./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs --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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:21:19,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:21:19,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:21:19,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:21:19,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:21:19,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:21:19,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:21:19,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:21:19,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:21:19,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:21:19,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:21:19,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:21:19,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:21:19,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:21:19,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:21:19,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:21:19,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:21:19,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:21:19,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:21:19,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:21:19,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:21:19,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:21:19,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:21:19,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:21:19,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:21:19,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:21:19,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:21:19,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:21:19,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:21:19,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:21:19,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:21:19,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:21:19,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:21:19,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:21:19,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:21:19,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:21:19,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:21:19,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:21:19,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:21:19,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:21:19,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:21:19,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:21:19,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:21:19,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:21:19,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:21:19,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:21:19,613 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:21:19,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:21:19,613 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:21:19,614 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:21:19,614 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:21:19,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:21:19,615 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:21:19,615 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:21:19,615 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:21:19,616 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:21:19,616 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:21:19,616 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:21:19,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:21:19,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:21:19,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:21:19,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:21:19,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:21:19,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:21:19,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:21:19,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:21:19,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:21:19,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:21:19,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:21:19,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:21:19,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:19,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:21:19,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:21:19,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:21:19,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:21:19,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:21:19,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:21:19,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:21:19,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:21:19,623 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-19 13:21:19,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:21:20,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:21:20,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:21:20,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:21:20,009 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:21:20,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-19 13:21:20,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/0e50a80de/ab72ab50936d4f7696bbee137c40b809/FLAG9be5dbe5f [2021-11-19 13:21:21,253 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:21:21,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-19 13:21:21,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/0e50a80de/ab72ab50936d4f7696bbee137c40b809/FLAG9be5dbe5f [2021-11-19 13:21:21,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/0e50a80de/ab72ab50936d4f7696bbee137c40b809 [2021-11-19 13:21:21,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:21:21,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:21:21,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:21,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:21:21,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:21:21,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:21" (1/1) ... [2021-11-19 13:21:21,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44db910a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:21, skipping insertion in model container [2021-11-19 13:21:21,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:21" (1/1) ... [2021-11-19 13:21:21,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:21:21,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:22,914 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,371 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,500 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,522 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,550 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,581 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,664 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,760 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,762 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,770 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,805 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,806 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,807 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,830 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,843 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,850 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,968 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,974 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,993 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:23,995 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,015 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,017 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,018 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,019 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,061 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,062 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,063 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,064 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,065 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,071 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,073 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,079 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,082 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,083 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,084 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,085 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,086 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,088 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,252 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,259 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,265 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,266 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,275 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,278 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,279 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,285 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,326 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,336 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,348 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:24,423 WARN L230 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-19 13:21:24,510 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:24,547 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:21:24,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b163880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:24, skipping insertion in model container [2021-11-19 13:21:24,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:24,549 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:21:24,551 INFO L158 Benchmark]: Toolchain (without parser) took 3041.72ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 69.0MB in the beginning and 72.1MB in the end (delta: -3.