./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V --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 b45d894549c3d959709f16d175c155effcb8f4008755bf9537dca57ce5b6aecf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:44:32,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:44:32,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:44:32,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:44:32,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:44:32,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:44:32,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:44:32,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:44:32,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:44:32,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:44:32,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:44:32,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:44:32,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:44:32,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:44:32,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:44:32,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:44:32,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:44:32,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:44:32,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:44:32,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:44:32,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:44:32,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:44:32,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:44:32,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:44:32,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:44:32,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:44:32,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:44:32,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:44:32,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:44:32,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:44:32,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:44:32,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:44:32,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:44:32,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:44:32,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:44:32,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:44:32,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:44:32,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:44:32,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:44:32,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:44:32,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:44:32,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:44:32,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:44:32,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:44:32,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:44:32,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:44:32,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:44:32,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:44:32,746 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:44:32,746 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:44:32,747 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:44:32,747 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:44:32,747 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:44:32,747 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:44:32,747 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:44:32,748 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:44:32,748 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:44:32,748 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:44:32,748 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:44:32,753 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:44:32,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:44:32,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:44:32,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:44:32,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:44:32,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:44:32,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:44:32,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:44:32,757 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:44:32,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:44:32,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:44:32,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:44:32,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:44:32,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:44:32,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:44:32,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:44:32,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:44:32,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:44:32,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:44:32,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:44:32,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:44:32,763 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_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b45d894549c3d959709f16d175c155effcb8f4008755bf9537dca57ce5b6aecf [2021-11-23 02:44:33,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:44:33,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:44:33,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:44:33,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:44:33,066 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:44:33,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2021-11-23 02:44:33,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/data/b49f4335a/b29b34bb0f924de3bae116c15e9b75a8/FLAG2fc6c1be4 [2021-11-23 02:44:34,110 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:44:34,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2021-11-23 02:44:34,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/data/b49f4335a/b29b34bb0f924de3bae116c15e9b75a8/FLAG2fc6c1be4 [2021-11-23 02:44:34,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/data/b49f4335a/b29b34bb0f924de3bae116c15e9b75a8 [2021-11-23 02:44:34,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:44:34,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:44:34,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:44:34,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:44:34,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:44:34,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:34" (1/1) ... [2021-11-23 02:44:34,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18135ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:34, skipping insertion in model container [2021-11-23 02:44:34,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:34" (1/1) ... [2021-11-23 02:44:34,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:44:34,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:44:36,964 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_1a9b868b-6ad4-428c-a16c-c2dd04381211/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i[237426,237439] [2021-11-23 02:44:37,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:44:37,034 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:44:37,487 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_1a9b868b-6ad4-428c-a16c-c2dd04381211/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i[237426,237439] [2021-11-23 02:44:37,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:44:37,641 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:44:37,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37 WrapperNode [2021-11-23 02:44:37,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:44:37,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:44:37,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:44:37,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:44:37,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:37,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:37,984 INFO L137 Inliner]: procedures = 311, calls = 2050, calls flagged for inlining = 159, calls inlined = 157, statements flattened = 5633 [2021-11-23 