./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--pcmcia--pcmcia.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS --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 e57b227c3abe31be68752eb7f86364cb989c58b5c435217a8e7dfebd98179f97 --- 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-8393723 [2022-11-19 07:37:23,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:37:23,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:37:23,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:37:23,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:37:23,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:37:23,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:37:23,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:37:23,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:37:23,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:37:23,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:37:23,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:37:23,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:37:23,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:37:23,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:37:23,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:37:24,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:37:24,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:37:24,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:37:24,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:37:24,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:37:24,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:37:24,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:37:24,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:37:24,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:37:24,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:37:24,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:37:24,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:37:24,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:37:24,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:37:24,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:37:24,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:37:24,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:37:24,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:37:24,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:37:24,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:37:24,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:37:24,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:37:24,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:37:24,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:37:24,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:37:24,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:37:24,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:37:24,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:37:24,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:37:24,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:37:24,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:37:24,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:37:24,057 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:37:24,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:37:24,058 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:37:24,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:37:24,059 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:37:24,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:37:24,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:37:24,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:37:24,060 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:37:24,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:37:24,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:37:24,060 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:37:24,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:37:24,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:37:24,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:37:24,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:37:24,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:37:24,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:37:24,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:37:24,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:37:24,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:37:24,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:37:24,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:37:24,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:37:24,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:37:24,064 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:37:24,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:37:24,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:37:24,065 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:37:24,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:37:24,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:37:24,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:37:24,066 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_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e57b227c3abe31be68752eb7f86364cb989c58b5c435217a8e7dfebd98179f97 [2022-11-19 07:37:24,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:37:24,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:37:24,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:37:24,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:37:24,347 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:37:24,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-19 07:37:24,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/data/25e871afb/a41c38615ca6454fbc56ee0ca00add54/FLAG335c205ce [2022-11-19 07:37:25,358 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:37:25,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-19 07:37:25,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/data/25e871afb/a41c38615ca6454fbc56ee0ca00add54/FLAG335c205ce [2022-11-19 07:37:25,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/data/25e871afb/a41c38615ca6454fbc56ee0ca00add54 [2022-11-19 07:37:25,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:37:25,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:37:25,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:37:25,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:37:25,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:37:25,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:25" (1/1) ... [2022-11-19 07:37:25,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4a5ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:25, skipping insertion in model container [2022-11-19 07:37:25,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:25" (1/1) ... [2022-11-19 07:37:25,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:37:25,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:37:29,216 WARN L234 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_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[420903,420916] [2022-11-19 07:37:29,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:37:29,358 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:37:30,043 WARN L234 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_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[420903,420916] [2022-11-19 07:37:30,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:37:30,206 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:37:30,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30 WrapperNode [2022-11-19 07:37:30,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:37:30,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:37:30,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:37:30,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:37:30,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:30,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:30,592 INFO L138 Inliner]: procedures = 301, calls = 5553, calls flagged for inlining = 93, calls inlined = 87, statements flattened = 7714 [2022-11-19 07:37:30,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:37:30,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:37:30,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:37:30,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:37:30,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:30,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:30,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:30,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:37:31,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:37:31,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:37:31,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:37:31,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (1/1) ... [2022-11-19 07:37:31,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:37:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:31,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:37:31,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9399bf9-66e7-4d41-a978-ef12c2dd65d4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:37:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:37:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:37:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-19 