./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-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW --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 7aeec7696a529cfd4fe4dd2b18db6cb21f16cff1a7793506058657f67fba4ef5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:10:08,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:10:08,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:10:08,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:10:08,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:10:08,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:10:08,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:10:08,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:10:08,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:10:08,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:10:08,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:10:08,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:10:08,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:10:08,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:10:08,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:10:08,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:10:08,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:10:08,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:10:08,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:10:08,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:10:08,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:10:08,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:10:08,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:10:08,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:10:08,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:10:08,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:10:08,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:10:08,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:10:08,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:10:08,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:10:08,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:10:08,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:10:08,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:10:08,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:10:08,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:10:08,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:10:08,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:10:08,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:10:08,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:10:08,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:10:08,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:10:08,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:10:08,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:10:08,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:10:08,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:10:08,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:10:08,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:10:08,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:10:08,645 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:10:08,645 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:10:08,646 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:10:08,646 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:10:08,646 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:10:08,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:10:08,647 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:10:08,647 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:10:08,647 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:10:08,647 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:10:08,647 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:10:08,648 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:10:08,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:10:08,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:10:08,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:10:08,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:10:08,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:10:08,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:10:08,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:10:08,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:10:08,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:10:08,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:10:08,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:10:08,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:10:08,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:10:08,651 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:10:08,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:10:08,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:10:08,652 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:10:08,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:10:08,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:10:08,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:10:08,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aeec7696a529cfd4fe4dd2b18db6cb21f16cff1a7793506058657f67fba4ef5 [2022-11-23 15:10:08,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:10:09,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:10:09,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:10:09,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:10:09,014 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:10:09,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i [2022-11-23 15:10:12,161 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:10:12,993 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:10:12,994 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i [2022-11-23 15:10:13,057 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/data/62a9315cb/5d714261081e4333bbb751b6cbd6dbfb/FLAG7331c220f [2022-11-23 15:10:13,080 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/data/62a9315cb/5d714261081e4333bbb751b6cbd6dbfb [2022-11-23 15:10:13,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:10:13,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:10:13,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:10:13,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:10:13,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:10:13,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:13" (1/1) ... [2022-11-23 15:10:13,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a12b9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:13, skipping insertion in model container [2022-11-23 15:10:13,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:13" (1/1) ... [2022-11-23 15:10:13,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:10:13,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:10:16,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i[434068,434081] [2022-11-23 15:10:16,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:10:16,721 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:10:17,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i[434068,434081] [2022-11-23 15:10:17,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:10:17,644 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:10:17,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17 WrapperNode [2022-11-23 15:10:17,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:10:17,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:10:17,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:10:17,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:10:17,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:17,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,275 INFO L138 Inliner]: procedures = 317, calls = 5374, calls flagged for inlining = 157, calls inlined = 154, statements flattened = 11302 [2022-11-23 15:10:18,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:10:18,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:10:18,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:10:18,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:10:18,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:18,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:19,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:10:19,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:10:19,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:10:19,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:10:19,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (1/1) ... [2022-11-23 15:10:19,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:10:19,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:10:19,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:10:19,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7ff08d8-8b14-41d6-959d-64048f64fe85/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:10:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure AdvResetSB [2022-11-23 15:10:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvResetSB [2022-11-23 15:10:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure AscCalSDTRData [2022-11-23 15:10:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure AscCalSDTRData [2022-11-23 15:10:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 15:10:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure AscMemSumLramWord [2022-11-23 15:10:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMemSumLramWord [2022-11-23 15:10:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:10:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:10:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 15:10:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 15:10:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:10:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:10:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure AscIsrQDone [2022-11-23 15:10:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure AscIsrQDone [2022-11-23 15:10:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-23 15:10:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-23 15:10:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:10:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:10:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-11-23 15:10:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-11-23 15:10:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 15:10:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 15:10:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure AscIsChipHalted [2022-11-23 15:10:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure AscIsChipHalted [2022-11-23 15:10:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure adv_get_carrier [2022-11-23 15:10:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure adv_get_carrier [2022-11-23 15:10:19,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:10:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:10:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-23 15:10:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-23 15:10:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:10:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:10:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure AdvWaitEEPCmd [2022-11-23 15:10:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvWaitEEPCmd [2022-11-23 15:10:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_6 [2022-11-23 15:10:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_6 [2022-11-23 15:10:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:10:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:10:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure AscResetChipAndScsiBus [2022-11-23 15:10:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure AscResetChipAndScsiBus [2022-11-23 15:10:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure AdvISR [2022-11-23 15:10:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvISR [2022-11-23 15:10:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure AscFindSignature [2022-11-23 15:10:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure AscFindSignature [2022-11-23 15:10:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:10:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:10:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:10:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:10:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:10:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:10:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-11-23 15:10:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-11-23 15:10:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_wide_free_mem [2022-11-23 15:10:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_wide_free_mem [2022-11-23 15:10:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure AscAllocFreeQueue [2022-11-23 15:10:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure AscAllocFreeQueue [2022-11-23 15:10:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure AscSetLibErrorCode [2022-11-23 15:10:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSetLibErrorCode [2022-11-23 15:10:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure asc_isr_callback [2022-11-23 15:10:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure asc_isr_callback [2022-11-23 15:10:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 15:10:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 15:10:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:10:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure AdvLoadMicrocode [2022-11-23 15:10:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvLoadMicrocode [2022-11-23 15:10:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_isa_remove [2022-11-23 15:10:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_isa_remove [2022-11-23 15:10:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_alloc [2022-11-23 15:10:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_alloc [2022-11-23 15:10:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure AscWaitEEPRead [2022-11-23 15:10:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure AscWaitEEPRead [2022-11-23 15:10:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure AscMemWordCopyPtrFromLram [2022-11-23 15:10:19,314 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMemWordCopyPtrFromLram [2022-11-23 15:10:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:10:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_map [2022-11-23 15:10:19,316 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_map [2022-11-23 15:10:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:10:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:10:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure AdvInitAsc38C0800Driver [2022-11-23 15:10:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvInitAsc38C0800Driver [2022-11-23 15:10:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure AscSetChipSDTR [2022-11-23 15:10:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSetChipSDTR [2022-11-23 15:10:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:10:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-23 15:10:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-23 15:10:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:10:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:10:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure AdvSendIdleCmd [2022-11-23 15:10:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvSendIdleCmd [2022-11-23 15:10:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:10:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure AscGetNumOfFreeQueue [2022-11-23 15:10:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure AscGetNumOfFreeQueue [2022-11-23 15:10:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 15:10:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 15:10:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_find_tag [2022-11-23 15:10:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_find_tag [2022-11-23 15:10:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure AscGetChipVersion [2022-11-23 15:10:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure AscGetChipVersion [2022-11-23 15:10:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure isa_unregister_driver [2022-11-23 15:10:19,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isa_unregister_driver [2022-11-23 15:10:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:10:19,322 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:10:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure AscSetBank [2022-11-23 15:10:19,322 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSetBank [2022-11-23 15:10:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:10:19,323 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:10:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-23 15:10:19,323 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-23 15:10:19,324 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 15:10:19,325 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 15:10:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure AscInitAsc1000Driver [2022-11-23 15:10:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure AscInitAsc1000Driver [2022-11-23 15:10:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-23 15:10:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-23 15:10:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:10:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure AscSendScsiQueue [2022-11-23 15:10:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSendScsiQueue [2022-11-23 15:10:19,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:10:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:10:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2022-11-23 15:10:19,336 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2022-11-23 