02:44:37,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:44:37,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:44:37,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:44:37,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:44:38,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:44:38,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:44:38,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:44:38,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:44:38,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (1/1) ... [2021-11-23 02:44:38,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:44:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:44:38,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:44:38,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-23 02:44:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-23 02:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure loop_add [2021-11-23 02:44:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_add [2021-11-23 02:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure iov_iter_bvec [2021-11-23 02:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_iter_bvec [2021-11-23 02:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-23 02:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-23 02:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure loop_control_ioctl [2021-11-23 02:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_control_ioctl [2021-11-23 02:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 02:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 02:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 02:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 02:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:44:38,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2021-11-23 02:44:38,456 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2021-11-23 02:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-23 02:44:38,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-23 02:44:38,457 INFO L130 BoogieDeclarations]: Found specification of procedure loop_remove [2021-11-23 02:44:38,457 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_remove [2021-11-23 02:44:38,457 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2021-11-23 02:44:38,457 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2021-11-23 02:44:38,457 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:44:38,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:44:38,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:44:38,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:44:38,458 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2021-11-23 02:44:38,458 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2021-11-23 02:44:38,458 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2021-11-23 02:44:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2021-11-23 02:44:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_unfreeze_queue [2021-11-23 02:44:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_unfreeze_queue [2021-11-23 02:44:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-23 02:44:38,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-23 02:44:38,460 INFO L130 BoogieDeclarations]: Found specification of procedure lo_compat_ioctl [2021-11-23 02:44:38,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_compat_ioctl [2021-11-23 02:44:38,460 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-23 02:44:38,460 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-23 02:44:38,460 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:44:38,461 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:44:38,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:44:38,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:44:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:44:38,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:44:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-23 02:44:38,463 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-23 02:44:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2021-11-23 02:44:38,464 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2021-11-23 02:44:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure loop_handle_cmd [2021-11-23 02:44:38,464 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_handle_cmd [2021-11-23 02:44:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2021-11-23 02:44:38,465 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2021-11-23 02:44:38,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:44:38,465 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:44:38,466 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:44:38,466 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2021-11-23 02:44:38,466 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2021-11-23 02:44:38,466 INFO L130 BoogieDeclarations]: Found specification of procedure get_size [2021-11-23 02:44:38,466 INFO L138 BoogieDeclarations]: Found implementation of procedure get_size [2021-11-23 02:44:38,466 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-11-23 02:44:38,467 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-11-23 02:44:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-23 02:44:38,467 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-23 02:44:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:44:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 02:44:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2021-11-23 02:44:38,468 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2021-11-23 02:44:38,468 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-23 02:44:38,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-23 02:44:38,468 INFO L130 BoogieDeclarations]: Found specification of procedure lo_write_bvec [2021-11-23 02:44:38,468 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_write_bvec [2021-11-23 02:44:38,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:44:38,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:44:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 02:44:38,469 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 02:44:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-23 02:44:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-23 02:44:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-23 02:44:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-23 02:44:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status_old [2021-11-23 02:44:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status_old [2021-11-23 02:44:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-11-23 02:44:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-11-23 02:44:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 02:44:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 02:44:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:44:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:44:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure loop_reread_partitions [2021-11-23 02:44:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_reread_partitions [2021-11-23 02:44:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2021-11-23 02:44:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2021-11-23 02:44:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2021-11-23 02:44:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_iter_read [2021-11-23 02:44:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_iter_read [2021-11-23 02:44:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure idr_for_each [2021-11-23 02:44:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_for_each [2021-11-23 02:44:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:44:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-11-23 02:44:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-11-23 02:44:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2021-11-23 02:44:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2021-11-23 02:44:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-11-23 02:44:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-11-23 02:44:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 02:44:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 02:44:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:44:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure bio_advance_iter [2021-11-23 02:44:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_advance_iter [2021-11-23 02:44:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_write_work [2021-11-23 