07:37:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-19 07:37:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure modalias_show [2022-11-19 07:37:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure modalias_show [2022-11-19 07:37:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 07:37:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_tuple [2022-11-19 07:37:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_tuple [2022-11-19 07:37:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_dev [2022-11-19 07:37:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_dev [2022-11-19 07:37:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:37:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id2_show [2022-11-19 07:37:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id2_show [2022-11-19 07:37:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:37:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:37:31,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:37:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:37:31,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:37:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_cis_cache [2022-11-19 07:37:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_cis_cache [2022-11-19 07:37:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:37:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:37:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_uevents [2022-11-19 07:37:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_uevents [2022-11-19 07:37:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_probe [2022-11-19 07:37:31,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_probe [2022-11-19 07:37:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure pm_state_show [2022-11-19 07:37:31,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_state_show [2022-11-19 07:37:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:37:31,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:37:31,331 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_devmatch [2022-11-19 07:37:31,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_devmatch [2022-11-19 07:37:31,331 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-19 07:37:31,331 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-19 07:37:31,331 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:37:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:37:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_mac_from_cis [2022-11-19 07:37:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_mac_from_cis [2022-11-19 07:37:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:37:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:37:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:37:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:37:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_load_firmware [2022-11-19 07:37:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_load_firmware [2022-11-19 07:37:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:37:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:37:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_next_tuple [2022-11-19 07:37:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_next_tuple [2022-11-19 07:37:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:37:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:37:31,334 INFO L130 BoogieDeclarations]: Found specification of procedure read_cis_cache [2022-11-19 07:37:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_cis_cache [2022-11-19 07:37:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-19 07:37:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-19 07:37:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add [2022-11-19 07:37:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add [2022-11-19 07:37:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 07:37:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 07:37:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_io_space [2022-11-19 07:37:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_io_space [2022-11-19 07:37:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_tuple_data [2022-11-19 07:37:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_tuple_data [2022-11-19 07:37:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cis_cache [2022-11-19 07:37:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cis_cache [2022-11-19 07:37:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:37:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_irq [2022-11-19 07:37:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_irq [2022-11-19 07:37:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_tuple [2022-11-19 07:37:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_tuple [2022-11-19 07:37:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:37:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:37:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:37:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-19 07:37:31,339 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-19 07:37:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:37:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-19 07:37:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-19 07:37:31,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-19 07:37:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_disable_device [2022-11-19 07:37:31,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_disable_device [2022-11-19 07:37:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-19 07:37:31,340 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-19 07:37:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-19 07:37:31,341 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-19 07:37:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure bus_for_each_dev [2022-11-19 07:37:31,341 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_for_each_dev [2022-11-19 07:37:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:37:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:37:31,342 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:37:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:37:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure request_resource [2022-11-19 07:37:31,343 INFO L138 BoogieDeclarations]: Found implementation of procedure request_resource [2022-11-19 07:37:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery_callback [2022-11-19 07:37:31,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery_callback [2022-11-19 07:37:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-11-19 07:37:31,344 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-11-19 07:37:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_configuration [2022-11-19 07:37:31,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_configuration [2022-11-19 07:37:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:37:31,344 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:37:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend [2022-11-19 07:37:31,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend [2022-11-19 07:37:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:37:31,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:37:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_validate_mem [2022-11-19 07:37:31,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_validate_mem [2022-11-19 07:37:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_window [2022-11-19 07:37:31,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_window [2022-11-19 07:37:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_find_mem_region [2022-11-19 07:37:31,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_find_mem_region [2022-11-19 07:37:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:37:31,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:37:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_space [2022-11-19 07:37:31,351 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_space [2022-11-19 07:37:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_early_resume [2022-11-19 07:37:31,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_early_resume [2022-11-19 07:37:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure follow_link [2022-11-19 07:37:31,354 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_link [2022-11-19 07:37:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:37:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_add [2022-11-19 07:37:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_add [2022-11-19 07:37:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 07:37:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 07:37:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_resume [2022-11-19 07:37:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_resume [2022-11-19 07:37:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:37:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id1_show [2022-11-19 07:37:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id1_show [2022-11-19 07:37:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-11-19 