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-19 13:21:24,552 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:21:24,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3036.77ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 68.8MB in the beginning and 72.1MB in the end (delta: -3.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-19 13:21:24,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3036.77ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 68.8MB in the beginning and 72.1MB in the end (delta: -3.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4022]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs --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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:21:27,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:21:27,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:21:27,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:21:27,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:21:27,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:21:27,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:21:27,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:21:27,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:21:27,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:21:27,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:21:27,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:21:27,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:21:27,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:21:27,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:21:27,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:21:27,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:21:27,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:21:27,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:21:27,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:21:27,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:21:27,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:21:27,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:21:27,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:21:27,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:21:27,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:21:27,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:21:27,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:21:27,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:21:27,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:21:27,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:21:27,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:21:27,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:21:27,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:21:27,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:21:27,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:21:27,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:21:27,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:21:27,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:21:27,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:21:27,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:21:27,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:21:27,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:21:27,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:21:27,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:21:27,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:21:27,388 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:21:27,388 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:21:27,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:21:27,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:21:27,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:21:27,389 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:21:27,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:21:27,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:21:27,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:21:27,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:21:27,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:21:27,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:21:27,394 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:21:27,394 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:21:27,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:21:27,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:21:27,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:21:27,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:21:27,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:21:27,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:21:27,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:27,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:21:27,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:21:27,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:21:27,397 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:21:27,397 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:21:27,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:21:27,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:21:27,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:21:27,398 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-19 13:21:27,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:21:27,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:21:27,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:21:27,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:21:27,868 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:21:27,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-19 13:21:27,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/15e10c585/72ed8c9e31674c0d80161c0c64565360/FLAGe08ab27d2 [2021-11-19 13:21:28,977 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:21:28,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-19 13:21:29,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/15e10c585/72ed8c9e31674c0d80161c0c64565360/FLAGe08ab27d2 [2021-11-19 13:21:29,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/data/15e10c585/72ed8c9e31674c0d80161c0c64565360 [2021-11-19 13:21:29,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:21:29,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:21:29,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:29,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:21:29,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:21:29,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:29" (1/1) ... [2021-11-19 13:21:29,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a629281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:29, skipping insertion in model container [2021-11-19 13:21:29,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:29" (1/1) ... [2021-11-19 13:21:29,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:21:29,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:32,716 WARN L230 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-19 13:21:32,770 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:32,816 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:21:32,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:33,328 WARN L230 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-19 13:21:33,343 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:33,377 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:21:34,005 WARN L230 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_2392ac18-f9ad-40a5-98bc-58e7a042d12c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-19 13:21:34,016 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:34,294 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:21:34,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34 WrapperNode [2021-11-19 13:21:34,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:34,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:34,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:21:34,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:21:34,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:34,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:34,674 INFO L137 Inliner]: procedures = 323, calls = 2428, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 3810 [2021-11-19 13:21:34,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:34,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:21:34,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:21:34,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:21:34,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:34,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:34,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:34,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:35,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:35,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:35,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:35,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:21:35,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:21:35,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:21:35,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:21:35,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (1/1) ... [2021-11-19 13:21:35,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:21:35,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:21:35,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:21:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 13:21:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 13:21:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 13:21:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 13:21:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2021-11-19 13:21:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2021-11-19 13:21:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:21:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2021-11-19 