02:44:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_write_work [2021-11-23 02:44:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2021-11-23 02:44:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2021-11-23 02:44:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:44:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-11-23 02:44:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-11-23 02:44:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2021-11-23 02:44:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2021-11-23 02:44:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2021-11-23 02:44:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2021-11-23 02:44:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status64 [2021-11-23 02:44:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status64 [2021-11-23 02:44:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:44:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:44:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_11 [2021-11-23 02:44:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_11 [2021-11-23 02:44:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure zero_fill_bio [2021-11-23 02:44:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_fill_bio [2021-11-23 02:44:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:44:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:44:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure loop_attr_show [2021-11-23 02:44:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_attr_show [2021-11-23 02:44:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:44:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 02:44:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 02:44:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:44:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:44:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 02:44:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 02:44:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-23 02:44:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-23 02:44:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_freeze_queue [2021-11-23 02:44:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_freeze_queue [2021-11-23 02:44:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 02:44:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 02:44:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:44:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 02:44:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 02:44:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 02:44:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 02:44:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:44:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2021-11-23 02:44:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2021-11-23 02:44:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:44:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-23 02:44:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-23 02:44:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2021-11-23 02:44:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2021-11-23 02:44:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:44:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2021-11-23 02:44:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2021-11-23 02:44:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 02:44:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 02:44:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-23 02:44:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-23 02:44:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-11-23 02:44:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-11-23 02:44:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2021-11-23 02:44:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2021-11-23 02:44:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-11-23 02:44:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-11-23 02:44:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 02:44:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 02:44:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2021-11-23 02:44:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2021-11-23 02:44:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2021-11-23 02:44:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2021-11-23 02:44:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_read_work [2021-11-23 02:44:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_read_work [2021-11-23 02:44:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-23 02:44:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-23 02:44:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:44:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:44:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2021-11-23 02:44:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2021-11-23 02:44:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-11-23 02:44:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-11-23 02:44:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:44:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:44:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-23 02:44:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-23 02:44:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:44:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-23 02:44:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-23 02:44:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:44:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:44:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure loop_lookup [2021-11-23 02:44:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_lookup [2021-11-23 02:44:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_rq [2021-11-23 02:44:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_rq [2021-11-23 02:44:39,445 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:44:39,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:44:39,968 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:44:48,149 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:44:49,440 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:44:49,440 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:44:49,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:49 BoogieIcfgContainer [2021-11-23 02:44:49,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:44:49,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:44:49,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:44:49,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:44:49,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:44:34" (1/3) ... [2021-11-23 02:44:49,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3f1217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:49, skipping insertion in model container [2021-11-23 02:44:49,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:37" (2/3) ... [2021-11-23 02:44:49,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3f1217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:49, skipping insertion in model container [2021-11-23 02:44:49,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:49" (3/3) ... [2021-11-23 02:44:49,455 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2021-11-23 02:44:49,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:44:49,463 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:44:49,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:44:49,559 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 [2021-11-23 02:44:49,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:44:49,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 1252 states, 794 states have (on average 1.3614609571788414) internal successors, (1081), 829 states have internal predecessors, (1081), 363 states have call successors, (363), 94 states have call predecessors, (363), 93 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) [2021-11-23 02:44:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-11-23 02:44:49,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:49,691 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:49,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:49,698 INFO L85 PathProgramCache]: Analyzing trace with hash -280481047, now seen corresponding path program 1 times [2021-11-23 02:44:49,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78185855] [2021-11-23 02:44:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:49,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4531 trivial. 