07:37:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-11-19 07:37:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:37:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_read_cis_mem [2022-11-19 07:37:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_read_cis_mem [2022-11-19 07:37:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_add [2022-11-19 07:37:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_add [2022-11-19 07:37:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id3_show [2022-11-19 07:37:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id3_show [2022-11-19 07:37:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_query [2022-11-19 07:37:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_query [2022-11-19 07:37:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure verify_cis_cache [2022-11-19 07:37:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_cis_cache [2022-11-19 07:37:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure parse_strings [2022-11-19 07:37:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_strings [2022-11-19 07:37:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:37:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:37:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-11-19 07:37:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-11-19 07:37:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume_callback [2022-11-19 07:37:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume_callback [2022-11-19 07:37:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume [2022-11-19 07:37:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume [2022-11-19 07:37:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_validate_cis [2022-11-19 07:37:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_validate_cis [2022-11-19 07:37:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:37:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:37:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_socket [2022-11-19 07:37:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_socket [2022-11-19 07:37:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure func_id_show [2022-11-19 07:37:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure func_id_show [2022-11-19 07:37:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:37:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:37:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:37:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_enable_device [2022-11-19 07:37:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_enable_device [2022-11-19 07:37:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_setup_isa_irq [2022-11-19 07:37:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_setup_isa_irq [2022-11-19 07:37:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_loop_tuple [2022-11-19 07:37:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_loop_tuple [2022-11-19 07:37:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2022-11-19 07:37:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2022-11-19 07:37:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-19 07:37:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-19 07:37:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:37:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:37:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure function_show [2022-11-19 07:37:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure function_show [2022-11-19 07:37:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery [2022-11-19 07:37:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery [2022-11-19 07:37:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:37:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:37:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend_callback [2022-11-19 07:37:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend_callback [2022-11-19 07:37:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_first_tuple [2022-11-19 07:37:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_first_tuple [2022-11-19 07:37:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2022-11-19 07:37:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2022-11-19 07:37:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:37:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_match [2022-11-19 07:37:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_match [2022-11-19 07:37:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:37:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:37:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_suspend [2022-11-19 07:37:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_suspend [2022-11-19 07:37:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_uevent [2022-11-19 07:37:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_uevent [2022-11-19 07:37:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 07:37:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 07:37:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_dev [2022-11-19 07:37:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_dev [2022-11-19 07:37:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_config [2022-11-19 07:37:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_config [2022-11-19 07:37:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:37:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_remove [2022-11-19 07:37:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_remove [2022-11-19 07:37:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add_socket [2022-11-19 07:37:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add_socket [2022-11-19 07:37:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_register_pcmcia [2022-11-19 07:37:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_register_pcmcia [2022-11-19 07:37:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:37:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:37:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:37:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_replace_cis [2022-11-19 07:37:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_replace_cis [2022-11-19 07:37:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:37:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:37:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2022-11-19 07:37:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2022-11-19 07:37:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:37:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:37:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_remove [2022-11-19 07:37:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_remove [2022-11-19 07:37:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure manf_id_show [2022-11-19 07:37:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure manf_id_show [2022-11-19 07:37:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2022-11-19 07:37:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2022-11-19 07:37:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure parse_power [2022-11-19 07:37:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_power [2022-11-19 07:37:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure card_id_show [2022-11-19 07:37:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure card_id_show [2022-11-19 07:37:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_socket [2022-11-19 07:37:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_socket [2022-11-19 07:37:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:37:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:37:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_fixup_iowidth [2022-11-19 07:37:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_fixup_iowidth [2022-11-19 07:37:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_cis_mem [2022-11-19 07:37:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_cis_mem [2022-11-19 07:37:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_suspend [2022-11-19 07:37:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_suspend [2022-11-19 07:37:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:37:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:37:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id4_show [2022-11-19 07:37:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id4_show [2022-11-19 07:37:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure resources_show [2022-11-19 07:37:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure resources_show [2022-11-19 07:37:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:37:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:37:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 07:37:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 07:37:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:37:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-19 07:37:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-19 07:37:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-19 07:37:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-19 07:37:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure set_cis_map [2022-11-19 