13:21:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2021-11-19 13:21:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-19 13:21:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-19 13:21:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2021-11-19 13:21:35,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2021-11-19 13:21:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2021-11-19 13:21:35,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2021-11-19 13:21:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:21:35,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:21:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2021-11-19 13:21:35,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2021-11-19 13:21:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-19 13:21:35,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-19 13:21:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2021-11-19 13:21:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2021-11-19 13:21:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2021-11-19 13:21:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2021-11-19 13:21:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-11-19 13:21:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-11-19 13:21:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:21:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:21:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2021-11-19 13:21:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2021-11-19 13:21:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-19 13:21:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-19 13:21:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-19 13:21:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-19 13:21:35,295 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:21:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:21:35,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:21:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:21:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2021-11-19 13:21:35,296 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2021-11-19 13:21:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-11-19 13:21:35,296 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-11-19 13:21:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:21:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:21:35,297 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2021-11-19 13:21:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2021-11-19 13:21:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2021-11-19 13:21:35,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2021-11-19 13:21:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 13:21:35,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 13:21:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2021-11-19 13:21:35,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2021-11-19 13:21:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:21:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:21:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-11-19 13:21:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-11-19 13:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2021-11-19 13:21:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2021-11-19 13:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2021-11-19 13:21:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2021-11-19 13:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2021-11-19 13:21:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2021-11-19 13:21:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-11-19 13:21:35,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-11-19 13:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-19 13:21:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-19 13:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2021-11-19 13:21:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2021-11-19 13:21:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2021-11-19 13:21:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2021-11-19 13:21:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2021-11-19 13:21:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2021-11-19 13:21:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-19 13:21:35,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-19 13:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:21:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:21:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-19 13:21:35,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-19 13:21:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:21:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:21:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-11-19 13:21:35,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-11-19 13:21:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:21:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 13:21:35,312 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 13:21:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:21:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 13:21:35,313 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 13:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-19 13:21:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-19 13:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-19 13:21:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-19 13:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:21:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:21:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 13:21:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 13:21:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:21:35,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:21:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 13:21:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 13:21:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2021-11-19 13:21:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2021-11-19 13:21:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-11-19 13:21:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-11-19 13:21:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2021-11-19 13:21:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2021-11-19 13:21:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 13:21:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 13:21:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2021-11-19 13:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2021-11-19 13:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2021-11-19 13:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2021-11-19 13:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-19 13:21:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-19 13:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:21:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-11-19 13:21:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-11-19 13:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:21:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2021-11-19 13:21:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2021-11-19 13:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:21:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:21:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-19 13:21:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-19 13:21:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:21:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 13:21:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 13:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-11-19 13:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-11-19 13:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-19 13:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-19 13:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2021-11-19 13:21:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2021-11-19 13:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-11-19 13:21:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-11-19 13:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:21:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:21:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2021-11-19 13:21:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2021-11-19 13:21:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:21:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 13:21:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 13:21:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2021-11-19 13:21:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2021-11-19 13:21:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UINT [2021-11-19 13:21:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UINT [2021-11-19 13:21:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-19 13:21:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-19 13:21:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2021-11-19 13:21:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2021-11-19 13:21:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 13:21:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 13:21:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:21:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:21:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2021-11-19 13:21:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2021-11-19 13:21:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2021-11-19 13:21:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2021-11-19 13:21:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:21:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:21:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:21:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 13:21:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 13:21:36,209 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:21:36,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:21:36,359 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:36,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-11-19 13:21:36,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-11-19 13:21:52,913 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,924 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,926 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,929 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,935 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,937 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:21:52,946 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:22:06,227 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2021-11-19 13:22:06,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2021-11-19 13:22:06,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2021-11-19 13:22:06,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2021-11-19 13:22:06,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-11-19 13:22:06,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-11-19 13:22:06,229 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-11-19 13:22:06,229 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-11-19 13:22:06,229 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-11-19 13:22:06,229 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-11-19 13:22:06,229 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume !false; [2021-11-19 13:22:06,230 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##392: assume false; [2021-11-19 13:22:06,230 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2021-11-19 13:22:06,230 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2021-11-19 13:22:06,278 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:22:06,301 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:22:06,301 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:22:06,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:06 BoogieIcfgContainer [2021-11-19 13:22:06,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:22:06,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:22:06,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:22:06,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:22:06,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:21:29" (1/3) ... [2021-11-19 13:22:06,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:06, skipping insertion in model container [2021-11-19 13:22:06,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:34" (2/3) ... [2021-11-19 13:22:06,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:06, skipping insertion in model container [2021-11-19 13:22:06,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:06" (3/3) ... [2021-11-19 13:22:06,316 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-19 13:22:06,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:22:06,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:22:06,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:22:06,398 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:22:06,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:22:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2021-11-19 13:22:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 13:22:06,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:06,477 INFO L514 BasicCegarLoop]: 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] [2021-11-19 13:22:06,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:06,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash 397407914, now seen corresponding path program 1 times [2021-11-19 13:22:06,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:06,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796878612] [2021-11-19 13:22:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:06,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:06,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:06,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:06,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:22:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:08,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:22:08,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:22:08,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:22:08,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:08,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796878612] [2021-11-19 13:22:08,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796878612] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:08,841 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:08,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 13:22:08,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917200171] [2021-11-19 13:22:08,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:08,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:22:08,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:08,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:22:08,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:22:08,890 INFO L87 Difference]: Start difference. First operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 13:22:09,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:09,260 INFO L93 Difference]: Finished difference Result 3469 states and 4914 transitions. [2021-11-19 13:22:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:22:09,266 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), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-11-19 13:22:09,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:09,337 INFO L225 Difference]: With dead ends: 3469 [2021-11-19 13:22:09,337 INFO L226 Difference]: Without dead ends: 2277 [2021-11-19 13:22:09,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:22:09,374 INFO L933 BasicCegarLoop]: 1887 mSDtfsCounter, 1585 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:09,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 3434 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:22:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2021-11-19 13:22:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2274. [2021-11-19 13:22:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.3092592592592593) internal successors, (2121), 1653 states have internal predecessors, (2121), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-11-19 13:22:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3116 transitions. [2021-11-19 13:22:09,700 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3116 transitions. Word has length 23 [2021-11-19 13:22:09,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:09,701 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3116 transitions. [2021-11-19 13:22:09,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 13:22:09,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3116 transitions. [2021-11-19 13:22:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 13:22:09,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:09,727 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:09,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:09,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:09,946 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1288305363, now seen corresponding path program 1 times [2021-11-19 13:22:09,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:09,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454654837] [2021-11-19 13:22:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:09,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:09,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:09,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:22:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:12,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:22:12,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:22:12,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:22:13,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:13,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454654837] [2021-11-19 13:22:13,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454654837] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:13,267 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:13,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:22:13,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086769463] [2021-11-19 13:22:13,268 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:13,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:22:13,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:22:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:22:13,271 INFO L87 Difference]: Start difference. First operand 2274 states and 3116 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:22:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:13,578 INFO L93 Difference]: Finished difference Result 4499 states and 6165 transitions. [2021-11-19 13:22:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:22:13,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 130 [2021-11-19 13:22:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:13,602 INFO L225 Difference]: With dead ends: 4499 [2021-11-19 13:22:13,602 INFO L226 Difference]: Without dead ends: 2274 [2021-11-19 13:22:13,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:22:13,614 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 1 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:13,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6374 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:22:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2021-11-19 13:22:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2021-11-19 13:22:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.308641975308642) internal successors, (2120), 1653 states have internal predecessors, (2120), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-11-19 13:22:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3115 transitions. [2021-11-19 13:22:13,786 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3115 transitions. Word has length 130 [2021-11-19 13:22:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:13,787 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3115 transitions. [2021-11-19 13:22:13,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:22:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3115 transitions. [2021-11-19 13:22:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-19 13:22:13,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:13,795 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:13,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:14,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:14,009 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash 101536959, now seen corresponding path program 1 times [2021-11-19 13:22:14,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:14,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428387273] [2021-11-19 13:22:14,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:14,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:14,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:14,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:22:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:16,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 13:22:16,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 13:22:17,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 13:22:18,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:18,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428387273] [2021-11-19 13:22:18,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428387273] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:18,710 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:18,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 13:22:18,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31687994] [2021-11-19 13:22:18,711 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:18,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:22:18,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:22:18,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:22:18,715 INFO L87 Difference]: Start difference. First operand 2274 states and 3115 transitions. Second operand has 14 states, 14 states have (on average 9.5) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (34), 5 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:22:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:19,719 INFO L93 Difference]: Finished difference Result 4578 states and 6280 transitions. [2021-11-19 13:22:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:22:19,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.5) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (34), 5 states have call predecessors, (34), 2 states have call successors, (34) Word has length 143 [2021-11-19 13:22:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:19,743 INFO L225 Difference]: With dead ends: 4578 [2021-11-19 13:22:19,743 INFO L226 Difference]: Without dead ends: 2303 [2021-11-19 13:22:19,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:22:19,757 INFO L933 BasicCegarLoop]: 1595 mSDtfsCounter, 29 mSDsluCounter, 15925 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 17520 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:19,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 17520 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:22:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2021-11-19 13:22:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2291. [2021-11-19 13:22:19,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1632 states have (on average 1.3063725490196079) internal successors, (2132), 1665 states have internal predecessors, (2132), 499 states have call successors, (499), 160 states have call predecessors, (499), 159 states have return successors, (500), 491 states have call predecessors, (500), 497 states have call successors, (500) [2021-11-19 13:22:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3131 transitions. [2021-11-19 13:22:20,018 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3131 transitions. Word has length 143 [2021-11-19 13:22:20,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:20,018 INFO L470 AbstractCegarLoop]: Abstraction has 2291 states and 3131 transitions. [2021-11-19 13:22:20,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.5) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (34), 5 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:22:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3131 transitions. [2021-11-19 13:22:20,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 13:22:20,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:20,025 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:20,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:20,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:20,239 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:20,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash -404258007, now seen corresponding path program 1 times [2021-11-19 13:22:20,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:20,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253165883] [2021-11-19 13:22:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:20,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:20,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:22:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:22,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:22:22,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:22:23,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:22:23,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:23,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253165883] [2021-11-19 13:22:23,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253165883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:23,639 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:23,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:22:23,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522111127] [2021-11-19 13:22:23,640 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:23,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:22:23,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:22:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:22:23,643 INFO L87 Difference]: Start difference. First operand 2291 states and 3131 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 13:22:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:24,054 INFO L93 Difference]: Finished difference Result 4520 states and 6185 transitions. [2021-11-19 13:22:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:22:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 150 [2021-11-19 13:22:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:24,078 INFO L225 Difference]: With dead ends: 4520 [2021-11-19 13:22:24,078 INFO L226 Difference]: Without dead ends: 2273 [2021-11-19 13:22:24,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:22:24,092 INFO L933 BasicCegarLoop]: 1595 mSDtfsCounter, 8 mSDsluCounter, 6359 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7954 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:24,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 7954 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-19 13:22:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2021-11-19 13:22:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1622 states have (on average 1.3051787916152897) internal successors, (2117), 1653 states have internal predecessors, (2117), 494 states have call successors, (494), 157 states have call predecessors, (494), 156 states have return successors, (495), 486 states have call predecessors, (495), 492 states have call successors, (495) [2021-11-19 13:22:24,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3106 transitions. [2021-11-19 13:22:24,237 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3106 transitions. Word has length 150 [2021-11-19 13:22:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:24,238 INFO L470 AbstractCegarLoop]: Abstraction has 2273 states and 3106 transitions. [2021-11-19 13:22:24,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 13:22:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3106 transitions. [2021-11-19 13:22:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 13:22:24,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:24,254 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:24,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:24,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:24,479 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:24,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:24,479 INFO L85 PathProgramCache]: Analyzing trace with hash 539210141, now seen corresponding path program 1 times [2021-11-19 13:22:24,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:24,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839254687] [2021-11-19 13:22:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:24,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:24,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:24,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:24,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:22:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:26,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:22:26,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 13:22:27,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 13:22:28,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:28,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839254687] [2021-11-19 13:22:28,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839254687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:28,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:28,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:22:28,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050358798] [2021-11-19 13:22:28,043 