0 not checked. [2021-11-23 02:44:50,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:50,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78185855] [2021-11-23 02:44:50,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78185855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:50,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:50,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:50,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456965496] [2021-11-23 02:44:50,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:50,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:50,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:51,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:51,007 INFO L87 Difference]: Start difference. First operand has 1252 states, 794 states have (on average 1.3614609571788414) internal successors, (1081), 829 states have internal predecessors, (1081), 363 states have call successors, (363), 94 states have call predecessors, (363), 93 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-23 02:44:53,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:55,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:59,778 INFO L93 Difference]: Finished difference Result 3522 states and 5078 transitions. [2021-11-23 02:44:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:59,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 522 [2021-11-23 02:44:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:59,841 INFO L225 Difference]: With dead ends: 3522 [2021-11-23 02:44:59,841 INFO L226 Difference]: Without dead ends: 2339 [2021-11-23 02:44:59,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:59,881 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 1610 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:59,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1610 Valid, 3439 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-23 02:44:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2021-11-23 02:45:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2336. [2021-11-23 02:45:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1512 states have (on average 1.3531746031746033) internal successors, (2046), 1551 states have internal predecessors, (2046), 640 states have call successors, (640), 184 states have call predecessors, (640), 183 states have return successors, (638), 634 states have call predecessors, (638), 638 states have call successors, (638) [2021-11-23 02:45:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3324 transitions. [2021-11-23 02:45:00,193 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3324 transitions. Word has length 522 [2021-11-23 02:45:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:00,201 INFO L470 AbstractCegarLoop]: Abstraction has 2336 states and 3324 transitions. [2021-11-23 02:45:00,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-23 02:45:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3324 transitions. [2021-11-23 02:45:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-11-23 02:45:00,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:00,239 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:00,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:45:00,240 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:00,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:00,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1822363867, now seen corresponding path program 1 times [2021-11-23 02:45:00,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:00,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546615159] [2021-11-23 02:45:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:00,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4531 trivial. 0 not checked. [2021-11-23 02:45:01,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:01,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546615159] [2021-11-23 02:45:01,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546615159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:01,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:01,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:45:01,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36433090] [2021-11-23 02:45:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:01,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:45:01,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:45:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:01,233 INFO L87 Difference]: Start difference. First operand 2336 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2021-11-23 02:45:03,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:06,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:08,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:09,326 INFO L93 Difference]: Finished difference Result 5839 states and 8279 transitions. [2021-11-23 02:45:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:45:09,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 544 [2021-11-23 02:45:09,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:09,360 INFO L225 Difference]: With dead ends: 5839 [2021-11-23 02:45:09,361 INFO L226 Difference]: Without dead ends: 3602 [2021-11-23 02:45:09,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:09,375 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 901 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:09,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 3267 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-23 02:45:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2021-11-23 02:45:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3592. [2021-11-23 02:45:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2352 states have (on average 1.3630952380952381) internal successors, (3206), 2404 states have internal predecessors, (3206), 943 states have call successors, (943), 297 states have call predecessors, (943), 296 states have return successors, (941), 934 states have call predecessors, (941), 941 states have call successors, (941) [2021-11-23 02:45:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5090 transitions. [2021-11-23 02:45:09,584 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5090 transitions. Word has length 544 [2021-11-23 02:45:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:09,588 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5090 transitions. [2021-11-23 02:45:09,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2021-11-23 02:45:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5090 transitions. [2021-11-23 02:45:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2021-11-23 02:45:09,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:09,604 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:09,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:45:09,604 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:09,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:09,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1494682149, now seen corresponding path program 1 times [2021-11-23 02:45:09,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:09,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539278319] [2021-11-23 02:45:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:09,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:10,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5021 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5021 trivial. 0 not checked. [2021-11-23 02:45:10,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:10,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539278319] [2021-11-23 02:45:10,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539278319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:10,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:10,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:45:10,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95884085] [2021-11-23 02:45:10,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:10,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:45:10,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:10,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:45:10,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:10,201 INFO L87 Difference]: Start difference. First operand 3592 states and 5090 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-23 02:45:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:15,992 INFO L93 Difference]: Finished difference Result 10497 states and 14909 transitions. [2021-11-23 02:45:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:45:15,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 542 [2021-11-23 02:45:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:16,052 INFO L225 Difference]: With dead ends: 10497 [2021-11-23 02:45:16,053 INFO L226 Difference]: Without dead ends: 6995 [2021-11-23 02:45:16,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:16,077 INFO L933 BasicCegarLoop]: 1982 mSDtfsCounter, 1575 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:16,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 3409 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 02:45:16,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6995 states. [2021-11-23 02:45:16,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6995 to 6991. [2021-11-23 02:45:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 4593 states have (on average 1.3657740039190072) internal successors, (6273), 4691 states have internal predecessors, (6273), 1807 states have call successors, (1807), 591 states have call predecessors, (1807), 590 states have return successors, (1829), 1792 states have call predecessors, (1829), 1805 states have call successors, (1829) [2021-11-23 02:45:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 9909 transitions. [2021-11-23 02:45:16,505 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 9909 transitions. Word has length 542 [2021-11-23 02:45:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:16,507 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 9909 transitions. [2021-11-23 02:45:16,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-23 02:45:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 9909 transitions. [2021-11-23 02:45:16,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2021-11-23 02:45:16,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:16,534 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:16,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:45:16,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2138122428, now seen corresponding path program 1 times [2021-11-23 02:45:16,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:16,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755777079] [2021-11-23 02:45:16,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:16,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2021-11-23 02:45:17,023 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:17,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755777079] [2021-11-23 02:45:17,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755777079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:17,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:17,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:45:17,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381324676] [2021-11-23 02:45:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:17,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:45:17,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:45:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:17,027 INFO L87 Difference]: Start difference. First operand 6991 states and 9909 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-23 02:45:19,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:24,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:25,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:25,933 INFO L93 Difference]: Finished difference Result 18156 states and 25735 transitions. [2021-11-23 02:45:25,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:45:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 606 [2021-11-23 02:45:25,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:26,028 INFO L225 Difference]: With dead ends: 18156 [2021-11-23 02:45:26,028 INFO L226 Difference]: Without dead ends: 11264 [2021-11-23 02:45:26,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:26,070 INFO L933 BasicCegarLoop]: 2478 mSDtfsCounter, 1561 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:26,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 4008 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-11-23 02:45:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2021-11-23 02:45:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 11252. [2021-11-23 02:45:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11252 states, 7389 states have (on average 1.3629719853836784) internal successors, (10071), 7556 states have internal predecessors, (10071), 2912 states have call successors, (2912), 951 states have call predecessors, (2912), 950 states have return successors, (2950), 2888 states have call predecessors, (2950), 2910 states have call successors, (2950) [2021-11-23 02:45:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11252 states to 11252 states and 15933 transitions. [2021-11-23 02:45:26,755 INFO L78 Accepts]: Start accepts. Automaton has 11252 states and 15933 transitions. Word has length 606 [2021-11-23 02:45:26,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:26,756 INFO L470 AbstractCegarLoop]: Abstraction has 11252 states and 15933 transitions. [2021-11-23 02:45:26,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-23 02:45:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 11252 states and 15933 transitions. [2021-11-23 02:45:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2021-11-23 02:45:26,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:26,776 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:26,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:45:26,776 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash -46633801, now seen corresponding path program 1 times [2021-11-23 02:45:26,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:26,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751509164] [2021-11-23 02:45:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:26,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2021-11-23 02:45:27,363 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:27,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751509164] [2021-11-23 02:45:27,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751509164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:27,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:27,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:45:27,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17449798] [2021-11-23 02:45:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:27,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:45:27,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:27,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:45:27,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:45:27,369 INFO L87 Difference]: Start difference. First operand 11252 states and 15933 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-23 02:45:29,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:31,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:35,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:38,236 INFO L93 Difference]: Finished difference Result 22414 states and 31731 transitions. [2021-11-23 02:45:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:45:38,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 605 [2021-11-23 02:45:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:38,332 INFO L225 Difference]: With dead ends: 22414 [2021-11-23 02:45:38,332 INFO L226 Difference]: Without dead ends: 11263 [2021-11-23 02:45:38,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:45:38,393 INFO L933 BasicCegarLoop]: 1563 mSDtfsCounter, 8 mSDsluCounter, 3515 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:38,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4679 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2021-11-23 02:45:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11263 states. [2021-11-23 02:45:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11263 to 11254. [2021-11-23 02:45:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11254 states, 7391 states have (on average 1.3624678663239074) internal successors, (10070), 7558 states have internal predecessors, (10070), 2912 states have call successors, (2912), 951 states have call predecessors, (2912), 950 states have return successors, (2950), 2888 states have call predecessors, (2950), 2910 states have call successors, (2950) [2021-11-23 02:45:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11254 states to 11254 states and 15932 transitions. [2021-11-23 02:45:39,087 INFO L78 Accepts]: Start accepts. Automaton has 11254 states and 15932 transitions. Word has length 605 [2021-11-23 02:45:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:39,089 INFO L470 AbstractCegarLoop]: Abstraction has 11254 states and 15932 transitions. [2021-11-23 02:45:39,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-23 02:45:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 11254 states and 15932 transitions. [2021-11-23 02:45:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-23 02:45:39,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:39,103 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:39,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:45:39,104 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:39,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1026928469, now seen corresponding path program 1 times [2021-11-23 02:45:39,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791367077] [2021-11-23 02:45:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:39,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2021-11-23 02:45:39,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:39,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791367077] [2021-11-23 02:45:39,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791367077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:39,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:39,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:45:39,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660306057] [2021-11-23 02:45:39,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:39,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:45:39,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:39,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:45:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:45:39,598 INFO L87 Difference]: Start difference. First operand 11254 states and 15932 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:45:43,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:47,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:51,097 INFO L93 Difference]: Finished difference Result 22436 states and 31753 transitions. [2021-11-23 02:45:51,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:45:51,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 617 [2021-11-23 02:45:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:51,148 INFO L225 Difference]: With dead ends: 22436 [2021-11-23 02:45:51,148 INFO L226 Difference]: Without dead ends: 11274 [2021-11-23 02:45:51,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:45:51,195 INFO L933 BasicCegarLoop]: 1565 mSDtfsCounter, 13 mSDsluCounter, 5272 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:51,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 6242 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2021-11-23 02:45:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2021-11-23 02:45:51,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 11261. [2021-11-23 02:45:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11261 states, 7395 states have (on average 1.3614604462474644) internal successors, (10068), 7564 states have internal predecessors, (10068), 2915 states have call successors, (2915), 951 states have call predecessors, (2915), 950 states have return successors, (2953), 2889 states have call predecessors, (2953), 2913 states have call successors, (2953) [2021-11-23 02:45:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11261 states to 11261 states and 15936 transitions. [2021-11-23 02:45:51,614 INFO L78 Accepts]: Start accepts. Automaton has 11261 states and 15936 transitions. Word has length 617 [2021-11-23 02:45:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:51,615 INFO L470 AbstractCegarLoop]: Abstraction has 11261 states and 15936 transitions. [2021-11-23 02:45:51,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:45:51,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11261 states and 15936 transitions. [2021-11-23 02:45:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2021-11-23 02:45:51,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:51,700 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:51,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:45:51,701 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:51,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1625755762, now seen corresponding path program 1 times [2021-11-23 02:45:51,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:51,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774830576] [2021-11-23 02:45:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:51,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2021-11-23 02:45:52,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774830576] [2021-11-23 02:45:52,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774830576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:52,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:52,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:45:52,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148437993] [2021-11-23 02:45:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:52,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:45:52,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:45:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:45:52,183 INFO L87 Difference]: Start difference. First operand 11261 states and 15936 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:45:54,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:02,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:02,135 INFO L93 Difference]: Finished difference Result 22434 states and 31739 transitions. [2021-11-23 02:46:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:46:02,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 613 [2021-11-23 02:46:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:02,196 INFO L225 Difference]: With dead ends: 22434 [2021-11-23 02:46:02,197 INFO L226 Difference]: Without dead ends: 11259 [2021-11-23 02:46:02,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:46:02,236 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 13 mSDsluCounter, 5268 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6237 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:02,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 6237 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-11-23 02:46:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11259 states. [2021-11-23 02:46:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11259 to 11229. [2021-11-23 02:46:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11229 states, 7376 states have (on average 1.3619848156182213) internal successors, (10046), 7543 states have internal predecessors, (10046), 2907 states have call successors, (2907), 946 states have call predecessors, (2907), 945 states have return successors, (2945), 2883 states have call predecessors, (2945), 2905 states have call successors, (2945) [2021-11-23 02:46:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11229 states to 11229 states and 15898 transitions. [2021-11-23 02:46:02,699 INFO L78 Accepts]: Start accepts. Automaton has 11229 states and 15898 transitions. Word has length 613 [2021-11-23 02:46:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:02,700 INFO L470 AbstractCegarLoop]: Abstraction has 11229 states and 15898 transitions. [2021-11-23 02:46:02,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-23 02:46:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11229 states and 15898 transitions. [2021-11-23 02:46:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-23 02:46:02,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:02,714 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:02,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:46:02,714 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:02,715 INFO L85 PathProgramCache]: Analyzing trace with hash -681865092, now seen corresponding path program 1 times [2021-11-23 02:46:02,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:02,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164571545] [2021-11-23 02:46:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:02,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5553 trivial. 0 not checked. [2021-11-23 02:46:03,312 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:03,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164571545] [2021-11-23 02:46:03,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164571545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:03,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:03,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:46:03,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052291986] [2021-11-23 02:46:03,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:03,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:46:03,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:03,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:46:03,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:03,315 INFO L87 Difference]: Start difference. First operand 11229 states and 15898 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2021-11-23 02:46:05,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:09,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:12,720 INFO L93 Difference]: Finished difference Result 22534 states and 31938 transitions. [2021-11-23 02:46:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:46:12,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) Word has length 617 [2021-11-23 02:46:12,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:12,778 INFO L225 Difference]: With dead ends: 22534 [2021-11-23 02:46:12,779 INFO L226 Difference]: Without dead ends: 11412 [2021-11-23 02:46:12,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:46:12,816 INFO L933 BasicCegarLoop]: 1760 mSDtfsCounter, 1925 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 67 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 5044 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:12,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1925 Valid, 5044 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 714 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2021-11-23 02:46:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11412 states. [2021-11-23 02:46:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11412 to 11235. [2021-11-23 02:46:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11235 states, 7382 states have (on average 1.3612842048225413) internal successors, (10049), 7549 states have internal predecessors, (10049), 2907 states have call successors, (2907), 946 states have call predecessors, (2907), 945 states have return successors, (2945), 2883 states have call predecessors, (2945), 2905 states have call successors, (2945) [2021-11-23 02:46:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11235 states to 11235 states and 15901 transitions. [2021-11-23 02:46:13,412 INFO L78 Accepts]: Start accepts. Automaton has 11235 states and 15901 transitions. Word has length 617 [2021-11-23 02:46:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:13,414 INFO L470 AbstractCegarLoop]: Abstraction has 11235 states and 15901 transitions. [2021-11-23 02:46:13,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2021-11-23 02:46:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 11235 states and 15901 transitions. [2021-11-23 02:46:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2021-11-23 02:46:13,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:13,428 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:13,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:46:13,428 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1845097853, now seen corresponding path program 1 times [2021-11-23 02:46:13,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:13,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708427853] [2021-11-23 02:46:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:13,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5557 trivial. 0 not checked. [2021-11-23 02:46:14,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:14,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708427853] [2021-11-23 02:46:14,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708427853] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:46:14,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920663843] [2021-11-23 02:46:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:14,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:14,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:14,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9b868b-6ad4-428c-a16c-c2dd04381211/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:46:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:15,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 5340 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:46:15,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 537 proven. 1 refuted. 0 times theorem prover too weak. 5031 trivial. 0 not checked. [2021-11-23 02:46:17,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:46:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5557 trivial. 0 not checked. [2021-11-23 02:46:19,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920663843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:46:19,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [879713580] [2021-11-23 02:46:19,222 INFO L159 IcfgInterpreter]: Started Sifa with 196 locations of interest [2021-11-23 02:46:19,222 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:46:19,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:46:19,234 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:46:19,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:46:22,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:22,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 77 select indices, 77 select index equivalence classes, 249 disjoint index pairs (out of 2926 index pairs), introduced 77 new quantified variables, introduced 0 case distinctions, treesize of input 592 treesize of output 808 [2021-11-23 02:46:22,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 254 [2021-11-23 02:46:24,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:24,756 INFO L244 Elim1Store]: Index analysis took 1825 ms [2021-11-23 02:52:55,731 WARN L227 SmtUtils]: Spent 6.51m on a formula simplification. DAG size of input: 5660 DAG size of output: 1923 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:52:55,745 INFO L354 Elim1Store]: treesize reduction 70705, result has 6.7 percent of original size [2021-11-23 02:52:55,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 64 select indices, 64 select index equivalence classes, 2062 disjoint index pairs (out of 2016 index pairs), introduced 64 new quantified variables, introduced 85 case distinctions, treesize of input 393 treesize of output 5264 [2021-11-23 02:53:01,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 250 [2021-11-23 02:53:24,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:53:35,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:53:47,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:53:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:19,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:33,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:37,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:42,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:48,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:50,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:57,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:54:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:00,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:00,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:00,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:55:03,830 INFO L244 Elim1Store]: Index analysis took 104174 ms