15:10:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-23 15:10:19,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-23 15:10:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:10:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2022-11-23 15:10:19,337 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2022-11-23 15:10:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure AscGetSynPeriodIndex [2022-11-23 15:10:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure AscGetSynPeriodIndex [2022-11-23 15:10:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure asc_get_eeprom_string [2022-11-23 15:10:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure asc_get_eeprom_string [2022-11-23 15:10:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 15:10:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 15:10:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:10:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure shost_use_blk_mq [2022-11-23 15:10:19,339 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_use_blk_mq [2022-11-23 15:10:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:10:19,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:10:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure adv_get_next_carrier [2022-11-23 15:10:19,339 INFO L138 BoogieDeclarations]: Found implementation of procedure adv_get_next_carrier [2022-11-23 15:10:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure AscReadEEPWord [2022-11-23 15:10:19,340 INFO L138 BoogieDeclarations]: Found implementation of procedure AscReadEEPWord [2022-11-23 15:10:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:10:19,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:10:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure AdvReadEEPWord [2022-11-23 15:10:19,340 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvReadEEPWord [2022-11-23 15:10:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure AscWriteEEPCmdReg [2022-11-23 15:10:19,340 INFO L138 BoogieDeclarations]: Found implementation of procedure AscWriteEEPCmdReg [2022-11-23 15:10:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:10:19,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:10:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 15:10:19,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 15:10:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:10:19,341 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:10:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure eisa_driver_unregister [2022-11-23 15:10:19,342 INFO L138 BoogieDeclarations]: Found implementation of procedure eisa_driver_unregister [2022-11-23 15:10:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:10:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:10:19,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:10:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure AscStopChip [2022-11-23 15:10:19,342 INFO L138 BoogieDeclarations]: Found implementation of procedure AscStopChip [2022-11-23 15:10:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_info [2022-11-23 15:10:19,343 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_info [2022-11-23 15:10:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-23 15:10:19,343 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-23 15:10:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure AdvResetChipAndSB [2022-11-23 15:10:19,344 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvResetChipAndSB [2022-11-23 15:10:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure AscMemWordCopyPtrToLram [2022-11-23 15:10:19,344 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMemWordCopyPtrToLram [2022-11-23 15:10:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:10:19,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:10:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure AscMsgOutSDTR [2022-11-23 15:10:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMsgOutSDTR [2022-11-23 15:10:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure AscSetChipSynRegAtID [2022-11-23 15:10:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSetChipSynRegAtID [2022-11-23 15:10:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:10:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:10:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:10:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 15:10:19,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 15:10:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:10:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:10:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:10:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure AscWriteEEPWord [2022-11-23 15:10:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure AscWriteEEPWord [2022-11-23 15:10:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_release [2022-11-23 15:10:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_release [2022-11-23 15:10:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:10:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:10:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:10:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_pci_remove [2022-11-23 15:10:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_pci_remove [2022-11-23 15:10:19,350 INFO L130 BoogieDeclarations]: Found specification of procedure AscWriteLramByte [2022-11-23 15:10:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure AscWriteLramByte [2022-11-23 15:10:19,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 15:10:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 15:10:19,350 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-23 15:10:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-23 15:10:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure advansys_board_found [2022-11-23 15:10:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure advansys_board_found [2022-11-23 15:10:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure AscMemDWordCopyPtrToLram [2022-11-23 15:10:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMemDWordCopyPtrToLram [2022-11-23 15:10:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure AdvInitAsc3550Driver [2022-11-23 15:10:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvInitAsc3550Driver [2022-11-23 15:10:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure AscWriteLramWord [2022-11-23 15:10:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure AscWriteLramWord [2022-11-23 15:10:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure AscReadLramByte [2022-11-23 15:10:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure AscReadLramByte [2022-11-23 15:10:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure AdvBuildCarrierFreelist [2022-11-23 15:10:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvBuildCarrierFreelist [2022-11-23 15:10:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure AscStartChip [2022-11-23 15:10:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure AscStartChip [2022-11-23 15:10:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure AscReadLramWord [2022-11-23 15:10:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure AscReadLramWord [2022-11-23 15:10:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure AscSetChipIH [2022-11-23 15:10:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure AscSetChipIH [2022-11-23 15:10:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 15:10:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 15:10:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure asc_scsi_done [2022-11-23 15:10:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure asc_scsi_done [2022-11-23 15:10:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-11-23 15:10:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-11-23 15:10:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 15:10:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 15:10:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure AscPutReadyQueue [2022-11-23 15:10:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure AscPutReadyQueue [2022-11-23 15:10:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 15:10:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 15:10:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:10:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:10:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_set_resid [2022-11-23 15:10:19,355 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_set_resid [2022-11-23 15:10:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-11-23 15:10:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-11-23 15:10:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:10:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-23 15:10:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-23 15:10:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-23 15:10:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-23 