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:28,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:22:28,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:28,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:22:28,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:22:28,047 INFO L87 Difference]: Start difference. First operand 2273 states and 3106 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-19 13:22:28,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:28,285 INFO L93 Difference]: Finished difference Result 4511 states and 6172 transitions. [2021-11-19 13:22:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:22:28,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 198 [2021-11-19 13:22:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:28,310 INFO L225 Difference]: With dead ends: 4511 [2021-11-19 13:22:28,310 INFO L226 Difference]: Without dead ends: 2273 [2021-11-19 13:22:28,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:22:28,324 INFO L933 BasicCegarLoop]: 1583 mSDtfsCounter, 1 mSDsluCounter, 6310 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7893 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:28,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7893 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:28,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-19 13:22:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2021-11-19 13:22:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1622 states have (on average 1.3045622688039458) internal successors, (2116), 1653 states have internal predecessors, (2116), 494 states have call successors, (494), 157 states have call predecessors, (494), 156 states have return successors, (495), 486 states have call predecessors, (495), 492 states have call successors, (495) [2021-11-19 13:22:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3105 transitions. [2021-11-19 13:22:28,456 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3105 transitions. Word has length 198 [2021-11-19 13:22:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:28,457 INFO L470 AbstractCegarLoop]: Abstraction has 2273 states and 3105 transitions. [2021-11-19 13:22:28,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-19 13:22:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3105 transitions. [2021-11-19 13:22:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-19 13:22:28,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:28,466 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:28,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:28,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:28,691 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash 26677212, now seen corresponding path program 1 times [2021-11-19 13:22:28,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:28,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917843770] [2021-11-19 13:22:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:28,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:28,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:28,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:22:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:30,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 13:22:30,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 13:22:32,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 13:22:34,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:34,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917843770] [2021-11-19 13:22:34,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917843770] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:22:34,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:22:34,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2021-11-19 13:22:34,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709924759] [2021-11-19 13:22:34,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:34,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:22:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:22:34,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:22:34,755 INFO L87 Difference]: Start difference. First operand 2273 states and 3105 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:22:36,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:36,279 INFO L93 Difference]: Finished difference Result 6779 states and 9336 transitions. [2021-11-19 13:22:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 13:22:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) Word has length 194 [2021-11-19 13:22:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:36,325 INFO L225 Difference]: With dead ends: 6779 [2021-11-19 13:22:36,325 INFO L226 Difference]: Without dead ends: 4535 [2021-11-19 13:22:36,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2021-11-19 13:22:36,341 INFO L933 BasicCegarLoop]: 3094 mSDtfsCounter, 1567 mSDsluCounter, 26292 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 29386 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:36,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 29386 Invalid, 85 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:22:36,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2021-11-19 13:22:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 4497. [2021-11-19 13:22:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4497 states, 3208 states have (on average 1.3051745635910224) internal successors, (4187), 3270 states have internal predecessors, (4187), 977 states have call successors, (977), 309 states have call predecessors, (977), 311 states have return successors, (1000), 965 states have call predecessors, (1000), 975 states have call successors, (1000) [2021-11-19 13:22:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 6164 transitions. [2021-11-19 13:22:36,648 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 6164 transitions. Word has length 194 [2021-11-19 13:22:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:36,649 INFO L470 AbstractCegarLoop]: Abstraction has 4497 states and 6164 transitions. [2021-11-19 13:22:36,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:22:36,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 6164 transitions. [2021-11-19 13:22:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-19 13:22:36,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:36,661 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:36,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:36,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:36,887 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1882448228, now seen corresponding path program 2 times [2021-11-19 13:22:36,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:36,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845427474] [2021-11-19 13:22:36,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:22:36,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:36,892 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:36,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:22:38,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:22:38,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:22:38,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:22:38,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-19 13:22:39,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:22:39,819 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:39,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845427474] [2021-11-19 13:22:39,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845427474] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:39,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:39,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:22:39,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195231756] [2021-11-19 13:22:39,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:39,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:22:39,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:22:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:39,822 INFO L87 Difference]: Start difference. First operand 4497 states and 6164 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:22:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:40,115 INFO L93 Difference]: Finished difference Result 9113 states and 12548 transitions. [2021-11-19 13:22:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:22:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 201 [2021-11-19 13:22:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:40,159 INFO L225 Difference]: With dead ends: 9113 [2021-11-19 13:22:40,160 INFO L226 Difference]: Without dead ends: 4681 [2021-11-19 13:22:40,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:40,183 INFO L933 BasicCegarLoop]: 1609 mSDtfsCounter, 86 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:40,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 3193 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:40,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2021-11-19 13:22:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 4497. [2021-11-19 13:22:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4497 states, 3208 states have (on average 1.303927680798005) internal successors, (4183), 3270 states have internal predecessors, (4183), 977 states have call successors, (977), 309 states have call predecessors, (977), 311 states have return successors, (1000), 965 states have call predecessors, (1000), 975 states have call successors, (1000) [2021-11-19 13:22:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 6160 transitions. [2021-11-19 13:22:40,497 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 6160 transitions. Word has length 201 [2021-11-19 13:22:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:40,498 INFO L470 AbstractCegarLoop]: Abstraction has 4497 states and 6160 transitions. [2021-11-19 13:22:40,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:22:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 6160 