./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:50:03,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:50:03,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:50:03,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:50:03,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:50:03,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:50:03,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:50:03,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:50:03,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:50:03,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:50:03,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:50:03,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:50:03,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:50:03,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:50:03,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:50:03,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:50:03,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:50:03,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:50:03,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:50:03,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:50:03,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:50:03,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:50:03,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:50:03,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:50:03,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:50:03,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:50:03,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:50:03,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:50:03,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:50:03,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:50:03,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:50:03,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:50:03,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:50:03,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:50:03,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:50:03,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:50:03,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:50:03,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:50:03,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:50:03,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:50:03,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:50:03,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:50:03,724 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:50:03,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:50:03,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:50:03,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:50:03,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:50:03,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:50:03,727 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:50:03,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:50:03,727 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:50:03,728 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:50:03,729 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:50:03,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:50:03,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:50:03,730 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:50:03,730 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:50:03,730 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:50:03,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:50:03,731 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:50:03,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:50:03,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:50:03,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:50:03,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:50:03,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:50:03,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:50:03,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:50:03,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:50:03,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:50:03,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:50:03,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:50:03,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:03,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:50:03,735 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:50:03,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:50:03,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:50:03,736 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:50:03,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:50:03,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:50:03,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:50:03,737 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_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2022-11-26 00:50:04,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:50:04,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:50:04,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:50:04,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:50:04,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:50:04,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-11-26 00:50:07,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:50:07,898 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:50:07,899 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-11-26 00:50:07,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/data/1c98ee1a3/4ed7ba0799f145a28382151f4efacdde/FLAGba17f5d08 [2022-11-26 00:50:08,429 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/data/1c98ee1a3/4ed7ba0799f145a28382151f4efacdde [2022-11-26 00:50:08,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:50:08,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:50:08,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:08,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:50:08,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:50:08,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:08" (1/1) ... [2022-11-26 00:50:08,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12550659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:08, skipping insertion in model container [2022-11-26 00:50:08,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:08" (1/1) ... [2022-11-26 00:50:08,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:50:08,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:50:09,178 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:50:09,345 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:09,346 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:09,347 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:09,350 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:09,359 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:09,360 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:09,485 WARN L623 FunctionHandler]: Unknown extern function pi_read_regr [2022-11-26 00:50:09,492 WARN L623 FunctionHandler]: Unknown extern function pi_read_regr [2022-11-26 00:50:09,500 WARN L623 FunctionHandler]: Unknown extern function pi_write_regr [2022-11-26 00:50:09,506 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,525 WARN L623 FunctionHandler]: Unknown extern function pi_connect [2022-11-26 00:50:09,535 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,538 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,540 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,541 WARN L623 FunctionHandler]: Unknown extern function pi_write_block [2022-11-26 00:50:09,549 WARN L623 FunctionHandler]: Unknown extern function pi_read_block [2022-11-26 00:50:09,550 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,566 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,566 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,576 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,577 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,602 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:50:09,608 WARN L623 FunctionHandler]: Unknown extern function pi_connect [2022-11-26 00:50:09,614 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,619 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,627 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,727 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,738 WARN L623 FunctionHandler]: Unknown extern function pi_init [2022-11-26 00:50:09,740 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:09,741 WARN L623 FunctionHandler]: Unknown extern function pi_init [2022-11-26 00:50:09,747 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:09,748 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:09,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:09,749 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:09,760 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,760 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:09,767 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_cur [2022-11-26 00:50:09,772 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-11-26 00:50:09,784 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,786 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,791 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:09,796 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:09,798 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,798 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,800 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,801 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,801 WARN L623 FunctionHandler]: Unknown extern function pi_read_block [2022-11-26 00:50:09,802 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,805 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,805 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,806 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,811 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,812 WARN L623 FunctionHandler]: Unknown extern function pi_write_block [2022-11-26 00:50:09,815 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,816 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:09,817 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:09,843 