15:10:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure AdvInitAsc38C1600Driver [2022-11-23 15:10:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure AdvInitAsc38C1600Driver [2022-11-23 15:10:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-23 15:10:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-23 15:10:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-23 15:10:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-23 15:10:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure AscMemWordSetLram [2022-11-23 15:10:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure AscMemWordSetLram [2022-11-23 15:10:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure isa_register_driver [2022-11-23 15:10:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isa_register_driver [2022-11-23 15:10:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-23 15:10:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-23 15:10:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:10:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:10:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-23 15:10:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-23 15:10:20,763 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:10:20,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:10:21,333 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:10:57,894 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:11:03,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:11:03,940 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 15:11:03,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:03 BoogieIcfgContainer [2022-11-23 15:11:04,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:11:04,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:11:04,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:11:04,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:11:04,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:13" (1/3) ... [2022-11-23 15:11:04,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5871e494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:04, skipping insertion in model container [2022-11-23 15:11:04,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:17" (2/3) ... [2022-11-23 15:11:04,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5871e494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:04, skipping insertion in model container [2022-11-23 15:11:04,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:03" (3/3) ... [2022-11-23 15:11:04,086 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--advansys.ko-entry_point.cil.out.i [2022-11-23 15:11:04,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:11:04,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:11:04,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:11:04,245 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3396dc3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:11:04,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:11:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 3041 states, 1771 states have (on average 1.33201581027668) internal successors, (2359), 1855 states have internal predecessors, (2359), 1154 states have call successors, (1154), 119 states have call predecessors, (1154), 118 states have return successors, (1145), 1144 states have call predecessors, (1145), 1145 states have call successors, (1145) [2022-11-23 15:11:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-23 15:11:04,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:04,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:04,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:04,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1131189853, now seen corresponding path program 1 times [2022-11-23 15:11:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:04,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971043034] [2022-11-23 15:11:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-23 15:11:05,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971043034] [2022-11-23 15:11:05,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971043034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:05,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:05,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:11:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89309710] [2022-11-23 15:11:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:05,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:05,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:05,354 INFO L87 Difference]: Start difference. First operand has 3041 states, 1771 states have (on average 1.33201581027668) internal successors, (2359), 1855 states have internal predecessors, (2359), 1154 states have call successors, (1154), 119 states have call predecessors, (1154), 118 states have return successors, (1145), 1144 states have call predecessors, (1145), 1145 states have call successors, (1145) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-23 15:11:07,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:10,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:12,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:14,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:16,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:19,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:23,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:28,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:11:30,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:31,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:33,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:34,377 INFO L93 Difference]: Finished difference Result 8712 states and 13447 transitions. [2022-11-23 15:11:34,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:34,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2022-11-23 15:11:34,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:34,448 INFO L225 Difference]: With dead ends: 8712 [2022-11-23 15:11:34,448 INFO L226 Difference]: Without dead ends: 5645 [2022-11-23 15:11:34,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:34,487 INFO L413 NwaCegarLoop]: 6135 mSDtfsCounter, 4085 mSDsluCounter, 4232 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4090 SdHoareTripleChecker+Valid, 10367 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:34,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4090 Valid, 10367 Invalid, 758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 750 Invalid, 6 Unknown, 0 Unchecked, 28.5s Time] [2022-11-23 15:11:34,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2022-11-23 15:11:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5636. [2022-11-23 15:11:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5636 states, 3260 states have (on average 1.3208588957055214) internal successors, (4306), 3383 states have internal predecessors, (4306), 2148 states have call successors, (2148), 228 states have call predecessors, (2148), 227 states have return successors, (2150), 2143 states have call predecessors, (2150), 2147 states have call successors, (2150) [2022-11-23 15:11:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5636 states to 5636 states and 8604 transitions. [2022-11-23 15:11:35,300 INFO L78 Accepts]: Start accepts. Automaton has 5636 states and 8604 transitions. Word has length 110 [2022-11-23 15:11:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:35,303 INFO L495 AbstractCegarLoop]: Abstraction has 5636 states and 8604 transitions. [2022-11-23 15:11:35,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-23 15:11:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5636 states and 8604 transitions. [2022-11-23 15:11:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-23 15:11:35,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:35,327 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 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] [2022-11-23 15:11:35,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:11:35,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:35,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:35,328 INFO L85 PathProgramCache]: Analyzing trace with hash 722121010, now seen corresponding path program 1 times [2022-11-23 15:11:35,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:35,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335486760] [2022-11-23 15:11:35,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:35,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-23 15:11:36,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:36,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335486760] [2022-11-23 15:11:36,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335486760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:36,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:36,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:11:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144624774] [2022-11-23 