transitions. [2021-11-19 13:22:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-19 13:22:40,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:40,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:40,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:40,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:40,723 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1656359814, now seen corresponding path program 1 times [2021-11-19 13:22:40,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:40,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943989582] [2021-11-19 13:22:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:40,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:40,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:40,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:40,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:22:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:42,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:22:42,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 13:22:44,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-19 13:22:46,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:46,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943989582] [2021-11-19 13:22:46,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943989582] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:22:46,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:22:46,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 16 [2021-11-19 13:22:46,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751773036] [2021-11-19 13:22:46,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:46,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:22:46,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:22:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:22:46,612 INFO L87 Difference]: Start difference. First operand 4497 states and 6160 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 7 states have internal predecessors, (139), 3 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:22:48,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:02,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:02,384 INFO L93 Difference]: Finished difference Result 15279 states and 21423 transitions. [2021-11-19 13:23:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:23:02,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 7 states have internal predecessors, (139), 3 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) Word has length 207 [2021-11-19 13:23:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:02,473 INFO L225 Difference]: With dead ends: 15279 [2021-11-19 13:23:02,474 INFO L226 Difference]: Without dead ends: 10831 [2021-11-19 13:23:02,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:23:02,495 INFO L933 BasicCegarLoop]: 3644 mSDtfsCounter, 2241 mSDsluCounter, 25296 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 152 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 28940 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:02,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2386 Valid, 28940 Invalid, 1760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [152 Valid, 1607 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2021-11-19 13:23:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10831 states. [2021-11-19 13:23:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10831 to 8840. [2021-11-19 13:23:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8840 states, 6310 states have (on average 1.3042789223454834) internal successors, (8230), 6432 states have internal predecessors, (8230), 1917 states have call successors, (1917), 608 states have call predecessors, (1917), 612 states have return successors, (1960), 1895 states have call predecessors, (1960), 1915 states have call successors, (1960) [2021-11-19 13:23:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 12107 transitions. [2021-11-19 13:23:03,179 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 12107 transitions. Word has length 207 [2021-11-19 13:23:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:03,181 INFO L470 AbstractCegarLoop]: Abstraction has 8840 states and 12107 transitions. [2021-11-19 13:23:03,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 7 states have internal predecessors, (139), 3 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:23:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 12107 transitions. [2021-11-19 13:23:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-19 13:23:03,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:03,199 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:03,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:03,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:03,424 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 59283356, now seen corresponding path program 1 times [2021-11-19 13:23:03,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:03,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232723743] [2021-11-19 13:23:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:03,428 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:03,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:03,430 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:03,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:23:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:05,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:05,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-19 13:23:06,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:23:06,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:06,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232723743] [2021-11-19 13:23:06,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232723743] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:06,720 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:06,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:23:06,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183056085] [2021-11-19 13:23:06,721 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:06,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:23:06,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:06,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:23:06,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:23:06,723 INFO L87 Difference]: Start difference. First operand 8840 states and 12107 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 4 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 13:23:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:07,385 INFO L93 Difference]: Finished difference Result 17631 states and 24193 transitions. [2021-11-19 13:23:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:07,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 4 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 201 [2021-11-19 13:23:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:07,447 INFO L225 Difference]: With dead ends: 17631 [2021-11-19 13:23:07,447 INFO L226 Difference]: Without dead ends: 8896 [2021-11-19 13:23:07,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:07,494 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 14 mSDsluCounter, 7890 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9472 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:07,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 9472 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8896 states. [2021-11-19 13:23:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8896 to 8872. [2021-11-19 13:23:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8872 states, 6338 states have (on average 1.3029346797096877) internal successors, (8258), 6464 states have internal predecessors, (8258), 1917 states have call successors, (1917), 608 states have call predecessors, (1917), 616 states have return successors, (1968), 1895 states have call predecessors, (1968), 1915 states have call successors, (1968) [2021-11-19 13:23:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8872 states to 8872 states and 12143 transitions. [2021-11-19 13:23:08,039 INFO L78 Accepts]: Start accepts. Automaton has 8872 states and 12143 transitions. Word has length 201 [2021-11-19 13:23:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:08,040 INFO L470 AbstractCegarLoop]: Abstraction has 8872 states and 12143 transitions. [2021-11-19 13:23:08,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 4 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 13:23:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8872 states and 12143 transitions. [2021-11-19 13:23:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 13:23:08,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:08,061 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:08,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 13:23:08,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:08,277 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:08,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1262165364, now seen corresponding path program 1 times [2021-11-19 13:23:08,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:08,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701391400] [2021-11-19 13:23:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:08,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:08,281 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:08,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:23:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:10,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1760 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:10,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-19 13:23:10,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:23:11,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:11,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701391400] [2021-11-19 13:23:11,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701391400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:11,509 