [2022-11-25 23:19:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:12,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:12,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:12,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466823321] [2022-11-25 23:19:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:12,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:12,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:12,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:12,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:19:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:13,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 23:19:13,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-25 23:19:13,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-25 23:19:13,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:13,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490548769] [2022-11-25 23:19:13,578 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:13,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466823321] [2022-11-25 23:19:13,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466823321] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:13,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:19:13,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-25 23:19:13,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951621225] [2022-11-25 23:19:13,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:13,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:19:13,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:19:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:19:13,581 INFO L87 Difference]: Start difference. First operand 126 states and 155 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-25 23:19:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:14,054 INFO L93 Difference]: Finished difference Result 136 states and 169 transitions. [2022-11-25 23:19:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:19:14,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 129 [2022-11-25 23:19:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:14,056 INFO L225 Difference]: With dead ends: 136 [2022-11-25 23:19:14,056 INFO L226 Difference]: Without dead ends: 134 [2022-11-25 23:19:14,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:19:14,058 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 6 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:14,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 632 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:19:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-25 23:19:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 133. [2022-11-25 23:19:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 80 states have internal predecessors, (89), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-25 23:19:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 166 transitions. [2022-11-25 23:19:14,072 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 166 transitions. Word has length 129 [2022-11-25 23:19:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:14,073 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 166 transitions. [2022-11-25 23:19:14,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-25 23:19:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 166 transitions. [2022-11-25 23:19:14,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 23:19:14,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:14,081 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:14,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:14,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 23:19:14,292 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:14,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2054362933, now seen corresponding path program 1 times [2022-11-25 23:19:14,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:14,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593745329] [2022-11-25 23:19:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:14,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:14,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114566871] [2022-11-25 23:19:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:14,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:14,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:14,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:14,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:19:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:15,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 23:19:15,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-25 23:19:15,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:15,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:15,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593745329] [2022-11-25 23:19:15,132 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:15,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114566871] [2022-11-25 23:19:15,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114566871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:15,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:15,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:19:15,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986137597] [2022-11-25 23:19:15,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:15,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:19:15,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:19:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:19:15,135 INFO L87 Difference]: Start difference. First operand 133 states and 166 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 23:19:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:15,802 INFO L93 Difference]: Finished difference Result 217 states and 270 transitions. [2022-11-25 23:19:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:19:15,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 130 [2022-11-25 23:19:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:15,805 INFO L225 Difference]: With dead ends: 217 [2022-11-25 23:19:15,805 INFO L226 Difference]: Without dead ends: 133 [2022-11-25 23:19:15,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:19:15,807 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 8 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:15,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 619 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:19:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-25 23:19:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-25 23:19:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 80 states have internal predecessors, (88), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-25 23:19:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 165 transitions. [2022-11-25 23:19:15,821 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 165 transitions. Word has length 130 [2022-11-25 23:19:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:15,822 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 165 transitions. [2022-11-25 23:19:15,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 23:19:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 165 transitions. [2022-11-25 23:19:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 23:19:15,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:15,824 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:15,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:16,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 23:19:16,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:16,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:16,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1742512442, now seen corresponding path program 1 times [2022-11-25 23:19:16,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:16,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896745782] [2022-11-25 23:19:16,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:16,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:16,125 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:16,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012622388] [2022-11-25 23:19:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:16,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:16,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:16,127 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:16,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:19:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:16,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 23:19:16,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-25 23:19:16,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:16,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:16,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896745782] [2022-11-25 23:19:16,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:16,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012622388] [2022-11-25 23:19:16,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012622388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:16,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:16,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:19:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218311247] [2022-11-25 23:19:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:16,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:19:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:19:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:19:16,904 INFO L87 Difference]: Start difference. First operand 133 states and 165 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 23:19:17,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:17,665 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions. [2022-11-25 23:19:17,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:19:17,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 131 [2022-11-25 23:19:17,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:17,668 INFO L225 Difference]: With dead ends: 218 [2022-11-25 23:19:17,668 INFO L226 Difference]: Without dead ends: 134 [2022-11-25 23:19:17,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:19:17,669 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 10 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:17,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 619 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:19:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-25 23:19:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-25 23:19:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 77 states have (on average 1.155844155844156) internal successors, (89), 81 states have internal predecessors, (89), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-25 23:19:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2022-11-25 23:19:17,681 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 131 [2022-11-25 23:19:17,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:17,682 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2022-11-25 23:19:17,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 23:19:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2022-11-25 23:19:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 23:19:17,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:17,685 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:17,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:17,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:17,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:17,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash -942618343, now seen corresponding path program 1 times [2022-11-25 23:19:17,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:17,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500059211] [2022-11-25 23:19:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:17,986 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:17,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [720990328] [2022-11-25 23:19:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:17,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:17,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:17,989 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:18,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:19:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:18,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2606 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 23:19:18,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:19:18,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:18,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:18,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500059211] [2022-11-25 23:19:18,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:18,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720990328] [2022-11-25 23:19:18,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720990328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:18,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:18,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:19:18,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556320135] [2022-11-25 23:19:18,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:18,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:19:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:18,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:19:18,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:19:18,662 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:19:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:19,322 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2022-11-25 23:19:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:19:19,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-25 23:19:19,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:19,325 INFO L225 Difference]: With dead ends: 229 [2022-11-25 23:19:19,325 INFO L226 Difference]: Without dead ends: 138 [2022-11-25 23:19:19,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:19:19,327 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 5 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:19,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 360 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:19:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-25 23:19:19,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2022-11-25 23:19:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 82 states have internal predecessors, (90), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-25 23:19:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2022-11-25 23:19:19,339 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 167 transitions. Word has length 132 [2022-11-25 23:19:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:19,340 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-11-25 23:19:19,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:19:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 167 transitions. [2022-11-25 23:19:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-25 23:19:19,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:19,344 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:19,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:19,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:19,554 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1853719707, now seen corresponding path program 1 times [2022-11-25 23:19:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:19,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936981965] [2022-11-25 23:19:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:19,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:19,644 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:19,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251204259] [2022-11-25 23:19:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:19,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:19,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:19,646 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:19,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:19:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:20,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 2612 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:19:20,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 23:19:20,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:20,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936981965] [2022-11-25 23:19:20,558 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:20,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251204259] [2022-11-25 23:19:20,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251204259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:20,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:20,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:19:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592157388] [2022-11-25 23:19:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:19:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:19:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:19:20,562 INFO L87 Difference]: Start difference. First operand 135 states and 167 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:19:20,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:20,932 INFO L93 Difference]: Finished difference Result 223 states and 278 transitions. [2022-11-25 23:19:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:19:20,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2022-11-25 23:19:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:20,934 INFO L225 Difference]: With dead ends: 223 [2022-11-25 23:19:20,934 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 23:19:20,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:19:20,936 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 4 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:20,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 511 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:19:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 23:19:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2022-11-25 23:19:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 80 states have (on average 1.15) internal successors, (92), 83 states have internal predecessors, (92), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (41), 36 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-25 23:19:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2022-11-25 23:19:20,948 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 134 [2022-11-25 23:19:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:20,949 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2022-11-25 23:19:20,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 23:19:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2022-11-25 23:19:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 23:19:20,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:20,951 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:20,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:21,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:19:21,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash -774204074, now seen corresponding path program 1 times [2022-11-25 23:19:21,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:21,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032628597] [2022-11-25 23:19:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:21,278 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:21,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213053809] [2022-11-25 23:19:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:21,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:21,295 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:21,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ddb0dc-88e9-46a6-88d3-0ffb1722f75a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:19:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:22,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2616 conjuncts, 116 conjunts are in the unsatisfiable core [2022-11-25 23:19:22,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:22,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:19:22,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:19:22,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2022-11-25 23:19:25,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:25,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-25 23:19:28,174 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_916 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_916))) is different from true [2022-11-25 23:19:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 24 proven. 22 refuted. 3 times theorem prover too weak. 23 trivial. 2 not checked. [2022-11-25 23:19:28,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-25 23:19:30,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032628597] [2022-11-25 23:19:30,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213053809] [2022-11-25 23:19:30,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213053809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:19:30,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [310686900] [2022-11-25 23:19:30,161 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-25 23:19:30,161 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:30,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:30,172 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:30,172 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:34,190 INFO L217 Elim1Store]: Index analysis took 510 ms [2022-11-25 23:19:53,249 WARN L233 SmtUtils]: Spent 18.99s on a formula simplification. DAG size of input: 1758 DAG size of output: 1169 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:19:53,255 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-11-25 23:19:53,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19112 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 195 case distinctions, treesize of input 987 treesize of output 2346 [2022-11-25 23:19:57,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:57,823 INFO L217 Elim1Store]: Index analysis took 925 ms [2022-11-25 23:20:29,997 WARN L233 SmtUtils]: Spent 32.11s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:20:30,003 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-25 23:20:30,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-25 23:22:02,788 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 15 treesize of output 1 [2022-11-25 23:22:02,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:02,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-25 23:22:02,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:02,809 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 44 treesize of output 43 [2022-11-25 23:22:02,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:02,818 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 44 treesize of output 43 [2022-11-25 23:22:06,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:06,581 INFO L217 Elim1Store]: Index analysis took 167 ms [2022-11-25 23:22:06,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 23:22:07,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:07,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 23:22:08,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 23:22:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:08,945 INFO L217 Elim1Store]: Index analysis took 142 ms [2022-11-25 23:22:08,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 23:22:09,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:09,505 INFO L217 Elim1Store]: Index analysis took 123 ms [2022-11-25 23:22:09,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 362 [2022-11-25 23:22:18,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:18,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 23:22:19,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:19,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 23:22:19,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 23:22:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 23:22:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:21,087 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-11-25 23:22:21,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 362 [2022-11-25 23:22:42,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 23:22:42,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 23:22:42,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 23:22:43,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 23:22:43,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 23:22:43,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 23:23:02,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 23:23:02,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 23:23:03,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 23:23:03,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 23:23:03,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 23:23:03,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 23:23:06,737 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 15 treesize of output 1 [2022-11-25 23:23:06,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2375 treesize of output 2365 [2022-11-25 23:23:07,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2379 treesize of output 2358 [2022-11-25 23:23:07,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2375 treesize of output 2365 [2022-11-25 23:23:26,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:23:26,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:23:26,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:23:26,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:23:26,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:23:26,704 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 15 treesize of output 1 [2022-11-25 23:23:26,719 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 15 treesize of output 1 [2022-11-25 23:23:26,731 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 15 treesize of output 1 [2022-11-25 23:23:26,805 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:23:26,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-25 23:23:26,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:23:26,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:23:26,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:23:26,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-25 23:23:26,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:23:26,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:23:27,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:23:27,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:23:27,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 23:23:27,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:23:27,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 23:23:29,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2371 treesize of output 2343 [2022-11-25 23:23:30,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2339 treesize of output 2315 [2022-11-25 23:23:30,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2323 treesize of output 2295 [2022-11-25 23:23:52,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2371 treesize of output 2343 [2022-11-25 23:23:52,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2339 treesize of output 2315 [2022-11-25 23:23:52,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2323 treesize of output 2295 [2022-11-25 23:23:56,811 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 57 treesize of output 1 [2022-11-25 23:23:56,830 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 57 treesize of output 1 [2022-11-25 23:23:56,837 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 57 treesize of output 1 [2022-11-25 23:23:56,845 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 45 treesize of output 41 [2022-11-25 23:23:56,865 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 57 treesize of output 1 [2022-11-25 23:23:56,904 INFO L321 Elim1Store]: treesize reduction 127, result has 18.1 percent of original size [2022-11-25 23:23:56,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 205 treesize of output 204 [2022-11-25 23:23:56,923 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 57 treesize of output 1 [2022-11-25 23:23:56,934 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 57 treesize of output 1 [2022-11-25 23:23:56,950 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 57 treesize of output 1 [2022-11-25 23:23:56,955 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 57 treesize of output 1 [2022-11-25 23:23:56,959 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 45 treesize of output 41 [2022-11-25 23:23:56,965 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 57 treesize of output 1 [2022-11-25 23:23:56,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:23:56,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:23:57,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 23:23:57,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 23:24:59,147 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 73 for LOIs [2022-11-25 23:24:59,173 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_clean_up with input of size 69 for LOIs [2022-11-25 23:24:59,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:59,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:59,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 23:24:59,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 23:25:00,545 INFO L197 IcfgInterpreter]: Interpreting procedure aws_is_mem_zeroed with input of size 81 for LOIs [2022-11-25 23:25:00,758 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2895 for LOIs [2022-11-25 23:25:16,153 INFO L197 IcfgInterpreter]: Interpreting procedure my_memset with input of size 81 for LOIs [2022-11-25 23:25:16,273 INFO L197 IcfgInterpreter]: Interpreting procedure memset_impl with input of size 81 for LOIs [2022-11-25 23:25:16,593 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 57 treesize of output 1 [2022-11-25 23:25:16,604 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 57 treesize of output 1 [2022-11-25 23:25:16,615 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 45 treesize of output 41 [2022-11-25 23:25:16,636 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 57 treesize of output 1 [2022-11-25 23:25:16,691 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 693 for LOIs [2022-11-25 23:25:21,404 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 83 for LOIs [2022-11-25 23:25:21,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:25:21,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:25:21,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:25:21,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:25:21,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:25:21,597 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:25:21,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-25 23:25:21,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:25:21,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:25:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:25:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:25:21,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:25:21,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-25 23:25:21,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:25:21,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:25:22,056 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 107 for LOIs [2022-11-25 23:25:22,939 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-11-25 23:25:22,978 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2963 for LOIs [2022-11-25 23:26:53,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:26:53,139 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 15 treesize of output 1 [2022-11-25 23:26:53,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:26:53,157 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 15 treesize of output 1 [2022-11-25 23:27:18,178 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 45 for LOIs [2022-11-25 23:27:18,182 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 70 for LOIs [2022-11-25 23:27:18,195 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:29:57,945 WARN L233 SmtUtils]: Spent 2.62m on a formula simplification. DAG size of input: 2825 DAG size of output: 2437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)