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:50:09,844 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:09,845 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:50:09,846 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:50:09,846 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:09,847 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:50:09,848 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:50:09,852 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:50:09,853 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:50:09,853 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:09,853 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:09,854 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:50:09,866 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,866 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,867 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,867 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,867 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,868 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:50:09,869 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,869 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,869 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,870 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,870 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,871 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:09,871 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,872 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:09,877 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_fa4446ba-c387-4b41-a847-346dc42fb5f0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-11-26 00:50:09,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:09,992 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:50:10,080 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:50:10,098 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:10,099 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:10,099 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:10,100 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:10,102 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:10,102 WARN L623 FunctionHandler]: Unknown extern function schedule_delayed_work [2022-11-26 00:50:10,119 WARN L623 FunctionHandler]: Unknown extern function pi_read_regr [2022-11-26 00:50:10,120 WARN L623 FunctionHandler]: Unknown extern function pi_read_regr [2022-11-26 00:50:10,120 WARN L623 FunctionHandler]: Unknown extern function pi_write_regr [2022-11-26 00:50:10,121 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,123 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,124 WARN L623 FunctionHandler]: Unknown extern function pi_connect [2022-11-26 00:50:10,124 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,126 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,127 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,128 WARN L623 FunctionHandler]: Unknown extern function pi_write_block [2022-11-26 00:50:10,132 WARN L623 FunctionHandler]: Unknown extern function pi_read_block [2022-11-26 00:50:10,132 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,138 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,138 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,142 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,142 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,154 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:50:10,155 WARN L623 FunctionHandler]: Unknown extern function pi_connect [2022-11-26 00:50:10,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,161 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,206 WARN L623 FunctionHandler]: Unknown extern function pi_init [2022-11-26 00:50:10,207 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:10,208 WARN L623 FunctionHandler]: Unknown extern function pi_init [2022-11-26 00:50:10,209 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:10,209 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:10,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:50:10,210 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:10,218 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,218 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:50:10,219 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_cur [2022-11-26 00:50:10,220 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-11-26 00:50:10,221 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,222 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,223 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:10,224 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:50:10,224 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,225 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,226 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,226 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,226 WARN L623 FunctionHandler]: Unknown extern function pi_read_block [2022-11-26 00:50:10,229 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,231 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,231 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,232 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,233 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,233 WARN L623 FunctionHandler]: Unknown extern function pi_write_block [2022-11-26 00:50:10,234 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,235 WARN L623 FunctionHandler]: Unknown extern function pi_do_claimed [2022-11-26 00:50:10,237 WARN L623 FunctionHandler]: Unknown extern function pi_disconnect [2022-11-26 00:50:10,238 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:50:10,238 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:10,239 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:50:10,244 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:50:10,245 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:10,246 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:50:10,252 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:50:10,254 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:50:10,254 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:50:10,254 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:50:10,255 WARN L623 FunctionHandler]: Unknown extern function pi_release [2022-11-26 00:50:10,255 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:50:10,258 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,258 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,259 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,259 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,259 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,260 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:50:10,260 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,260 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,261 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,261 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,262 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,262 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:50:10,263 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,263 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:50:10,263 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_fa4446ba-c387-4b41-a847-346dc42fb5f0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-11-26 00:50:10,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:10,389 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:50:10,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10 WrapperNode [2022-11-26 00:50:10,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:10,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:10,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:50:10,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:50:10,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,503 INFO L138 Inliner]: procedures = 161, calls = 831, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1123 [2022-11-26 00:50:10,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:10,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:50:10,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:50:10,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:50:10,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,617 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:50:10,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:50:10,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:50:10,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:50:10,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (1/1) ... [2022-11-26 00:50:10,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:10,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:10,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:50:10,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:50:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-11-26 00:50:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-11-26 00:50:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2022-11-26 00:50:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2022-11-26 00:50:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-11-26 00:50:10,745 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-11-26 00:50:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-11-26 00:50:10,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-11-26 00:50:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-11-26 00:50:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-11-26 00:50:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:50:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2022-11-26 00:50:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2022-11-26 00:50:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2022-11-26 00:50:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2022-11-26 00:50:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:50:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-11-26 00:50:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-11-26 00:50:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2022-11-26 00:50:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2022-11-26 00:50:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-11-26 00:50:10,748 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-11-26 