07:37:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cis_map [2022-11-19 07:37:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_remove [2022-11-19 07:37:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_remove [2022-11-19 07:37:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:37:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-19 07:37:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-19 07:37:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:37:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:37:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_resume [2022-11-19 07:37:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_resume [2022-11-19 07:37:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_read_tuple [2022-11-19 07:37:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_read_tuple [2022-11-19 07:37:32,781 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:37:32,785 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:37:33,003 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:38:04,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:06,434 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:06,434 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:38:06,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:06 BoogieIcfgContainer [2022-11-19 07:38:06,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:06,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:06,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:06,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:06,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:25" (1/3) ... [2022-11-19 07:38:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4cf76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:06, skipping insertion in model container [2022-11-19 07:38:06,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:30" (2/3) ... [2022-11-19 07:38:06,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4cf76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:06, skipping insertion in model container [2022-11-19 07:38:06,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:06" (3/3) ... [2022-11-19 07:38:06,453 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2022-11-19 07:38:06,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:06,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:38:06,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:06,625 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;@4f16627c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:06,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:38:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 2269 states, 1518 states have (on average 1.4242424242424243) internal successors, (2162), 1567 states have internal predecessors, (2162), 626 states have call successors, (626), 124 states have call predecessors, (626), 123 states have return successors, (607), 605 states have call predecessors, (607), 607 states have call successors, (607) [2022-11-19 07:38:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-19 07:38:06,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:06,662 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:06,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash -170572304, now seen corresponding path program 1 times [2022-11-19 07:38:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:06,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242794969] [2022-11-19 07:38:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:06,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-19 07:38:08,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:08,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242794969] [2022-11-19 07:38:08,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242794969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:08,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:08,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:08,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011749345] [2022-11-19 07:38:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:08,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:08,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:08,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:08,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:08,803 INFO L87 Difference]: Start difference. First operand has 2269 states, 1518 states have (on average 1.4242424242424243) internal successors, (2162), 1567 states have internal predecessors, (2162), 626 states have call successors, (626), 124 states have call predecessors, (626), 123 states have return successors, (607), 605 states have call predecessors, (607), 607 states have call successors, (607) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-19 07:38:13,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:15,686 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 [] [2022-11-19 07:38:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:18,552 INFO L93 Difference]: Finished difference Result 6588 states and 10173 transitions. [2022-11-19 07:38:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:18,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 532 [2022-11-19 07:38:18,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:18,602 INFO L225 Difference]: With dead ends: 6588 [2022-11-19 07:38:18,602 INFO L226 Difference]: Without dead ends: 4361 [2022-11-19 07:38:18,623 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 [2022-11-19 07:38:18,626 INFO L413 NwaCegarLoop]: 3652 mSDtfsCounter, 3321 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3322 SdHoareTripleChecker+Valid, 6604 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:18,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 6604 Invalid, 613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 609 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-11-19 07:38:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-11-19 07:38:19,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4356. [2022-11-19 07:38:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 2953 states have (on average 1.4158482898747038) internal successors, (4181), 3010 states have internal predecessors, (4181), 1159 states have call successors, (1159), 245 states have call predecessors, (1159), 243 states have return successors, (1158), 1152 states have call predecessors, (1158), 1158 states have call successors, (1158) [2022-11-19 07:38:19,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 6498 transitions. [2022-11-19 07:38:19,109 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 6498 transitions. Word has length 532 [2022-11-19 07:38:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:19,119 INFO L495 AbstractCegarLoop]: Abstraction has 4356 states and 6498 transitions. [2022-11-19 07:38:19,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-19 07:38:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 6498 transitions. [2022-11-19 07:38:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-19 07:38:19,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:19,144 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:19,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:38:19,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:19,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2088278543, now seen corresponding path program 1 times [2022-11-19 07:38:19,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:19,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539928241] [2022-11-19 07:38:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:19,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-19 07:38:20,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:20,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539928241] [2022-11-19 07:38:20,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539928241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:20,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:20,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:20,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758947856] [2022-11-19 07:38:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:20,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:20,221 INFO L87 Difference]: Start difference. First operand 4356 states and 6498 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-19 07:38:21,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:25,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:29,836 INFO L93 Difference]: Finished difference Result 12740 states and 18982 transitions. [2022-11-19 07:38:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:29,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 550 [2022-11-19 07:38:29,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:29,906 INFO L225 Difference]: With dead ends: 12740 [2022-11-19 07:38:29,906 INFO L226 Difference]: Without dead ends: 8473 [2022-11-19 07:38:29,933 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 [2022-11-19 07:38:29,935 INFO L413 NwaCegarLoop]: 3604 mSDtfsCounter, 3185 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:29,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 6476 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 644 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-19 07:38:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-11-19 07:38:30,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 8469. [2022-11-19 07:38:30,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8469 states, 5756 states have (on average 1.4174774148714384) internal successors, (8159), 5869 states have internal predecessors, (8159), 2227 states have call successors, (2227), 489 states have call predecessors, (2227), 485 states have return successors, (2226), 2214 states have call predecessors, (2226), 2226 states have call successors, (2226) [2022-11-19 07:38:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8469 states to 8469 states and 12612 transitions. [2022-11-19 07:38:30,445 INFO L78 Accepts]: Start accepts. Automaton has 8469 states and 12612 transitions. Word has length 550 [2022-11-19 07:38:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:30,448 INFO L495 AbstractCegarLoop]: Abstraction has 8469 states and 12612 transitions. [2022-11-19 07:38:30,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-19 07:38:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 8469 states and 12612 transitions. [2022-11-19 07:38:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-11-19 07:38:30,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:30,466 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:30,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:30,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash -446384247, now seen corresponding path program 1 times [2022-11-19 07:38:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:30,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196673148] [2022-11-19 07:38:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:30,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2022-11-19 07:38:31,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:31,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196673148] [2022-11-19 07:38:31,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196673148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:31,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:31,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:31,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032352646] [2022-11-19 07:38:31,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:31,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:31,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:31,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:31,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:31,647 INFO L87 Difference]: Start difference. First operand 8469 states and 12612 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:32,952 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 [] [2022-11-19 07:38:36,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:41,138 INFO L93 Difference]: Finished difference Result 25041 states and 37256 transitions. [2022-11-19 07:38:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:41,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 553 [2022-11-19 07:38:41,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:41,271 INFO L225 Difference]: With dead ends: 25041 [2022-11-19 07:38:41,271 INFO L226 Difference]: Without dead ends: 16661 [2022-11-19 07:38:41,330 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 [2022-11-19 07:38:41,331 INFO L413 NwaCegarLoop]: 3692 mSDtfsCounter, 3232 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:41,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 6574 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 640 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 07:38:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16661 states. [2022-11-19 07:38:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16661 to 16655. [2022-11-19 07:38:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16655 states, 11326 states have (on average 1.4171817058096414) internal successors, (16051), 11553 states have internal predecessors, (16051), 4359 states have call successors, (4359), 977 states have call predecessors, (4359), 969 states have return successors, (4358), 4332 states have call predecessors, (4358), 4358 states have call successors, (4358) [2022-11-19 07:38:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16655 states to 16655 states and 24768 transitions. [2022-11-19 07:38:42,560 INFO L78 Accepts]: Start accepts. Automaton has 16655 states and 24768 transitions. Word has length 553 [2022-11-19 07:38:42,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:42,562 INFO L495 AbstractCegarLoop]: Abstraction has 16655 states and 24768 transitions. [2022-11-19 07:38:42,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16655 states and 24768 transitions. [2022-11-19 07:38:42,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-19 07:38:42,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:42,576 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 07:38:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:38:42,576 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:42,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:42,578 INFO L85 PathProgramCache]: Analyzing trace with hash 933399311, now seen corresponding path program 1 times [2022-11-19 07:38:42,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:42,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18869125] [2022-11-19 07:38:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7844 trivial. 0 not checked. [2022-11-19 07:38:43,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:43,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18869125] [2022-11-19 07:38:43,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18869125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:43,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:43,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:43,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779639800] [2022-11-19 07:38:43,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:43,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:43,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:43,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:43,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:43,459 INFO L87 Difference]: Start difference. First operand 16655 states and 24768 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-19 07:38:44,477 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 [] [2022-11-19 07:38:47,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:50,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:52,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:52,446 INFO L93 Difference]: Finished difference Result 49606 states and 73749 transitions. [2022-11-19 07:38:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 575 [2022-11-19 07:38:52,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:52,627 INFO L225 Difference]: With dead ends: 49606 [2022-11-19 07:38:52,627 INFO L226 Difference]: Without dead ends: 33040 [2022-11-19 07:38:52,701 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 [2022-11-19 07:38:52,702 INFO L413 NwaCegarLoop]: 3755 mSDtfsCounter, 3274 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:52,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 6661 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-19 07:38:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33040 states. [2022-11-19 07:38:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33040 to 33035. [2022-11-19 07:38:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33035 states, 22452 states have (on average 1.4169339034384465) internal successors, (31813), 22907 states have internal predecessors, (31813), 8645 states have call successors, (8645), 1953 states have call predecessors, (8645), 1937 states have return successors, (8644), 8590 states have call predecessors, (8644), 8644 states have call successors, (8644) [2022-11-19 07:38:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33035 states to 33035 states and 49102 transitions. [2022-11-19 07:38:54,713 INFO L78 Accepts]: Start accepts. Automaton has 33035 states and 49102 transitions. Word has length 575 [2022-11-19 07:38:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:54,714 INFO L495 AbstractCegarLoop]: Abstraction has 33035 states and 49102 transitions. [2022-11-19 07:38:54,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-19 07:38:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 33035 states and 49102 transitions. [2022-11-19 07:38:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-11-19 07:38:54,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:54,721 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:54,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:38:54,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:54,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1883108441, now seen corresponding path program 1 times [2022-11-19 07:38:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:54,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309958697] [2022-11-19 07:38:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:54,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7848 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7848 trivial. 0 not checked. [2022-11-19 07:38:55,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309958697] [2022-11-19 07:38:55,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309958697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:55,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:55,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:55,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292138931] [2022-11-19 07:38:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:55,765 INFO L87 Difference]: Start difference. First operand 33035 states and 49102 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-19 07:38:57,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:04,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:07,873 INFO L93 Difference]: Finished difference Result 98265 states and 146002 transitions. [2022-11-19 07:39:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:39:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 581 [2022-11-19 07:39:07,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:08,285 INFO L225 Difference]: With dead ends: 98265 [2022-11-19 07:39:08,286 INFO L226 Difference]: Without dead ends: 65319 [2022-11-19 07:39:08,430 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 [2022-11-19 07:39:08,435 INFO L413 NwaCegarLoop]: 5328 mSDtfsCounter, 3225 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:08,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3226 Valid, 8234 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 847 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 07:39:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65319 states. [2022-11-19 07:39:11,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65319 to 65307. [2022-11-19 07:39:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65307 states, 44444 states have (on average 1.4181666816668166) internal successors, (63029), 45339 states have internal predecessors, (63029), 16989 states have call successors, (16989), 3905 states have call predecessors, (16989), 3873 states have return successors, (16988), 16878 states have call predecessors, (16988), 16988 states have call successors, (16988) [2022-11-19 07:39:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65307 states to 65307 states and 97006 transitions. [2022-11-19 07:39:12,790 INFO L78 Accepts]: Start accepts. Automaton has 65307 states and 97006 transitions. Word has length 581 [2022-11-19 07:39:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:12,792 INFO L495 AbstractCegarLoop]: Abstraction has 65307 states and 97006 transitions. [2022-11-19 07:39:12,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-19 07:39:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 65307 states and 97006 transitions. [2022-11-19 07:39:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-19 07:39:12,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:12,798 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 42, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:12,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:39:12,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:39:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1002971185, now seen corresponding path program 1 times [2022-11-19 07:39:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:12,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058278455] [2022-11-19 07:39:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8806 trivial. 0 not checked. [2022-11-19 07:39:14,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:14,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058278455] [2022-11-19 07:39:14,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058278455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:14,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:14,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:39:14,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657048930] [2022-11-19 07:39:14,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:14,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:39:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:39:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:39:14,064 INFO L87 Difference]: Start difference. First operand 65307 states and 97006 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-19 07:39:22,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:27,109 INFO L93 Difference]: Finished difference Result 189793 states and 281763 transitions. [2022-11-19 07:39:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:39:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 599 [2022-11-19 07:39:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:28,099 INFO L225 Difference]: With dead ends: 189793 [2022-11-19 07:39:28,099 INFO L226 Difference]: Without dead ends: 124575 [2022-11-19 07:39:28,339 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 [2022-11-19 07:39:28,340 INFO L413 NwaCegarLoop]: 5579 mSDtfsCounter, 3179 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3180 SdHoareTripleChecker+Valid, 8485 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:28,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3180 Valid, 8485 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 861 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 07:39:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124575 states. [2022-11-19 07:39:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124575 to 124563. [2022-11-19 07:39:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124563 states, 84748 states have (on average 1.4182045593996317) internal successors, (120190), 86455 states have internal predecessors, (120190), 32329 states have call successors, (32329), 7547 states have call predecessors, (32329), 7485 states have return successors, (32328), 32112 states have call predecessors, (32328), 32328 states have call successors, (32328) [2022-11-19 07:39:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124563 states to 124563 states and 184847 transitions. [2022-11-19 07:39:34,986 INFO L78 Accepts]: Start accepts. Automaton has 124563 states and 184847 transitions. Word has length 599 [2022-11-19 07:39:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 124563 states and 184847 transitions. [2022-11-19 07:39:34,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-19 07:39:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 124563 states and 184847 transitions. [2022-11-19 07:39:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2022-11-19 07:39:34,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:34,995 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 07:39:34,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:39:34,996 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:39:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:34,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1807774773, now seen corresponding path program 1 times [2022-11-19 07:39:34,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:34,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176258525] [2022-11-19 07:39:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:34,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 11326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11326 trivial. 0 not checked. [2022-11-19 07:39:36,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176258525] [2022-11-19 07:39:36,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176258525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:36,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:36,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:39:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040261797] [2022-11-19 07:39:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:36,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:39:36,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:36,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:39:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:39:36,464 INFO L87 Difference]: Start difference. First operand 124563 states and 184847 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-19 07:39:38,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:43,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:44,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:39:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:50,215 INFO L93 Difference]: Finished difference Result 126311 states and 187411 transitions. [2022-11-19 07:39:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:39:50,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 649 [2022-11-19 07:39:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:50,874 INFO L225 Difference]: With dead ends: 126311 [2022-11-19 07:39:50,874 INFO L226 Difference]: Without dead ends: 126308 [2022-11-19 07:39:50,924 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 [2022-11-19 07:39:50,925 INFO L413 NwaCegarLoop]: 3526 mSDtfsCounter, 3185 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:50,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5842 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-19 07:39:51,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126308 states.