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:11,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:23:11,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738480277] [2021-11-19 13:23:11,509 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:11,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:23:11,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:23:11,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:23:11,511 INFO L87 Difference]: Start difference. First operand 8872 states and 12143 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:23:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:12,245 INFO L93 Difference]: Finished difference Result 18303 states and 25153 transitions. [2021-11-19 13:23:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:12,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 204 [2021-11-19 13:23:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:12,298 INFO L225 Difference]: With dead ends: 18303 [2021-11-19 13:23:12,298 INFO L226 Difference]: Without dead ends: 9536 [2021-11-19 13:23:12,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:23:12,331 INFO L933 BasicCegarLoop]: 1633 mSDtfsCounter, 82 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 4815 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:12,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 4815 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:23:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9536 states. [2021-11-19 13:23:12,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9536 to 8928. [2021-11-19 13:23:12,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8928 states, 6394 states have (on average 1.3027838598686268) internal successors, (8330), 6520 states have internal predecessors, (8330), 1917 states have call successors, (1917), 608 states have call predecessors, (1917), 616 states have return successors, (1968), 1895 states have call predecessors, (1968), 1915 states have call successors, (1968) [2021-11-19 13:23:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8928 states to 8928 states and 12215 transitions. [2021-11-19 13:23:12,986 INFO L78 Accepts]: Start accepts. Automaton has 8928 states and 12215 transitions. Word has length 204 [2021-11-19 13:23:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:12,987 INFO L470 AbstractCegarLoop]: Abstraction has 8928 states and 12215 transitions. [2021-11-19 13:23:12,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:23:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8928 states and 12215 transitions. [2021-11-19 13:23:13,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-19 13:23:13,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:13,014 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:13,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:13,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:13,240 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash 494982506, now seen corresponding path program 1 times [2021-11-19 13:23:13,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:13,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454675385] [2021-11-19 13:23:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:13,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:13,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:13,245 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:13,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:23:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:15,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:15,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 13:23:16,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:23:17,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:17,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454675385] [2021-11-19 13:23:17,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454675385] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:17,895 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:17,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:17,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325931092] [2021-11-19 13:23:17,896 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:17,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:17,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:17,898 INFO L87 Difference]: Start difference. First operand 8928 states and 12215 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:23:20,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:20,526 INFO L93 Difference]: Finished difference Result 13368 states and 18316 transitions. [2021-11-19 13:23:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:20,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 207 [2021-11-19 13:23:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:20,571 INFO L225 Difference]: With dead ends: 13368 [2021-11-19 13:23:20,572 INFO L226 Difference]: Without dead ends: 8934 [2021-11-19 13:23:20,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:20,590 INFO L933 BasicCegarLoop]: 1851 mSDtfsCounter, 1445 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 3411 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:20,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 3411 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:23:20,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2021-11-19 13:23:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 8928. [2021-11-19 13:23:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8928 states, 6394 states have (on average 1.3012198936502972) internal successors, (8320), 6520 states have internal predecessors, (8320), 1917 states have call successors, (1917), 608 states have call predecessors, (1917), 616 states have return successors, (1968), 1895 states have call predecessors, (1968), 1915 states have call successors, (1968) [2021-11-19 13:23:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8928 states to 8928 states and 12205 transitions. [2021-11-19 13:23:21,216 INFO L78 Accepts]: Start accepts. Automaton has 8928 states and 12205 transitions. Word has length 207 [2021-11-19 13:23:21,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:21,217 INFO L470 AbstractCegarLoop]: Abstraction has 8928 states and 12205 transitions. [2021-11-19 13:23:21,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:23:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8928 states and 12205 transitions. [2021-11-19 13:23:21,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-19 13:23:21,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:21,237 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:21,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:21,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,455 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:21,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1650738123, now seen corresponding path program 1 times [2021-11-19 13:23:21,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:21,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793802790] [2021-11-19 13:23:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:21,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:21,458 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:21,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2392ac18-f9ad-40a5-98bc-58e7a042d12c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:24:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:24,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 205 conjunts are in the unsatisfiable core [2021-11-19 13:24:24,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:50,378 WARN L227 SmtUtils]: Spent 24.69s on a formula simplification. DAG size of input: 1208 DAG size of output: 86 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:24:50,381 INFO L354 Elim1Store]: treesize reduction 18099, result has 1.2 percent of original size [2021-11-19 13:24:50,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 91 case distinctions, treesize of input 1318 treesize of output 1408 [2021-11-19 13:24:51,041 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-19 13:24:51,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1326 treesize of output 1322 [2021-11-19 13:24:51,523 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-19 13:24:51,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1325 treesize of output 1327 [2021-11-19 13:26:22,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:26:30,733 WARN L227 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 1377 DAG size of output: 155 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:26:30,734 INFO L354 Elim1Store]: treesize reduction 3184, result has 9.6 percent of original size [2021-11-19 13:26:30,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 25 select indices, 25 select index equivalence classes, 1 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 323 case distinctions, treesize of input 957 treesize of output 1218 [2021-11-19 13:28:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:28:27,050 INFO L354 Elim1Store]: treesize reduction 2968, result has 0.0 percent of original size [2021-11-19 13:28:27,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 1 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 299 case distinctions, treesize of input 1206 treesize of output 1132 [2021-11-19 13:30:14,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-19 13:33:59,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,467 WARN L227 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 1421 DAG size of output: 110 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:34:06,468 INFO L354 Elim1Store]: treesize reduction 3291, result has 6.4 percent of original size [2021-11-19 13:34:06,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 25 select indices, 25 select index equivalence classes, 4 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 321 case distinctions, treesize of input 1236 treesize of output 1385