00:50:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:50:10,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:50:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2022-11-26 00:50:10,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2022-11-26 00:50:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2022-11-26 00:50:10,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2022-11-26 00:50:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-26 00:50:10,750 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-26 00:50:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:50:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-26 00:50:10,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-26 00:50:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 00:50:10,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 00:50:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-26 00:50:10,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-26 00:50:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2022-11-26 00:50:10,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2022-11-26 00:50:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2022-11-26 00:50:10,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2022-11-26 00:50:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:50:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-26 00:50:10,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-26 00:50:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:50:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:50:10,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:50:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:50:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:50:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2022-11-26 00:50:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2022-11-26 00:50:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2022-11-26 00:50:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2022-11-26 00:50:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2022-11-26 00:50:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2022-11-26 00:50:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:50:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2022-11-26 00:50:10,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2022-11-26 00:50:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2022-11-26 00:50:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2022-11-26 00:50:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2022-11-26 00:50:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2022-11-26 00:50:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-11-26 00:50:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-11-26 00:50:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:50:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:50:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-11-26 00:50:10,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-11-26 00:50:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-11-26 00:50:10,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-11-26 00:50:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-11-26 00:50:10,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-11-26 00:50:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-26 00:50:10,772 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-26 00:50:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-26 00:50:10,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-26 00:50:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2022-11-26 00:50:10,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2022-11-26 00:50:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:50:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2022-11-26 00:50:10,774 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2022-11-26 00:50:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:50:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:50:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-11-26 00:50:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-11-26 00:50:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2022-11-26 00:50:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2022-11-26 00:50:11,263 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:50:11,266 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:50:14,836 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:50:15,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:50:15,249 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:50:15,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:15 BoogieIcfgContainer [2022-11-26 00:50:15,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:50:15,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:50:15,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:50:15,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:50:15,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:50:08" (1/3) ... [2022-11-26 00:50:15,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a52ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:15, skipping insertion in model container [2022-11-26 00:50:15,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:10" (2/3) ... [2022-11-26 00:50:15,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a52ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:15, skipping insertion in model container [2022-11-26 00:50:15,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:15" (3/3) ... [2022-11-26 00:50:15,263 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-11-26 00:50:15,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:50:15,285 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:50:15,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:50:15,356 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;@dea1d9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:50:15,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:50:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 250 states have (on average 1.38) internal successors, (345), 264 states have internal predecessors, (345), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-26 00:50:15,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:50:15,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:15,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:15,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2109278676, now seen corresponding path program 1 times [2022-11-26 00:50:15,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:15,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761397247] [2022-11-26 00:50:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:15,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:15,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761397247] [2022-11-26 00:50:15,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761397247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:15,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:15,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:50:15,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892504730] [2022-11-26 00:50:15,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:15,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:15,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:16,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:16,014 INFO L87 Difference]: Start difference. First operand has 399 states, 250 states have (on average 1.38) internal successors, (345), 264 states have internal predecessors, (345), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:17,266 INFO L93 Difference]: Finished difference Result 1090 states and 1591 transitions. [2022-11-26 00:50:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-26 00:50:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:17,293 INFO L225 Difference]: With dead ends: 1090 [2022-11-26 00:50:17,293 INFO L226 Difference]: Without dead ends: 688 [2022-11-26 00:50:17,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:17,312 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 411 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:17,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1142 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:50:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-26 00:50:17,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 675. [2022-11-26 00:50:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 423 states have (on average 1.3593380614657211) internal successors, (575), 436 states have internal predecessors, (575), 187 states have call successors, (187), 65 states have call predecessors, (187), 64 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2022-11-26 00:50:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 943 transitions. [2022-11-26 00:50:17,441 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 943 transitions. Word has length 14 [2022-11-26 00:50:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:17,442 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 943 transitions. [2022-11-26 00:50:17,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 943 transitions. [2022-11-26 00:50:17,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:50:17,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:17,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:17,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:50:17,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:17,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:17,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1855920781, now seen corresponding path program 1 times [2022-11-26 00:50:17,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:17,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518595043] [2022-11-26 00:50:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:17,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:17,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:17,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518595043] [2022-11-26 00:50:17,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518595043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:17,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:17,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:50:17,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472903076] [2022-11-26 00:50:17,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:17,562 INFO L87 Difference]: Start difference. First operand 675 states and 943 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:18,279 INFO L93 Difference]: Finished difference Result 1349 states and 1885 transitions. [2022-11-26 00:50:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-26 00:50:18,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:18,285 INFO L225 Difference]: With dead ends: 1349 [2022-11-26 00:50:18,285 INFO L226 Difference]: Without dead ends: 675 [2022-11-26 00:50:18,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:18,289 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 538 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:18,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 475 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:50:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-26 00:50:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2022-11-26 00:50:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 423 states have (on average 1.3546099290780143) internal successors, (573), 436 states have internal predecessors, (573), 187 states have call successors, (187), 65 states have call predecessors, (187), 64 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2022-11-26 00:50:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 941 transitions. [2022-11-26 00:50:18,345 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 941 transitions. Word has length 15 [2022-11-26 00:50:18,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:18,346 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 941 transitions. [2022-11-26 00:50:18,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 941 transitions. [2022-11-26 00:50:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:50:18,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:18,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:18,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:50:18,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:18,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:18,348 INFO L85 PathProgramCache]: Analyzing trace with hash 164374478, now seen corresponding path program 1 times [2022-11-26 00:50:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:18,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397918300] [2022-11-26 00:50:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:18,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:18,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397918300] [2022-11-26 00:50:18,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397918300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:18,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:18,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068360542] [2022-11-26 00:50:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:18,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:18,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:18,498 INFO L87 Difference]: Start difference. First operand 675 states and 941 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:19,229 INFO L93 Difference]: Finished difference Result 1520 states and 2098 transitions. [2022-11-26 00:50:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:19,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-26 00:50:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:19,234 INFO L225 Difference]: With dead ends: 1520 [2022-11-26 00:50:19,235 INFO L226 Difference]: Without dead ends: 846 [2022-11-26 00:50:19,237 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 [2022-11-26 00:50:19,238 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 375 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:19,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 964 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:50:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-11-26 00:50:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 564. [2022-11-26 00:50:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 347 states have (on average 1.340057636887608) internal successors, (465), 359 states have internal predecessors, (465), 157 states have call successors, (157), 60 states have call predecessors, (157), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-11-26 00:50:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 773 transitions. [2022-11-26 00:50:19,286 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 773 transitions. Word has length 16 [2022-11-26 00:50:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:19,286 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 773 transitions. [2022-11-26 00:50:19,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:19,287 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 773 transitions. [2022-11-26 00:50:19,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:50:19,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:19,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:19,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:50:19,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 412987080, now seen corresponding path program 1 times [2022-11-26 00:50:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:19,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218731067] [2022-11-26 00:50:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:19,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:19,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:19,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218731067] [2022-11-26 00:50:19,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218731067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:19,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:19,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:19,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132987972] [2022-11-26 00:50:19,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:19,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:19,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:19,405 INFO L87 Difference]: Start difference. First operand 564 states and 773 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:20,199 INFO L93 Difference]: Finished difference Result 1125 states and 1543 transitions. [2022-11-26 00:50:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-26 00:50:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:20,203 INFO L225 Difference]: With dead ends: 1125 [2022-11-26 00:50:20,204 INFO L226 Difference]: Without dead ends: 571 [2022-11-26 00:50:20,206 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 [2022-11-26 00:50:20,207 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 9 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:20,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 945 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:50:20,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-26 00:50:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2022-11-26 00:50:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 348 states have (on average 1.339080459770115) internal successors, (466), 360 states have internal predecessors, (466), 157 states have call successors, (157), 60 states have call predecessors, (157), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-11-26 00:50:20,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 774 transitions. [2022-11-26 00:50:20,244 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 774 transitions. Word has length 21 [2022-11-26 00:50:20,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:20,244 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 774 transitions. [2022-11-26 00:50:20,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 774 transitions. [2022-11-26 00:50:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:50:20,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:20,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:50:20,246 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2137308234, now seen corresponding path program 1 times [2022-11-26 00:50:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956320480] [2022-11-26 00:50:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:20,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:20,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956320480] [2022-11-26 00:50:20,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956320480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:20,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805460502] [2022-11-26 00:50:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:20,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:20,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:20,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:20,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:50:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:20,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:50:20,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:20,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:20,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805460502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:20,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:20,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:50:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189990512] [2022-11-26 00:50:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:20,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:20,803 INFO L87 Difference]: Start difference. First operand 565 states and 774 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:21,648 INFO L93 Difference]: Finished difference Result 1137 states and 1562 transitions. [2022-11-26 00:50:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:50:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:21,653 INFO L225 Difference]: With dead ends: 1137 [2022-11-26 00:50:21,654 INFO L226 Difference]: Without dead ends: 582 [2022-11-26 00:50:21,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:21,660 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 14 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:21,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 952 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:50:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-11-26 00:50:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 567. [2022-11-26 00:50:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 350 states have (on average 1.3371428571428572) internal successors, (468), 362 states have internal predecessors, (468), 157 states have call successors, (157), 60 states have call predecessors, (157), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-11-26 00:50:21,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 776 transitions. [2022-11-26 00:50:21,711 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 776 transitions. Word has length 24 [2022-11-26 00:50:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:21,712 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 776 transitions. [2022-11-26 00:50:21,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 776 transitions. [2022-11-26 00:50:21,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:50:21,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:21,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:21,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:21,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:21,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1039996058, now seen corresponding path program 1 times [2022-11-26 00:50:21,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:21,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757596745] [2022-11-26 00:50:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:21,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:22,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757596745] [2022-11-26 00:50:22,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757596745] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204262069] [2022-11-26 00:50:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:22,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:22,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:22,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:22,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:50:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:22,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:22,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:50:22,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:22,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204262069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:22,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:22,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:50:22,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557404749] [2022-11-26 00:50:22,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:22,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:22,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:22,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:22,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:22,560 INFO L87 Difference]: Start difference. First operand 567 states and 776 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:23,587 INFO L93 Difference]: Finished difference Result 1657 states and 2262 transitions. [2022-11-26 00:50:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-26 00:50:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:23,594 INFO L225 Difference]: With dead ends: 1657 [2022-11-26 00:50:23,594 INFO L226 Difference]: Without dead ends: 1100 [2022-11-26 00:50:23,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:23,597 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 515 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:23,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1033 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:50:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-11-26 00:50:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 783. [2022-11-26 00:50:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 479 states have (on average 1.3194154488517744) internal successors, (632), 494 states have internal predecessors, (632), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2022-11-26 00:50:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1064 transitions. [2022-11-26 00:50:23,659 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1064 transitions. Word has length 27 [2022-11-26 00:50:23,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:23,660 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1064 transitions. [2022-11-26 00:50:23,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1064 transitions. [2022-11-26 00:50:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-26 00:50:23,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:23,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:23,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:50:23,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:50:23,868 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash 480786357, now seen corresponding path program 1 times [2022-11-26 00:50:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:23,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791884367] [2022-11-26 00:50:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:23,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:24,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:24,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791884367] [2022-11-26 00:50:24,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791884367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:24,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978279756] [2022-11-26 00:50:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:24,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:24,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:24,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:24,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:50:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:24,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:24,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:24,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:24,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978279756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:24,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:24,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:50:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003318855] [2022-11-26 00:50:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:24,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:24,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:24,452 INFO L87 Difference]: Start difference. First operand 783 states and 1064 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:25,366 INFO L93 Difference]: Finished difference Result 1688 states and 2333 transitions. [2022-11-26 00:50:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:25,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-26 00:50:25,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:25,372 INFO L225 Difference]: With dead ends: 1688 [2022-11-26 00:50:25,372 INFO L226 Difference]: Without dead ends: 915 [2022-11-26 00:50:25,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:25,376 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 138 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:25,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 986 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:50:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-26 00:50:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 798. [2022-11-26 00:50:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 490 states have (on average 1.3224489795918368) internal successors, (648), 505 states have internal predecessors, (648), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-26 00:50:25,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1088 transitions. [2022-11-26 00:50:25,432 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1088 transitions. Word has length 28 [2022-11-26 00:50:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:25,432 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1088 transitions. [2022-11-26 00:50:25,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1088 transitions. [2022-11-26 00:50:25,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-26 00:50:25,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:25,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:25,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:25,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:25,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash 460886388, now seen corresponding path program 1 times [2022-11-26 00:50:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:25,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352653765] [2022-11-26 00:50:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:25,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:25,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352653765] [2022-11-26 00:50:25,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352653765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:25,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608493858] [2022-11-26 00:50:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:25,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:25,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:25,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:25,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:50:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:26,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:26,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:50:26,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:26,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608493858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:26,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:26,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:50:26,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479514997] [2022-11-26 00:50:26,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:26,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:26,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:26,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:26,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:26,253 INFO L87 Difference]: Start difference. First operand 798 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:26,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:26,687 INFO L93 Difference]: Finished difference Result 800 states and 1089 transitions. [2022-11-26 00:50:26,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:26,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-11-26 00:50:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:26,693 INFO L225 Difference]: With dead ends: 800 [2022-11-26 00:50:26,693 INFO L226 Difference]: Without dead ends: 797 [2022-11-26 00:50:26,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:26,694 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 513 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:26,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 473 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:50:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-11-26 00:50:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-11-26 00:50:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 490 states have (on average 1.3204081632653062) internal successors, (647), 504 states have internal predecessors, (647), 222 states have call successors, (222), 85 states have call predecessors, (222), 84 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-26 00:50:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1086 transitions. [2022-11-26 00:50:26,769 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1086 transitions. Word has length 34 [2022-11-26 00:50:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:26,770 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1086 transitions. [2022-11-26 00:50:26,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1086 transitions. [2022-11-26 00:50:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-26 00:50:26,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:26,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:26,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:26,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:26,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:26,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1402275434, now seen corresponding path program 1 times [2022-11-26 00:50:26,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:26,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277016605] [2022-11-26 00:50:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:26,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:27,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:27,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277016605] [2022-11-26 00:50:27,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277016605] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:27,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303157654] [2022-11-26 00:50:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:27,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:27,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:27,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:27,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:50:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:27,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:27,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:50:27,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:27,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303157654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:27,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:27,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:50:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965833394] [2022-11-26 00:50:27,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:27,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:27,553 INFO L87 Difference]: Start difference. First operand 797 states and 1086 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:28,122 INFO L93 Difference]: Finished difference Result 799 states and 1087 transitions. [2022-11-26 00:50:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-26 00:50:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:28,127 INFO L225 Difference]: With dead ends: 799 [2022-11-26 00:50:28,127 INFO L226 Difference]: Without dead ends: 796 [2022-11-26 00:50:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:28,129 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 510 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 471 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:50:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-11-26 00:50:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2022-11-26 00:50:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 490 states have (on average 1.3183673469387756) internal successors, (646), 503 states have internal predecessors, (646), 221 states have call successors, (221), 85 states have call predecessors, (221), 84 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-26 00:50:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1084 transitions. [2022-11-26 00:50:28,250 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1084 transitions. Word has length 35 [2022-11-26 00:50:28,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:28,251 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1084 transitions. [2022-11-26 00:50:28,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1084 transitions. [2022-11-26 00:50:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-26 00:50:28,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:28,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:28,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:28,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:28,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash 520569655, now seen corresponding path program 1 times [2022-11-26 00:50:28,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:28,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638991567] [2022-11-26 00:50:28,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:28,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:28,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:28,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638991567] [2022-11-26 00:50:28,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638991567] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:28,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755566967] [2022-11-26 00:50:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:28,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:28,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:50:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:28,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:28,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:50:29,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:29,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755566967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:29,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:29,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:50:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178277037] [2022-11-26 00:50:29,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:29,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:29,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:29,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:29,042 INFO L87 Difference]: Start difference. First operand 796 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:29,459 INFO L93 Difference]: Finished difference Result 798 states and 1085 transitions. [2022-11-26 00:50:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-11-26 00:50:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:29,464 INFO L225 Difference]: With dead ends: 798 [2022-11-26 00:50:29,465 INFO L226 Difference]: Without dead ends: 795 [2022-11-26 00:50:29,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:29,466 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 507 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:29,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 469 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:50:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-11-26 00:50:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2022-11-26 00:50:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 490 states have (on average 1.316326530612245) internal successors, (645), 502 states have internal predecessors, (645), 220 states have call successors, (220), 85 states have call predecessors, (220), 84 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-26 00:50:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1082 transitions. [2022-11-26 00:50:29,564 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1082 transitions. Word has length 36 [2022-11-26 00:50:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:29,566 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1082 transitions. [2022-11-26 00:50:29,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1082 transitions. [2022-11-26 00:50:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-26 00:50:29,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:29,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:29,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:29,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:29,776 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1042500851, now seen corresponding path program 1 times [2022-11-26 00:50:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:29,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295624683] [2022-11-26 00:50:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:29,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:29,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295624683] [2022-11-26 00:50:29,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295624683] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:29,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436069049] [2022-11-26 00:50:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:29,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:29,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:29,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:29,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:50:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:30,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:30,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:50:30,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:30,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436069049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:30,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:50:30,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:50:30,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258064583] [2022-11-26 00:50:30,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:30,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:30,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:30,370 INFO L87 Difference]: Start difference. First operand 795 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:31,141 INFO L93 Difference]: Finished difference Result 799 states and 1084 transitions. [2022-11-26 00:50:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-26 00:50:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:31,148 INFO L225 Difference]: With dead ends: 799 [2022-11-26 00:50:31,149 INFO L226 Difference]: Without dead ends: 775 [2022-11-26 00:50:31,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:31,150 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 450 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:31,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 846 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:50:31,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-11-26 00:50:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2022-11-26 00:50:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 477 states have (on average 1.3123689727463312) internal successors, (626), 487 states have internal predecessors, (626), 215 states have call successors, (215), 83 states have call predecessors, (215), 82 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2022-11-26 00:50:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1055 transitions. [2022-11-26 00:50:31,221 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1055 transitions. Word has length 37 [2022-11-26 00:50:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:31,222 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1055 transitions. [2022-11-26 00:50:31,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:50:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1055 transitions. [2022-11-26 00:50:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-26 00:50:31,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:31,224 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:50:31,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:31,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-26 00:50:31,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:31,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2044125463, now seen corresponding path program 1 times [2022-11-26 00:50:31,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:31,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135148340] [2022-11-26 00:50:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:31,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:31,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:31,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135148340] [2022-11-26 00:50:31,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135148340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:50:31,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196176896] [2022-11-26 00:50:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:31,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:50:31,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:31,664 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:50:31,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:50:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:32,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:50:32,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:32,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:50:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:50:32,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196176896] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:50:32,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [123984902] [2022-11-26 00:50:32,159 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2022-11-26 00:50:32,160 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:50:32,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:50:32,169 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:50:32,169 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:50:33,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 402 treesize of output 338 [2022-11-26 00:50:33,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 374 [2022-11-26 00:50:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:34,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 231 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 1079 treesize of output 922 [2022-11-26 00:50:43,276 INFO L321 Elim1Store]: treesize reduction 600, result has 47.4 percent of original size [2022-11-26 00:50:43,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1771 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 60 case distinctions, treesize of input 307 treesize of output 726 [2022-11-26 00:50:44,278 INFO L217 Elim1Store]: Index analysis took 159 ms [2022-11-26 00:50:47,609 INFO L321 Elim1Store]: treesize reduction 1080, result has 33.4 percent of original size [2022-11-26 00:50:47,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1831 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 120 case distinctions, treesize of input 317 treesize of output 737 [2022-11-26 00:50:59,930 INFO L321 Elim1Store]: treesize reduction 1330, result has 18.9 percent of original size [2022-11-26 00:50:59,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 61 select indices, 61 select index equivalence classes, 1771 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 121 case distinctions, treesize of input 6263 treesize of output 6329 [2022-11-26 00:51:01,374 INFO L217 Elim1Store]: Index analysis took 126 ms [2022-11-26 00:51:04,701 INFO L321 Elim1Store]: treesize reduction 1818, result has 14.9 percent of original size [2022-11-26 00:51:04,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1831 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 183 case distinctions, treesize of input 6266 treesize of output 6339 [2022-11-26 00:51:39,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:51:39,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:51:56,199 INFO L321 Elim1Store]: treesize reduction 1080, result has 33.4 percent of original size [2022-11-26 00:51:56,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1831 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 120 case distinctions, treesize of input 317 treesize of output 737 [2022-11-26 00:51:57,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1831 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 486 [2022-11-26 00:52:08,588 INFO L321 Elim1Store]: treesize reduction 1330, result has 18.9 percent of original size [2022-11-26 00:52:08,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 61 select indices, 61 select index equivalence classes, 1771 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 121 case distinctions, treesize of input 6263 treesize of output 6329 [2022-11-26 00:52:09,855 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-26 00:52:13,042 INFO L321 Elim1Store]: treesize reduction 1818, result has 14.9 percent of original size [2022-11-26 00:52:13,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1831 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 183 case distinctions, treesize of input 6266 treesize of output 6339 [2022-11-26 00:52:43,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:52:43,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:52:44,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:52:44,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:52:55,656 INFO L197 IcfgInterpreter]: Interpreting procedure put_disk with input of size 178 for LOIs [2022-11-26 00:52:55,671 INFO L197 IcfgInterpreter]: Interpreting procedure pi_init with input of size 224 for LOIs [2022-11-26 00:52:55,702 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:53:06,129 WARN L233 SmtUtils]: Spent 10.34s on a formula simplification that was a NOOP. DAG size: 1222 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:53:16,900 WARN L233 SmtUtils]: Spent 10.63s on a formula simplification that was a NOOP. DAG size: 1235 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:53:27,684 WARN L233 SmtUtils]: Spent 10.59s on a formula simplification that was a NOOP. DAG size: 1237 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:53:38,427 WARN L233 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 1225 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:53:49,405 WARN L233 SmtUtils]: Spent 10.73s on a formula simplification that was a NOOP. DAG size: 1238 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:54:00,526 WARN L233 SmtUtils]: Spent 10.84s on a formula simplification that was a NOOP. DAG size: 1240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:54:11,457 WARN L233 SmtUtils]: Spent 10.60s on a formula simplification that was a NOOP. DAG size: 1228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:54:52,669 WARN L233 SmtUtils]: Spent 10.37s on a formula simplification that was a NOOP. DAG size: 1225 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:54:52,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [123984902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:52,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:54:52,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2022-11-26 00:54:52,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962271921] [2022-11-26 00:54:52,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:52,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-26 00:54:52,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-26 00:54:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=914, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:54:52,680 INFO L87 Difference]: Start difference. First operand 775 states and 1055 transitions. Second operand has 28 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-26 00:55:16,453 WARN L233 SmtUtils]: Spent 22.31s on a formula simplification. DAG size of input: 1254 DAG size of output: 1241 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:55:38,853 WARN L233 SmtUtils]: Spent 21.94s on a formula simplification. DAG size of input: 1252 DAG size of output: 1249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:56:01,411 WARN L233 SmtUtils]: Spent 22.25s on a formula simplification. DAG size of input: 1255 DAG size of output: 1252 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:56:31,584 WARN L233 SmtUtils]: Spent 29.13s on a formula simplification. DAG size of input: 1402 DAG size of output: 1266 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:00,109 WARN L233 SmtUtils]: Spent 28.14s on a formula simplification. DAG size of input: 1362 DAG size of output: 1273 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:23,053 WARN L233 SmtUtils]: Spent 22.65s on a formula simplification. DAG size of input: 1265 DAG size of output: 1264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:47,296 WARN L233 SmtUtils]: Spent 23.93s on a formula simplification. DAG size of input: 1299 DAG size of output: 1298 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:58:11,374 WARN L233 SmtUtils]: Spent 23.66s on a formula simplification. DAG size of input: 1280 DAG size of output: 1265 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:58:36,913 WARN L233 SmtUtils]: Spent 25.19s on a formula simplification. DAG size of input: 1310 DAG size of output: 1262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:59:02,419 WARN L233 SmtUtils]: Spent 25.10s on a formula simplification. DAG size of input: 1306 DAG size of output: 1258 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:59:28,280 WARN L233 SmtUtils]: Spent 25.38s on a formula simplification. DAG size of input: 1311 DAG size of output: 1260 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:59:54,294 WARN L233 SmtUtils]: Spent 25.48s on a formula simplification. DAG size of input: 1322 DAG size of output: 1271 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:00:15,719 WARN L233 SmtUtils]: Spent 20.86s on a formula simplification. DAG size of input: 1229 DAG size of output: 1228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:00:38,696 WARN L233 SmtUtils]: Spent 21.85s on a formula simplification. DAG size of input: 1247 DAG size of output: 1246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:01:01,272 WARN L233 SmtUtils]: Spent 22.17s on a formula simplification. DAG size of input: 1258 DAG size of output: 1257 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:01:23,532 WARN L233 SmtUtils]: Spent 21.93s on a formula simplification. DAG size of input: 1250 DAG size of output: 1249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:01:46,339 WARN L233 SmtUtils]: Spent 22.32s on a formula simplification. DAG size of input: 1252 DAG size of output: 1251 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:02:09,725 WARN L233 SmtUtils]: Spent 22.76s on a formula simplification. DAG size of input: 1255 DAG size of output: 1254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:02:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:02:33,318 INFO L93 Difference]: Finished difference Result 1845 states and 2498 transitions. [2022-11-26 01:02:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-26 01:02:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2022-11-26 01:02:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:02:33,324 INFO L225 Difference]: With dead ends: 1845 [2022-11-26 01:02:33,325 INFO L226 Difference]: Without dead ends: 1067 [2022-11-26 01:02:33,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 548.5s TimeCoverageRelationStatistics Valid=369, Invalid=2181, Unknown=0, NotChecked=0, Total=2550 [2022-11-26 01:02:33,330 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 450 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:02:33,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2264 Invalid, 2284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2022-11-26 01:02:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-11-26 01:02:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1051. [2022-11-26 01:02:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 644 states have (on average 1.296583850931677) internal successors, (835), 658 states have internal predecessors, (835), 291 states have call successors, (291), 117 states have call predecessors, (291), 115 states have return successors, (290), 289 states have call predecessors, (290), 290 states have call successors, (290) [2022-11-26 01:02:33,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1416 transitions. [2022-11-26 01:02:33,839 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1416 transitions. Word has length 53 [2022-11-26 01:02:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:02:33,840 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 1416 transitions. [2022-11-26 01:02:33,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-26 01:02:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1416 transitions. [2022-11-26 01:02:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-26 01:02:33,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:33,843 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 01:02:33,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 01:02:34,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-26 01:02:34,051 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:02:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2036934751, now seen corresponding path program 1 times [2022-11-26 01:02:34,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:34,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834080930] [2022-11-26 01:02:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:34,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:02:34,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834080930] [2022-11-26 01:02:34,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834080930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:02:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908629696] [2022-11-26 01:02:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:34,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:02:34,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:34,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:02:34,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4446ba-c387-4b41-a847-346dc42fb5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 01:02:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:34,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 01:02:34,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:02:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:34,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:02:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:34,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908629696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:02:34,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1143766819] [2022-11-26 01:02:34,704 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-11-26 01:02:34,704 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:02:34,704 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:02:34,705 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:02:34,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:02:35,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 402 treesize of output 338 [2022-11-26 01:02:35,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:35,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 231 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 1079 treesize of output 922 [2022-11-26 01:02:36,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 374 [2022-11-26 01:02:44,316 INFO L321 Elim1Store]: treesize reduction 600, result has 47.4 percent of original size [2022-11-26 01:02:44,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1771 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 60 case distinctions, treesize of input 307 treesize of output 726 [2022-11-26 01:02:45,444 INFO L217 Elim1Store]: Index analysis took 155 ms [2022-11-26 01:02:48,740 INFO L321 Elim1Store]: treesize reduction 1080, result has 33.4 percent of original size [2022-11-26 01:02:48,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1831 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 120 case distinctions, treesize of input 317 treesize of output 737 [2022-11-26 01:03:00,493 INFO L321 Elim1Store]: treesize reduction 1330, result has 18.9 percent of original size [2022-11-26 01:03:00,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 61 select indices, 61 select index equivalence classes, 1771 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 121 case distinctions, treesize of input 6263 treesize of output 6329 [2022-11-26 01:03:01,862 INFO L217 Elim1Store]: Index analysis took 152 ms [2022-11-26 01:03:05,441 INFO L321 Elim1Store]: treesize reduction 1818, result has 14.9 percent of original size [2022-11-26 01:03:05,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1831 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 183 case distinctions, treesize of input 6266 treesize of output 6339 [2022-11-26 01:03:37,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:03:37,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:03:40,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 01:03:40,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 01:03:40,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-26 01:03:50,014 INFO L321 Elim1Store]: treesize reduction 1080, result has 33.4 percent of original size [2022-11-26 01:03:50,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1831 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 120 case distinctions, treesize of input 317 treesize of output 737 [2022-11-26 01:03:50,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1831 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 486