15:11:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:36,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:11:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:36,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:11:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:36,228 INFO L87 Difference]: Start difference. First operand 5636 states and 8604 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:11:37,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:39,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:43,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:48,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:51,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:54,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:56,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:00,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:02,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:04,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:05,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:07,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:17,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:19,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:20,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:22,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:23,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:25,032 INFO L93 Difference]: Finished difference Result 12741 states and 19579 transitions. [2022-11-23 15:12:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:12:25,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-11-23 15:12:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:25,087 INFO L225 Difference]: With dead ends: 12741 [2022-11-23 15:12:25,087 INFO L226 Difference]: Without dead ends: 7128 [2022-11-23 15:12:25,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:12:25,117 INFO L413 NwaCegarLoop]: 5351 mSDtfsCounter, 729 mSDsluCounter, 15168 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 20519 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:25,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 20519 Invalid, 1801 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 48.4s Time] [2022-11-23 15:12:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7128 states. [2022-11-23 15:12:25,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7128 to 5636. [2022-11-23 15:12:25,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5636 states, 3260 states have (on average 1.3196319018404907) internal successors, (4302), 3379 states have internal predecessors, (4302), 2148 states have call successors, (2148), 228 states have call predecessors, (2148), 227 states have return successors, (2150), 2143 states have call predecessors, (2150), 2147 states have call successors, (2150) [2022-11-23 15:12:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5636 states to 5636 states and 8600 transitions. [2022-11-23 15:12:25,626 INFO L78 Accepts]: Start accepts. Automaton has 5636 states and 8600 transitions. Word has length 164 [2022-11-23 15:12:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:25,627 INFO L495 AbstractCegarLoop]: Abstraction has 5636 states and 8600 transitions. [2022-11-23 15:12:25,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:12:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5636 states and 8600 transitions. [2022-11-23 15:12:25,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-23 15:12:25,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:25,636 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 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] [2022-11-23 15:12:25,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:12:25,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:12:25,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:25,646 INFO L85 PathProgramCache]: Analyzing trace with hash 551900761, now seen corresponding path program 1 times [2022-11-23 15:12:25,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:25,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876345847] [2022-11-23 15:12:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-11-23 15:12:26,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876345847] [2022-11-23 15:12:26,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876345847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:26,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:26,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:12:26,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770321529] [2022-11-23 15:12:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:12:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:12:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:12:26,415 INFO L87 Difference]: Start difference. First operand 5636 states and 8600 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 15:12:28,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:32,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:33,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:34,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:35,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:38,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:40,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:42,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:44,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:47,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:49,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:52,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:54,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:56,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:12:58,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:01,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:08,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:09,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:11,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:12,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:14,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:16,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:17,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:13:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:18,234 INFO L93 Difference]: Finished difference Result 12741 states and 19571 transitions. [2022-11-23 15:13:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:13:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2022-11-23 15:13:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:18,282 INFO L225 Difference]: With dead ends: 12741 [2022-11-23 15:13:18,282 INFO L226 Difference]: Without dead ends: 7128 [2022-11-23 15:13:18,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:13:18,313 INFO L413 NwaCegarLoop]: 5278 mSDtfsCounter, 728 mSDsluCounter, 14999 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 20277 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:18,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 20277 Invalid, 1767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1754 Invalid, 10 Unknown, 0 Unchecked, 51.4s Time] [2022-11-23 15:13:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7128 states. [2022-11-23 15:13:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7128 to 5636. [2022-11-23 15:13:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5636 states, 3260 states have (on average 1.3190184049079754) internal successors, (4300), 3377 states have internal predecessors, (4300), 2148 states have call successors, (2148), 228 states have call predecessors, (2148), 227 states have return successors, (2150), 2143 states have call predecessors, (2150), 2147 states have call successors, (2150) [2022-11-23 15:13:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5636 states to 5636 states and 8598 transitions. [2022-11-23 15:13:18,808 INFO L78 Accepts]: Start accepts. Automaton has 5636 states and 8598 transitions. Word has length 172 [2022-11-23 15:13:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:18,810 INFO L495 AbstractCegarLoop]: Abstraction has 5636 states and 8598 transitions. [2022-11-23 15:13:18,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 15:13:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5636 states and 8598 transitions. [2022-11-23 15:13:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-23 15:13:18,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:18,817 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:13:18,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:13:18,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:13:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2029099913, now seen corresponding path program 1 times [2022-11-23 15:13:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:18,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653986496] [2022-11-23 15:13:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms