./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh --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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- 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-2329fc7 [2022-12-14 14:56:02,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:56:02,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:56:02,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:56:02,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:56:02,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:56:02,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:56:02,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:56:02,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:56:02,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:56:02,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:56:02,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:56:02,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:56:02,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:56:02,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:56:02,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:56:02,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:56:02,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:56:02,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:56:02,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:56:02,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:56:02,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:56:02,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:56:02,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:56:02,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:56:02,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:56:02,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:56:02,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:56:02,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:56:02,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:56:02,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:56:02,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:56:02,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:56:02,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:56:02,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:56:02,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:56:02,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:56:02,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:56:02,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:56:02,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:56:02,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:56:02,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:56:02,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:56:02,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:56:02,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:56:02,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:56:02,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:56:02,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:56:02,410 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:56:02,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:56:02,410 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:56:02,411 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:56:02,411 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:56:02,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:56:02,411 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:56:02,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:56:02,412 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:56:02,412 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:56:02,412 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:56:02,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:56:02,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:56:02,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:56:02,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:56:02,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:56:02,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:56:02,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:56:02,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:56:02,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:56:02,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:56:02,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:56:02,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:56:02,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:02,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:56:02,416 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:56:02,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:56:02,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:56:02,417 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:56:02,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:56:02,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:56:02,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:56:02,417 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_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2022-12-14 14:56:02,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:56:02,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:56:02,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:56:02,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:56:02,601 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:56:02,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-12-14 14:56:05,225 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:56:05,613 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:56:05,614 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-12-14 14:56:05,645 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/data/9d06c48d7/0a9afaa0d8864126b48845126297f18b/FLAG38aadc0d2 [2022-12-14 14:56:05,658 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/data/9d06c48d7/0a9afaa0d8864126b48845126297f18b [2022-12-14 14:56:05,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:56:05,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:56:05,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:05,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:56:05,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:56:05,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:05" (1/1) ... [2022-12-14 14:56:05,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49779d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:05, skipping insertion in model container [2022-12-14 14:56:05,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:05" (1/1) ... [2022-12-14 14:56:05,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:56:05,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:56:06,130 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:56:06,175 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:56:06,214 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:56:06,219 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:56:06,223 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:56:06,329 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:06,576 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 14:56:06,579 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:06,580 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,583 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:06,586 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:06,586 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,590 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:06,597 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:06,598 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,601 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:56:06,601 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:06,602 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,603 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:06,604 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,605 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:06,605 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,610 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,612 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,621 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,632 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,641 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,642 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,648 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,650 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,651 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,653 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,655 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,658 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,660 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,662 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,663 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,665 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,668 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,669 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,672 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,676 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,678 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,680 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,682 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,683 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,688 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:06,695 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,703 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,705 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,705 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,705 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:06,708 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,721 WARN L623 FunctionHandler]: Unknown extern function __dma_request_channel [2022-12-14 14:56:06,722 WARN L623 FunctionHandler]: Unknown extern function dma_release_channel [2022-12-14 14:56:06,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,725 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,726 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,727 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,728 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,730 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,732 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,732 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,734 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:56:06,734 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,735 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,735 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,736 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,737 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,737 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,737 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,748 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,749 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,751 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,751 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 14:56:06,752 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,753 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,754 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:06,754 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:06,755 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,756 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,757 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:06,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:06,762 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 14:56:06,763 WARN L623 FunctionHandler]: Unknown extern function device_register [2022-12-14 14:56:06,763 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:06,764 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:56:06,764 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:06,765 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:06,767 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:06,773 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,774 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,774 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,775 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:06,775 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,777 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 14:56:06,778 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:06,778 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 14:56:06,795 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,799 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,800 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,804 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,808 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,809 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,814 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,817 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,819 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,822 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,826 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,827 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,832 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:06,833 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,833 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,834 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,834 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:06,835 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,877 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-12-14 14:56:06,877 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 14:56:06,888 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 14:56:06,896 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:56:06,903 WARN L623 FunctionHandler]: Unknown extern function add_uevent_var [2022-12-14 14:56:06,907 WARN L623 FunctionHandler]: Unknown extern function __class_register [2022-12-14 14:56:06,908 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 14:56:06,908 WARN L623 FunctionHandler]: Unknown extern function class_unregister [2022-12-14 14:56:06,956 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:56:06,958 WARN L623 FunctionHandler]: Unknown extern function ldv_module_exit [2022-12-14 14:56:06,961 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,962 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,962 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:06,963 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:06,963 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:06,969 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 14:56:07,010 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,014 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,017 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,021 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,025 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,029 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,033 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,037 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,041 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,046 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,050 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,051 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,055 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,060 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:56:07,069 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-14 14:56:07,069 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,070 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,070 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,073 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-14 14:56:07,074 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,074 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,074 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,081 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,085 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,091 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,099 WARN L623 FunctionHandler]: Unknown extern function ldv_release_5 [2022-12-14 14:56:07,100 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_5 [2022-12-14 14:56:07,100 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,101 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,101 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,101 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,102 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,106 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_561f125d-8343-4ee2-8d37-ca2eb15e9db6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-12-14 14:56:07,130 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,131 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,135 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:07,186 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:56:07,239 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:56:07,240 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:56:07,241 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:56:07,241 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:56:07,242 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:56:07,243 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,254 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 14:56:07,255 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:07,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,259 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:07,260 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:07,260 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,263 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:07,265 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:07,266 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,267 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:56:07,267 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:07,267 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,267 WARN L623 FunctionHandler]: Unknown extern function request_resource [2022-12-14 14:56:07,268 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,268 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-14 14:56:07,268 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,271 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,273 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,278 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,283 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,283 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,284 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,284 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,286 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,287 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,289 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,291 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,294 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,294 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,296 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,296 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,301 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,304 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,305 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,307 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,308 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,311 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:07,313 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,314 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,315 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,316 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,316 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:07,318 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,344 WARN L623 FunctionHandler]: Unknown extern function __dma_request_channel [2022-12-14 14:56:07,345 WARN L623 FunctionHandler]: Unknown extern function dma_release_channel [2022-12-14 14:56:07,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,347 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,348 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,350 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,353 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,354 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,355 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,356 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:56:07,356 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,357 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,357 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,358 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,358 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,359 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,359 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,365 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,368 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 14:56:07,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,369 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,369 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:07,369 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:07,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,371 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:07,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,373 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 14:56:07,373 WARN L623 FunctionHandler]: Unknown extern function device_register [2022-12-14 14:56:07,373 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:07,374 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:56:07,374 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:56:07,375 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:56:07,376 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 14:56:07,381 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,382 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,382 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,383 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,383 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,385 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 14:56:07,386 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,386 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 14:56:07,387 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,388 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,390 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,391 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,393 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,395 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,396 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,398 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,408 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,409 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,411 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,412 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,415 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 14:56:07,416 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,416 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,417 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,417 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,418 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,420 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-12-14 14:56:07,421 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 14:56:07,425 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 14:56:07,425 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:56:07,427 WARN L623 FunctionHandler]: Unknown extern function add_uevent_var [2022-12-14 14:56:07,428 WARN L623 FunctionHandler]: Unknown extern function __class_register [2022-12-14 14:56:07,429 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 14:56:07,429 WARN L623 FunctionHandler]: Unknown extern function class_unregister [2022-12-14 14:56:07,431 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:56:07,433 WARN L623 FunctionHandler]: Unknown extern function ldv_module_exit [2022-12-14 14:56:07,436 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,436 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,437 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,437 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,437 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,437 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 14:56:07,441 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,442 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,443 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,444 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,445 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,446 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,447 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,448 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,449 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,451 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,453 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,454 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,455 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,457 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:56:07,465 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-14 14:56:07,465 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,466 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,466 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:56:07,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:07,467 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-14 14:56:07,467 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,467 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,467 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 14:56:07,469 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,470 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:56:07,471 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,480 WARN L623 FunctionHandler]: Unknown extern function ldv_release_5 [2022-12-14 14:56:07,481 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_5 [2022-12-14 14:56:07,481 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,482 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,482 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:07,482 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 14:56:07,483 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 14:56:07,483 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_561f125d-8343-4ee2-8d37-ca2eb15e9db6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-12-14 14:56:07,485 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,485 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,487 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:07,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:07,617 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:56:07,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07 WrapperNode [2022-12-14 14:56:07,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:07,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:07,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:56:07,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:56:07,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,818 INFO L138 Inliner]: procedures = 303, calls = 3997, calls flagged for inlining = 138, calls inlined = 95, statements flattened = 5164 [2022-12-14 14:56:07,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:07,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:56:07,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:56:07,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:56:07,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:56:07,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:56:07,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:56:07,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:56:07,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (1/1) ... [2022-12-14 14:56:07,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:08,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:08,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:56:08,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:56:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure rio_uevent [2022-12-14 14:56:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_uevent [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 14:56:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 14:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_16 [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_16 [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_remove [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_remove [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:56:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure bus_scan_store [2022-12-14 14:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_scan_store [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 14:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 14:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure disc_work_handler [2022-12-14 14:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure disc_work_handler [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_put [2022-12-14 14:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_put [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:56:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-12-14 14:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 14:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_16 [2022-12-14 14:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_16 [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_read_config_32 [2022-12-14 14:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_read_config_32 [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_write_config_32 [2022-12-14 14:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_write_config_32 [2022-12-14 14:56:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 14:56:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 14:56:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure rio_name [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_name [2022-12-14 14:56:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 14:56:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_probe [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_probe [2022-12-14 14:56:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 14:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_32 [2022-12-14 14:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_32 [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-12-14 14:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~~u32~0~TO~int [2022-12-14 14:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~~u32~0~TO~int [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_get [2022-12-14 14:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_get [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:56:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_8 [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_8 [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_bus [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_bus [2022-12-14 14:56:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_32 [2022-12-14 14:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_32 [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_device [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_device [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_8 [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_8 [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:56:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~$Pointer$~TO~int [2022-12-14 14:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~$Pointer$~TO~int [2022-12-14 14:56:08,520 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:56:08,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:56:08,645 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:56:12,840 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:56:13,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:56:13,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:56:13,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:13 BoogieIcfgContainer [2022-12-14 14:56:13,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:56:13,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:56:13,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:56:13,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:56:13,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:56:05" (1/3) ... [2022-12-14 14:56:13,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe80a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:13, skipping insertion in model container [2022-12-14 14:56:13,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:07" (2/3) ... [2022-12-14 14:56:13,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe80a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:13, skipping insertion in model container [2022-12-14 14:56:13,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:13" (3/3) ... [2022-12-14 14:56:13,393 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-12-14 14:56:13,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:56:13,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:56:13,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:56:13,470 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;@4d1cc672, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:56:13,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:56:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 720 states, 474 states have (on average 1.3924050632911393) internal successors, (660), 505 states have internal predecessors, (660), 197 states have call successors, (197), 48 states have call predecessors, (197), 47 states have return successors, (177), 176 states have call predecessors, (177), 177 states have call successors, (177) [2022-12-14 14:56:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 14:56:13,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:13,487 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:13,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:13,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1650045431, now seen corresponding path program 1 times [2022-12-14 14:56:13,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:13,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58731161] [2022-12-14 14:56:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:13,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 14:56:14,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:14,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58731161] [2022-12-14 14:56:14,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58731161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:14,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:14,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:14,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273401941] [2022-12-14 14:56:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:14,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:14,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:14,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:14,481 INFO L87 Difference]: Start difference. First operand has 720 states, 474 states have (on average 1.3924050632911393) internal successors, (660), 505 states have internal predecessors, (660), 197 states have call successors, (197), 48 states have call predecessors, (197), 47 states have return successors, (177), 176 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 14:56:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:15,182 INFO L93 Difference]: Finished difference Result 2124 states and 3089 transitions. [2022-12-14 14:56:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:15,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2022-12-14 14:56:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:15,210 INFO L225 Difference]: With dead ends: 2124 [2022-12-14 14:56:15,210 INFO L226 Difference]: Without dead ends: 1369 [2022-12-14 14:56:15,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:15,221 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 983 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:15,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2018 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-12-14 14:56:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1366. [2022-12-14 14:56:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 930 states have (on average 1.3483870967741935) internal successors, (1254), 947 states have internal predecessors, (1254), 343 states have call successors, (343), 93 states have call predecessors, (343), 92 states have return successors, (341), 339 states have call predecessors, (341), 341 states have call successors, (341) [2022-12-14 14:56:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1938 transitions. [2022-12-14 14:56:15,347 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1938 transitions. Word has length 64 [2022-12-14 14:56:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:15,348 INFO L495 AbstractCegarLoop]: Abstraction has 1366 states and 1938 transitions. [2022-12-14 14:56:15,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 14:56:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1938 transitions. [2022-12-14 14:56:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 14:56:15,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:15,354 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:56:15,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1154366986, now seen corresponding path program 1 times [2022-12-14 14:56:15,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693293394] [2022-12-14 14:56:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:15,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 14:56:15,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:15,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693293394] [2022-12-14 14:56:15,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693293394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:15,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:15,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138268956] [2022-12-14 14:56:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:15,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:15,858 INFO L87 Difference]: Start difference. First operand 1366 states and 1938 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 14:56:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:16,475 INFO L93 Difference]: Finished difference Result 2640 states and 3778 transitions. [2022-12-14 14:56:16,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:16,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2022-12-14 14:56:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:16,490 INFO L225 Difference]: With dead ends: 2640 [2022-12-14 14:56:16,491 INFO L226 Difference]: Without dead ends: 2635 [2022-12-14 14:56:16,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:16,493 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 899 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:16,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1945 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:16,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2022-12-14 14:56:16,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2625. [2022-12-14 14:56:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 1792 states have (on average 1.3532366071428572) internal successors, (2425), 1833 states have internal predecessors, (2425), 656 states have call successors, (656), 179 states have call predecessors, (656), 176 states have return successors, (674), 640 states have call predecessors, (674), 654 states have call successors, (674) [2022-12-14 14:56:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3755 transitions. [2022-12-14 14:56:16,616 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 3755 transitions. Word has length 67 [2022-12-14 14:56:16,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:16,617 INFO L495 AbstractCegarLoop]: Abstraction has 2625 states and 3755 transitions. [2022-12-14 14:56:16,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 14:56:16,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 3755 transitions. [2022-12-14 14:56:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 14:56:16,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:16,620 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:16,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:56:16,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:16,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1734620064, now seen corresponding path program 1 times [2022-12-14 14:56:16,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:16,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710736629] [2022-12-14 14:56:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:16,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 14:56:17,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:17,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710736629] [2022-12-14 14:56:17,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710736629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:17,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:17,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:17,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162906842] [2022-12-14 14:56:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:17,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:17,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:17,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:17,010 INFO L87 Difference]: Start difference. First operand 2625 states and 3755 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 14:56:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:17,651 INFO L93 Difference]: Finished difference Result 7755 states and 11068 transitions. [2022-12-14 14:56:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2022-12-14 14:56:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:17,670 INFO L225 Difference]: With dead ends: 7755 [2022-12-14 14:56:17,670 INFO L226 Difference]: Without dead ends: 5139 [2022-12-14 14:56:17,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:17,679 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 934 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:17,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1907 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5139 states. [2022-12-14 14:56:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5139 to 5131. [2022-12-14 14:56:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 3498 states have (on average 1.349056603773585) internal successors, (4719), 3581 states have internal predecessors, (4719), 1280 states have call successors, (1280), 357 states have call predecessors, (1280), 352 states have return successors, (1316), 1248 states have call predecessors, (1316), 1278 states have call successors, (1316) [2022-12-14 14:56:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7315 transitions. [2022-12-14 14:56:17,868 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7315 transitions. Word has length 91 [2022-12-14 14:56:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:17,868 INFO L495 AbstractCegarLoop]: Abstraction has 5131 states and 7315 transitions. [2022-12-14 14:56:17,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 14:56:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7315 transitions. [2022-12-14 14:56:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 14:56:17,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:17,871 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:17,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:56:17,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:17,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:17,871 INFO L85 PathProgramCache]: Analyzing trace with hash -613686134, now seen corresponding path program 1 times [2022-12-14 14:56:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:17,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078859960] [2022-12-14 14:56:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:18,189 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 14:56:18,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:18,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078859960] [2022-12-14 14:56:18,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078859960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:18,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:18,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:18,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137210905] [2022-12-14 14:56:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:18,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:18,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:18,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:18,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:18,192 INFO L87 Difference]: Start difference. First operand 5131 states and 7315 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 14:56:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:18,999 INFO L93 Difference]: Finished difference Result 14927 states and 21236 transitions. [2022-12-14 14:56:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-12-14 14:56:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:19,033 INFO L225 Difference]: With dead ends: 14927 [2022-12-14 14:56:19,034 INFO L226 Difference]: Without dead ends: 9805 [2022-12-14 14:56:19,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:19,050 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 919 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:19,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2010 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9805 states. [2022-12-14 14:56:19,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9805 to 9795. [2022-12-14 14:56:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9795 states, 6666 states have (on average 1.3427842784278428) internal successors, (8951), 6821 states have internal predecessors, (8951), 2448 states have call successors, (2448), 689 states have call predecessors, (2448), 680 states have return successors, (2518), 2388 states have call predecessors, (2518), 2446 states have call successors, (2518) [2022-12-14 14:56:19,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 13917 transitions. [2022-12-14 14:56:19,499 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 13917 transitions. Word has length 103 [2022-12-14 14:56:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:19,500 INFO L495 AbstractCegarLoop]: Abstraction has 9795 states and 13917 transitions. [2022-12-14 14:56:19,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 14:56:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 13917 transitions. [2022-12-14 14:56:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 14:56:19,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:19,502 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:19,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:56:19,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:19,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash 303751862, now seen corresponding path program 1 times [2022-12-14 14:56:19,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:19,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516279234] [2022-12-14 14:56:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:19,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-14 14:56:19,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:19,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516279234] [2022-12-14 14:56:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516279234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:19,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:19,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771404742] [2022-12-14 14:56:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:19,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:19,898 INFO L87 Difference]: Start difference. First operand 9795 states and 13917 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:56:20,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:20,820 INFO L93 Difference]: Finished difference Result 27061 states and 38366 transitions. [2022-12-14 14:56:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:20,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-12-14 14:56:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:20,894 INFO L225 Difference]: With dead ends: 27061 [2022-12-14 14:56:20,894 INFO L226 Difference]: Without dead ends: 17275 [2022-12-14 14:56:20,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:20,933 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 746 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:20,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 2034 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17275 states. [2022-12-14 14:56:21,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17275 to 17237. [2022-12-14 14:56:21,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17237 states, 11880 states have (on average 1.3411616161616162) internal successors, (15933), 12073 states have internal predecessors, (15933), 4196 states have call successors, (4196), 1169 states have call predecessors, (4196), 1160 states have return successors, (4274), 4122 states have call predecessors, (4274), 4194 states have call successors, (4274) [2022-12-14 14:56:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17237 states to 17237 states and 24403 transitions. [2022-12-14 14:56:21,694 INFO L78 Accepts]: Start accepts. Automaton has 17237 states and 24403 transitions. Word has length 130 [2022-12-14 14:56:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:21,695 INFO L495 AbstractCegarLoop]: Abstraction has 17237 states and 24403 transitions. [2022-12-14 14:56:21,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:56:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17237 states and 24403 transitions. [2022-12-14 14:56:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-14 14:56:21,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:21,702 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-12-14 14:56:21,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:56:21,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:21,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:21,703 INFO L85 PathProgramCache]: Analyzing trace with hash -808261241, now seen corresponding path program 1 times [2022-12-14 14:56:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:21,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938717112] [2022-12-14 14:56:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-14 14:56:22,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:22,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938717112] [2022-12-14 14:56:22,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938717112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:22,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:22,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:22,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376596157] [2022-12-14 14:56:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:22,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:22,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:22,237 INFO L87 Difference]: Start difference. First operand 17237 states and 24403 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 14:56:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:23,630 INFO L93 Difference]: Finished difference Result 42915 states and 60778 transitions. [2022-12-14 14:56:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:23,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2022-12-14 14:56:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:23,702 INFO L225 Difference]: With dead ends: 42915 [2022-12-14 14:56:23,702 INFO L226 Difference]: Without dead ends: 25687 [2022-12-14 14:56:23,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:23,740 INFO L413 NwaCegarLoop]: 1459 mSDtfsCounter, 940 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:23,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 2318 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:56:23,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25687 states. [2022-12-14 14:56:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25687 to 25679. [2022-12-14 14:56:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25679 states, 17758 states have (on average 1.3386079513458722) internal successors, (23771), 18037 states have internal predecessors, (23771), 6192 states have call successors, (6192), 1741 states have call predecessors, (6192), 1728 states have return successors, (6306), 6084 states have call predecessors, (6306), 6190 states have call successors, (6306) [2022-12-14 14:56:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25679 states to 25679 states and 36269 transitions. [2022-12-14 14:56:24,718 INFO L78 Accepts]: Start accepts. Automaton has 25679 states and 36269 transitions. Word has length 159 [2022-12-14 14:56:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:24,719 INFO L495 AbstractCegarLoop]: Abstraction has 25679 states and 36269 transitions. [2022-12-14 14:56:24,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 14:56:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 25679 states and 36269 transitions. [2022-12-14 14:56:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-14 14:56:24,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:24,730 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:24,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:56:24,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:24,730 INFO L85 PathProgramCache]: Analyzing trace with hash -357697551, now seen corresponding path program 1 times [2022-12-14 14:56:24,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:24,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972691307] [2022-12-14 14:56:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:24,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-14 14:56:25,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:25,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972691307] [2022-12-14 14:56:25,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972691307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:25,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:25,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:25,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477142132] [2022-12-14 14:56:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:25,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:25,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:25,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:25,274 INFO L87 Difference]: Start difference. First operand 25679 states and 36269 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 14:56:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:26,584 INFO L93 Difference]: Finished difference Result 63785 states and 90134 transitions. [2022-12-14 14:56:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:26,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 171 [2022-12-14 14:56:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:26,672 INFO L225 Difference]: With dead ends: 63785 [2022-12-14 14:56:26,672 INFO L226 Difference]: Without dead ends: 38115 [2022-12-14 14:56:26,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:26,722 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 926 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:26,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 2309 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:56:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38115 states. [2022-12-14 14:56:27,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38115 to 38097. [2022-12-14 14:56:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38097 states, 26440 states have (on average 1.3359682299546143) internal successors, (35323), 26837 states have internal predecessors, (35323), 9102 states have call successors, (9102), 2573 states have call predecessors, (9102), 2554 states have return successors, (9268), 8946 states have call predecessors, (9268), 9100 states have call successors, (9268) [2022-12-14 14:56:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38097 states to 38097 states and 53693 transitions. [2022-12-14 14:56:28,030 INFO L78 Accepts]: Start accepts. Automaton has 38097 states and 53693 transitions. Word has length 171 [2022-12-14 14:56:28,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:28,031 INFO L495 AbstractCegarLoop]: Abstraction has 38097 states and 53693 transitions. [2022-12-14 14:56:28,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 14:56:28,031 INFO L276 IsEmpty]: Start isEmpty. Operand 38097 states and 53693 transitions. [2022-12-14 14:56:28,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-14 14:56:28,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:28,050 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:28,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:56:28,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash 476123823, now seen corresponding path program 1 times [2022-12-14 14:56:28,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:28,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172625089] [2022-12-14 14:56:28,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:28,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-12-14 14:56:29,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:29,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172625089] [2022-12-14 14:56:29,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172625089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:29,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:29,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:56:29,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760813709] [2022-12-14 14:56:29,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:29,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:56:29,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:56:29,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:56:29,446 INFO L87 Difference]: Start difference. First operand 38097 states and 53693 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:56:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:31,974 INFO L93 Difference]: Finished difference Result 88699 states and 125164 transitions. [2022-12-14 14:56:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:56:31,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 176 [2022-12-14 14:56:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:32,113 INFO L225 Difference]: With dead ends: 88699 [2022-12-14 14:56:32,113 INFO L226 Difference]: Without dead ends: 50611 [2022-12-14 14:56:32,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:56:32,177 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 978 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 5753 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:32,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 5753 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 14:56:32,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50611 states. [2022-12-14 14:56:33,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50611 to 50435. [2022-12-14 14:56:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50435 states, 35026 states have (on average 1.3346371267058756) internal successors, (46747), 35565 states have internal predecessors, (46747), 12032 states have call successors, (12032), 3377 states have call predecessors, (12032), 3376 states have return successors, (12282), 11852 states have call predecessors, (12282), 12030 states have call successors, (12282) [2022-12-14 14:56:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50435 states to 50435 states and 71061 transitions. [2022-12-14 14:56:33,830 INFO L78 Accepts]: Start accepts. Automaton has 50435 states and 71061 transitions. Word has length 176 [2022-12-14 14:56:33,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:33,830 INFO L495 AbstractCegarLoop]: Abstraction has 50435 states and 71061 transitions. [2022-12-14 14:56:33,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:56:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 50435 states and 71061 transitions. [2022-12-14 14:56:33,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-14 14:56:33,847 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:33,847 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:33,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:56:33,847 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:33,848 INFO L85 PathProgramCache]: Analyzing trace with hash -247535889, now seen corresponding path program 1 times [2022-12-14 14:56:33,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:33,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997475744] [2022-12-14 14:56:33,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:33,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-12-14 14:56:35,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:35,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997475744] [2022-12-14 14:56:35,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997475744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:35,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:35,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:56:35,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976956544] [2022-12-14 14:56:35,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:35,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:56:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:56:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:56:35,235 INFO L87 Difference]: Start difference. First operand 50435 states and 71061 transitions. Second operand has 6 states, 4 states have (on average 17.75) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:56:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:36,979 INFO L93 Difference]: Finished difference Result 101245 states and 142925 transitions. [2022-12-14 14:56:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:56:36,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 17.75) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 198 [2022-12-14 14:56:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:37,104 INFO L225 Difference]: With dead ends: 101245 [2022-12-14 14:56:37,104 INFO L226 Difference]: Without dead ends: 50531 [2022-12-14 14:56:37,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:56:37,189 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 3 mSDsluCounter, 3499 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4378 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:37,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4378 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:56:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50531 states. [2022-12-14 14:56:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50531 to 50531. [2022-12-14 14:56:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50531 states, 35122 states have (on average 1.3337224531632594) internal successors, (46843), 35661 states have internal predecessors, (46843), 12032 states have call successors, (12032), 3377 states have call predecessors, (12032), 3376 states have return successors, (12282), 11852 states have call predecessors, (12282), 12030 states have call successors, (12282) [2022-12-14 14:56:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50531 states to 50531 states and 71157 transitions. [2022-12-14 14:56:38,606 INFO L78 Accepts]: Start accepts. Automaton has 50531 states and 71157 transitions. Word has length 198 [2022-12-14 14:56:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:38,606 INFO L495 AbstractCegarLoop]: Abstraction has 50531 states and 71157 transitions. [2022-12-14 14:56:38,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 17.75) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:56:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 50531 states and 71157 transitions. [2022-12-14 14:56:38,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-12-14 14:56:38,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:38,618 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:38,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:56:38,618 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1835186175, now seen corresponding path program 1 times [2022-12-14 14:56:38,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:38,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858075135] [2022-12-14 14:56:38,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:38,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-12-14 14:56:39,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:39,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858075135] [2022-12-14 14:56:39,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858075135] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:56:39,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490499054] [2022-12-14 14:56:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:39,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:39,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:39,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:56:39,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:56:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:41,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 7702 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:56:41,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-12-14 14:56:41,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:56:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490499054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:41,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:56:41,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2022-12-14 14:56:41,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955129886] [2022-12-14 14:56:41,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:41,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:56:41,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:56:41,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:56:41,517 INFO L87 Difference]: Start difference. First operand 50531 states and 71157 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:56:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:48,230 INFO L93 Difference]: Finished difference Result 84058 states and 120878 transitions. [2022-12-14 14:56:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 14:56:48,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 199 [2022-12-14 14:56:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:48,456 INFO L225 Difference]: With dead ends: 84058 [2022-12-14 14:56:48,456 INFO L226 Difference]: Without dead ends: 84055 [2022-12-14 14:56:48,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2022-12-14 14:56:48,494 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2011 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 4311 SdHoareTripleChecker+Invalid, 6130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:48,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 4311 Invalid, 6130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 14:56:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84055 states. [2022-12-14 14:56:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84055 to 79779. [2022-12-14 14:56:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79779 states, 55193 states have (on average 1.3321435689308427) internal successors, (73525), 56043 states have internal predecessors, (73525), 19251 states have call successors, (19251), 5131 states have call predecessors, (19251), 5334 states have return successors, (20957), 19264 states have call predecessors, (20957), 19249 states have call successors, (20957) [2022-12-14 14:56:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79779 states to 79779 states and 113733 transitions. [2022-12-14 14:56:51,219 INFO L78 Accepts]: Start accepts. Automaton has 79779 states and 113733 transitions. Word has length 199 [2022-12-14 14:56:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:51,219 INFO L495 AbstractCegarLoop]: Abstraction has 79779 states and 113733 transitions. [2022-12-14 14:56:51,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:56:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 79779 states and 113733 transitions. [2022-12-14 14:56:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 14:56:51,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:51,231 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:51,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:56:51,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:51,433 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1298053247, now seen corresponding path program 1 times [2022-12-14 14:56:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:51,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128090359] [2022-12-14 14:56:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-12-14 14:56:52,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128090359] [2022-12-14 14:56:52,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128090359] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:56:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188144500] [2022-12-14 14:56:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:52,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:52,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:56:52,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:56:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:53,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 7678 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:56:53,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-12-14 14:56:54,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:56:54,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188144500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:54,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:56:54,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2022-12-14 14:56:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153342416] [2022-12-14 14:56:54,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:54,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:56:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:56:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-12-14 14:56:54,160 INFO L87 Difference]: Start difference. First operand 79779 states and 113733 transitions. Second operand has 10 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:05,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:05,573 INFO L93 Difference]: Finished difference Result 202775 states and 297383 transitions. [2022-12-14 14:57:05,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 14:57:05,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 205 [2022-12-14 14:57:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:06,234 INFO L225 Difference]: With dead ends: 202775 [2022-12-14 14:57:06,234 INFO L226 Difference]: Without dead ends: 202772 [2022-12-14 14:57:06,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2022-12-14 14:57:06,314 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 2409 mSDsluCounter, 7468 mSDsCounter, 0 mSdLazyCounter, 9047 mSolverCounterSat, 1284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 9041 SdHoareTripleChecker+Invalid, 10331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1284 IncrementalHoareTripleChecker+Valid, 9047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:06,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 9041 Invalid, 10331 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1284 Valid, 9047 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 14:57:06,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202772 states. [2022-12-14 14:57:13,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202772 to 133979. [2022-12-14 14:57:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133979 states, 92599 states have (on average 1.332206611302498) internal successors, (123361), 94047 states have internal predecessors, (123361), 32417 states have call successors, (32417), 8639 states have call predecessors, (32417), 8962 states have return successors, (35387), 32360 states have call predecessors, (35387), 32415 states have call successors, (35387) [2022-12-14 14:57:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133979 states to 133979 states and 191165 transitions. [2022-12-14 14:57:13,513 INFO L78 Accepts]: Start accepts. Automaton has 133979 states and 191165 transitions. Word has length 205 [2022-12-14 14:57:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:13,514 INFO L495 AbstractCegarLoop]: Abstraction has 133979 states and 191165 transitions. [2022-12-14 14:57:13,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 133979 states and 191165 transitions. [2022-12-14 14:57:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-14 14:57:13,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:13,526 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:13,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:57:13,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:57:13,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:57:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash 731416175, now seen corresponding path program 1 times [2022-12-14 14:57:13,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:13,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892507721] [2022-12-14 14:57:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:13,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-14 14:57:14,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:14,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892507721] [2022-12-14 14:57:14,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892507721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:14,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:14,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472776105] [2022-12-14 14:57:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:14,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:14,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:14,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:14,611 INFO L87 Difference]: Start difference. First operand 133979 states and 191165 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:57:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:19,828 INFO L93 Difference]: Finished difference Result 269429 states and 384437 transitions. [2022-12-14 14:57:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:57:19,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 198 [2022-12-14 14:57:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:20,203 INFO L225 Difference]: With dead ends: 269429 [2022-12-14 14:57:20,204 INFO L226 Difference]: Without dead ends: 135459 [2022-12-14 14:57:20,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:20,450 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 4 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:20,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3551 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:57:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135459 states. [2022-12-14 14:57:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135459 to 134699. [2022-12-14 14:57:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134699 states, 93079 states have (on average 1.3304934517990095) internal successors, (123841), 94527 states have internal predecessors, (123841), 32537 states have call successors, (32537), 8639 states have call predecessors, (32537), 9082 states have return successors, (35747), 32600 states have call predecessors, (35747), 32535 states have call successors, (35747) [2022-12-14 14:57:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134699 states to 134699 states and 192125 transitions. [2022-12-14 14:57:26,306 INFO L78 Accepts]: Start accepts. Automaton has 134699 states and 192125 transitions. Word has length 198 [2022-12-14 14:57:26,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:26,306 INFO L495 AbstractCegarLoop]: Abstraction has 134699 states and 192125 transitions. [2022-12-14 14:57:26,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:57:26,307 INFO L276 IsEmpty]: Start isEmpty. Operand 134699 states and 192125 transitions. [2022-12-14 14:57:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-12-14 14:57:26,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:26,319 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:26,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:57:26,320 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:57:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:26,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1306647597, now seen corresponding path program 1 times [2022-12-14 14:57:26,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:26,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880538704] [2022-12-14 14:57:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:26,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-14 14:57:29,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:29,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880538704] [2022-12-14 14:57:29,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880538704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:29,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:29,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 14:57:29,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833654988] [2022-12-14 14:57:29,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:29,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 14:57:29,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 14:57:29,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-14 14:57:29,312 INFO L87 Difference]: Start difference. First operand 134699 states and 192125 transitions. Second operand has 12 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-14 14:57:35,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:35,401 INFO L93 Difference]: Finished difference Result 274309 states and 391493 transitions. [2022-12-14 14:57:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 14:57:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 199 [2022-12-14 14:57:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:35,801 INFO L225 Difference]: With dead ends: 274309 [2022-12-14 14:57:35,801 INFO L226 Difference]: Without dead ends: 139619 [2022-12-14 14:57:36,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2022-12-14 14:57:36,072 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 129 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 8681 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:36,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 8681 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 14:57:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139619 states. [2022-12-14 14:57:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139619 to 135719. [2022-12-14 14:57:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135719 states, 93859 states have (on average 1.3303039665881802) internal successors, (124861), 95307 states have internal predecessors, (124861), 32657 states have call successors, (32657), 8639 states have call predecessors, (32657), 9202 states have return successors, (36215), 32840 states have call predecessors, (36215), 32655 states have call successors, (36215) [2022-12-14 14:57:42,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135719 states to 135719 states and 193733 transitions. [2022-12-14 14:57:42,195 INFO L78 Accepts]: Start accepts. Automaton has 135719 states and 193733 transitions. Word has length 199 [2022-12-14 14:57:42,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:42,196 INFO L495 AbstractCegarLoop]: Abstraction has 135719 states and 193733 transitions. [2022-12-14 14:57:42,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.0) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-14 14:57:42,196 INFO L276 IsEmpty]: Start isEmpty. Operand 135719 states and 193733 transitions. [2022-12-14 14:57:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 14:57:42,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:42,209 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:57:42,209 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:57:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash -511216850, now seen corresponding path program 1 times [2022-12-14 14:57:42,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:42,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888085843] [2022-12-14 14:57:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-12-14 14:57:43,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888085843] [2022-12-14 14:57:43,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888085843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:43,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:43,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:57:43,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714538878] [2022-12-14 14:57:43,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:57:43,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:43,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:57:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:57:43,400 INFO L87 Difference]: Start difference. First operand 135719 states and 193733 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 14:57:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:50,365 INFO L93 Difference]: Finished difference Result 304836 states and 435195 transitions. [2022-12-14 14:57:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:57:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 202 [2022-12-14 14:57:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:50,843 INFO L225 Difference]: With dead ends: 304836 [2022-12-14 14:57:50,843 INFO L226 Difference]: Without dead ends: 169126 [2022-12-14 14:57:51,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:57:51,101 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 976 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:51,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 6222 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:57:51,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169126 states. [2022-12-14 14:57:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169126 to 135599. [2022-12-14 14:57:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135599 states, 93799 states have (on average 1.3305152506956364) internal successors, (124801), 95187 states have internal predecessors, (124801), 32597 states have call successors, (32597), 8639 states have call predecessors, (32597), 9202 states have return successors, (36155), 32780 states have call predecessors, (36155), 32595 states have call successors, (36155) [2022-12-14 14:57:57,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135599 states to 135599 states and 193553 transitions. [2022-12-14 14:57:57,389 INFO L78 Accepts]: Start accepts. Automaton has 135599 states and 193553 transitions. Word has length 202 [2022-12-14 14:57:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:57,390 INFO L495 AbstractCegarLoop]: Abstraction has 135599 states and 193553 transitions. [2022-12-14 14:57:57,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 14:57:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 135599 states and 193553 transitions. [2022-12-14 14:57:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-12-14 14:57:57,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:57,404 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 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, 1, 1] [2022-12-14 14:57:57,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:57:57,404 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:57:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1741037449, now seen corresponding path program 1 times [2022-12-14 14:57:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:57,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055504730] [2022-12-14 14:57:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:57,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-12-14 14:57:58,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:58,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055504730] [2022-12-14 14:57:58,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055504730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:58,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:58,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:57:58,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144963391] [2022-12-14 14:57:58,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:58,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:57:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:58,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:57:58,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:57:58,253 INFO L87 Difference]: Start difference. First operand 135599 states and 193553 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:58:06,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:06,152 INFO L93 Difference]: Finished difference Result 315003 states and 449855 transitions. [2022-12-14 14:58:06,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:58:06,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 200 [2022-12-14 14:58:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:06,662 INFO L225 Difference]: With dead ends: 315003 [2022-12-14 14:58:06,662 INFO L226 Difference]: Without dead ends: 179413 [2022-12-14 14:58:06,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:58:06,921 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 964 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 5637 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:06,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 5637 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 14:58:07,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179413 states. [2022-12-14 14:58:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179413 to 178827. [2022-12-14 14:58:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178827 states, 123753 states have (on average 1.3298101864197232) internal successors, (164568), 125605 states have internal predecessors, (164568), 43010 states have call successors, (43010), 11280 states have call predecessors, (43010), 12063 states have return successors, (47692), 43305 states have call predecessors, (47692), 43008 states have call successors, (47692) [2022-12-14 14:58:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178827 states to 178827 states and 255270 transitions. [2022-12-14 14:58:15,010 INFO L78 Accepts]: Start accepts. Automaton has 178827 states and 255270 transitions. Word has length 200 [2022-12-14 14:58:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:15,010 INFO L495 AbstractCegarLoop]: Abstraction has 178827 states and 255270 transitions. [2022-12-14 14:58:15,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:58:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 178827 states and 255270 transitions. [2022-12-14 14:58:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 14:58:15,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:15,024 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:15,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:58:15,025 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:58:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash 230549225, now seen corresponding path program 1 times [2022-12-14 14:58:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:15,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109970502] [2022-12-14 14:58:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-12-14 14:58:17,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:17,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109970502] [2022-12-14 14:58:17,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109970502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:17,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:17,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:58:17,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397941872] [2022-12-14 14:58:17,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:17,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:58:17,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:58:17,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:17,128 INFO L87 Difference]: Start difference. First operand 178827 states and 255270 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:58:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:32,359 INFO L93 Difference]: Finished difference Result 336971 states and 488030 transitions. [2022-12-14 14:58:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:58:32,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 205 [2022-12-14 14:58:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:33,514 INFO L225 Difference]: With dead ends: 336971 [2022-12-14 14:58:33,514 INFO L226 Difference]: Without dead ends: 336968 [2022-12-14 14:58:33,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:58:33,623 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 2593 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 4672 mSolverCounterSat, 679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 5026 SdHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 4672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:33,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2771 Valid, 5026 Invalid, 5351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 4672 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 14:58:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336968 states. [2022-12-14 14:58:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336968 to 328433. [2022-12-14 14:58:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328433 states, 226565 states have (on average 1.3301701498466223) internal successors, (301370), 230507 states have internal predecessors, (301370), 79544 states have call successors, (79544), 20464 states have call predecessors, (79544), 22323 states have return successors, (92338), 80473 states have call predecessors, (92338), 79542 states have call successors, (92338) [2022-12-14 14:58:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328433 states to 328433 states and 473252 transitions. [2022-12-14 14:58:50,299 INFO L78 Accepts]: Start accepts. Automaton has 328433 states and 473252 transitions. Word has length 205 [2022-12-14 14:58:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:50,299 INFO L495 AbstractCegarLoop]: Abstraction has 328433 states and 473252 transitions. [2022-12-14 14:58:50,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:58:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 328433 states and 473252 transitions. [2022-12-14 14:58:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-14 14:58:50,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:50,318 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:50,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:58:50,318 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:58:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash 688149619, now seen corresponding path program 1 times [2022-12-14 14:58:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:50,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455714931] [2022-12-14 14:58:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:50,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-12-14 14:58:52,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455714931] [2022-12-14 14:58:52,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455714931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:58:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355823372] [2022-12-14 14:58:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:52,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:58:52,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:58:52,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:58:52,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:58:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:53,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 7667 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 14:58:53,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-12-14 14:58:53,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:53,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355823372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:53,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:58:53,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2022-12-14 14:58:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020740515] [2022-12-14 14:58:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:53,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:58:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:58:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:58:53,548 INFO L87 Difference]: Start difference. First operand 328433 states and 473252 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:59:09,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:09,638 INFO L93 Difference]: Finished difference Result 370438 states and 535353 transitions. [2022-12-14 14:59:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:59:09,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 214 [2022-12-14 14:59:09,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:10,891 INFO L225 Difference]: With dead ends: 370438 [2022-12-14 14:59:10,891 INFO L226 Difference]: Without dead ends: 370433 [2022-12-14 14:59:11,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-12-14 14:59:11,012 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 1117 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:11,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 3099 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 14:59:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370433 states. [2022-12-14 14:59:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370433 to 361321. [2022-12-14 14:59:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361321 states, 249490 states have (on average 1.330394003767686) internal successors, (331920), 253865 states have internal predecessors, (331920), 87296 states have call successors, (87296), 22587 states have call predecessors, (87296), 24534 states have return successors, (101166), 88108 states have call predecessors, (101166), 87294 states have call successors, (101166) [2022-12-14 14:59:29,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361321 states to 361321 states and 520382 transitions. [2022-12-14 14:59:29,150 INFO L78 Accepts]: Start accepts. Automaton has 361321 states and 520382 transitions. Word has length 214 [2022-12-14 14:59:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:29,150 INFO L495 AbstractCegarLoop]: Abstraction has 361321 states and 520382 transitions. [2022-12-14 14:59:29,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:59:29,150 INFO L276 IsEmpty]: Start isEmpty. Operand 361321 states and 520382 transitions. [2022-12-14 14:59:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 14:59:29,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:29,307 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:59:29,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:59:29,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 14:59:29,509 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:59:29,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1741795869, now seen corresponding path program 1 times [2022-12-14 14:59:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:29,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490702628] [2022-12-14 14:59:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:29,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:29,664 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:59:29,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137870680] [2022-12-14 14:59:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:29,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:59:29,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:59:29,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:59:29,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:59:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:30,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 8056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:59:30,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:59:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-12-14 14:59:30,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:59:30,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490702628] [2022-12-14 14:59:30,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:59:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137870680] [2022-12-14 14:59:30,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137870680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:30,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:30,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:59:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739075372] [2022-12-14 14:59:30,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:30,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:59:30,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:30,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:59:30,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:59:30,858 INFO L87 Difference]: Start difference. First operand 361321 states and 520382 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 14:59:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:49,295 INFO L93 Difference]: Finished difference Result 751465 states and 1091769 transitions. [2022-12-14 14:59:49,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:59:49,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 230 [2022-12-14 14:59:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:50,875 INFO L225 Difference]: With dead ends: 751465 [2022-12-14 14:59:50,875 INFO L226 Difference]: Without dead ends: 390153 [2022-12-14 14:59:51,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:59:51,997 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 33 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:51,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1781 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:59:52,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390153 states. [2022-12-14 15:00:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390153 to 366537. [2022-12-14 15:00:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366537 states, 253490 states have (on average 1.3336384078267387) internal successors, (338064), 257833 states have internal predecessors, (338064), 88512 states have call successors, (88512), 22587 states have call predecessors, (88512), 24534 states have return successors, (102542), 89356 states have call predecessors, (102542), 88510 states have call successors, (102542) [2022-12-14 15:00:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366537 states to 366537 states and 529118 transitions. [2022-12-14 15:00:11,117 INFO L78 Accepts]: Start accepts. Automaton has 366537 states and 529118 transitions. Word has length 230 [2022-12-14 15:00:11,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:11,117 INFO L495 AbstractCegarLoop]: Abstraction has 366537 states and 529118 transitions. [2022-12-14 15:00:11,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:00:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 366537 states and 529118 transitions. [2022-12-14 15:00:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-14 15:00:11,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:11,144 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:11,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:00:11,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 15:00:11,346 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:00:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash 935031284, now seen corresponding path program 1 times [2022-12-14 15:00:11,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:11,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084373474] [2022-12-14 15:00:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:11,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:00:11,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242003689] [2022-12-14 15:00:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:11,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:00:11,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:00:11,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:00:11,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f125d-8343-4ee2-8d37-ca2eb15e9db6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:00:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:12,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 8070 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:00:12,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:00:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-12-14 15:00:12,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:00:12,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:12,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084373474] [2022-12-14 15:00:12,956 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:00:12,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242003689] [2022-12-14 15:00:12,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242003689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:12,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:12,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:00:12,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446011364] [2022-12-14 15:00:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:12,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:00:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:12,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:00:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:12,957 INFO L87 Difference]: Start difference. First operand 366537 states and 529118 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (30), 4 states have call predecessors, (30), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 15:00:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:45,231 INFO L93 Difference]: Finished difference Result 1097289 states and 1594912 transitions. [2022-12-14 15:00:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:00:45,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (30), 4 states have call predecessors, (30), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2022-12-14 15:00:45,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:47,905 INFO L225 Difference]: With dead ends: 1097289 [2022-12-14 15:00:47,905 INFO L226 Difference]: Without dead ends: 730761 [2022-12-14 15:00:49,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:00:49,133 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 870 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:49,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3336 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:00:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730761 states.