./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--video--fbdev--via--viafb.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_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/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_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/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_20559b6d-068c-4912-993d-f425bb241df1/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 d9fdcdadedcf7a4ab4459e18b64bd95802926f5ef57392201c9d32fe3875db55 --- 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 07:02:13,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:02:13,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:02:13,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:02:13,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:02:13,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:02:13,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:02:13,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:02:13,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:02:13,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:02:13,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:02:13,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:02:13,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:02:13,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:02:13,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:02:13,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:02:13,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:02:13,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:02:13,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:02:13,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:02:13,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:02:13,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:02:13,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:02:13,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:02:13,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:02:13,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:02:13,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:02:13,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:02:13,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:02:13,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:02:13,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:02:13,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:02:13,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:02:13,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:02:13,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:02:13,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:02:13,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:02:13,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:02:13,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:02:13,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:02:13,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:02:13,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:02:13,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:02:13,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:02:13,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:02:13,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:02:13,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:02:13,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:02:13,172 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:02:13,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:02:13,172 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:02:13,173 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:02:13,173 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:02:13,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:02:13,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:02:13,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:02:13,174 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:02:13,174 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:02:13,174 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:02:13,174 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:02:13,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:02:13,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:02:13,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:02:13,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:02:13,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:02:13,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:02:13,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:02:13,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:02:13,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:02:13,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:02:13,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:02:13,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:02:13,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:02:13,185 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:02:13,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:02:13,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:02:13,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:02:13,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:02:13,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:02:13,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:02:13,187 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_20559b6d-068c-4912-993d-f425bb241df1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9fdcdadedcf7a4ab4459e18b64bd95802926f5ef57392201c9d32fe3875db55 [2022-11-19 07:02:13,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:02:13,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:02:13,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:02:13,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:02:13,530 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:02:13,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 07:02:13,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/data/73e641014/711a5da8769844229853ab70b72556ee/FLAGb3ef84374 [2022-11-19 07:02:14,635 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:02:14,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 07:02:14,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/data/73e641014/711a5da8769844229853ab70b72556ee/FLAGb3ef84374 [2022-11-19 07:02:14,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/data/73e641014/711a5da8769844229853ab70b72556ee [2022-11-19 07:02:14,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:02:14,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:02:14,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:02:14,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:02:14,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:02:14,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:02:14" (1/1) ... [2022-11-19 07:02:14,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50994afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:14, skipping insertion in model container [2022-11-19 07:02:14,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:02:14" (1/1) ... [2022-11-19 07:02:14,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:02:15,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:02:19,929 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_20559b6d-068c-4912-993d-f425bb241df1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[492049,492062] [2022-11-19 07:02:20,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:02:20,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:02:20,867 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_20559b6d-068c-4912-993d-f425bb241df1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[492049,492062] [2022-11-19 07:02:20,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:02:21,263 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:02:21,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21 WrapperNode [2022-11-19 07:02:21,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:02:21,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:02:21,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:02:21,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:02:21,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:21,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:22,115 INFO L138 Inliner]: procedures = 538, calls = 9925, calls flagged for inlining = 285, calls inlined = 265, statements flattened = 17474 [2022-11-19 07:02:22,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:02:22,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:02:22,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:02:22,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:02:22,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:22,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:22,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:22,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:22,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:23,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:23,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:23,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:23,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:02:23,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:02:23,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:02:23,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:02:23,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (1/1) ... [2022-11-19 07:02:23,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:02:23,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:02:23,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:02:23,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:02:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2022-11-19 07:02:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2022-11-19 07:02:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 07:02:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-19 07:02:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-19 07:02:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2022-11-19 07:02:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2022-11-19 07:02:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:02:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:02:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2022-11-19 07:02:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2022-11-19 07:02:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 07:02:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 07:02:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:02:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:02:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2022-11-19 07:02:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2022-11-19 07:02:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2022-11-19 07:02:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2022-11-19 07:02:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-19 07:02:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-19 07:02:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2022-11-19 07:02:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2022-11-19 07:02:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2022-11-19 07:02:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2022-11-19 07:02:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2022-11-19 07:02:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2022-11-19 07:02:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2022-11-19 07:02:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2022-11-19 07:02:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2022-11-19 07:02:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2022-11-19 07:02:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2022-11-19 07:02:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2022-11-19 07:02:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-19 07:02:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-19 07:02:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2022-11-19 07:02:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2022-11-19 07:02:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2022-11-19 07:02:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2022-11-19 07:02:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2022-11-19 07:02:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2022-11-19 07:02:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:02:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2022-11-19 07:02:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2022-11-19 07:02:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2022-11-19 07:02:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2022-11-19 07:02:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2022-11-19 07:02:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2022-11-19 07:02:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-19 07:02:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-19 07:02:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2022-11-19 07:02:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2022-11-19 07:02:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2022-11-19 07:02:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2022-11-19 07:02:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:02:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:02:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:02:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:02:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2022-11-19 07:02:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2022-11-19 07:02:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2022-11-19 07:02:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2022-11-19 07:02:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:02:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:02:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:02:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2022-11-19 07:02:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2022-11-19 07:02:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2022-11-19 07:02:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2022-11-19 07:02:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2022-11-19 07:02:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2022-11-19 07:02:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2022-11-19 07:02:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2022-11-19 07:02:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2022-11-19 07:02:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2022-11-19 07:02:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 07:02:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 07:02:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:02:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:02:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2022-11-19 07:02:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2022-11-19 07:02:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:02:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:02:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2022-11-19 07:02:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2022-11-19 07:02:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:02:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-19 07:02:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-19 07:02:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-19 07:02:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-19 07:02:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:02:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2022-11-19 07:02:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2022-11-19 07:02:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2022-11-19 07:02:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2022-11-19 07:02:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2022-11-19 07:02:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2022-11-19 07:02:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:02:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2022-11-19 07:02:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2022-11-19 07:02:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2022-11-19 07:02:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2022-11-19 07:02:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2022-11-19 07:02:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2022-11-19 07:02:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:02:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:02:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2022-11-19 07:02:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2022-11-19 07:02:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:02:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:02:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2022-11-19 07:02:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2022-11-19 07:02:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:02:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:02:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:02:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:02:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2022-11-19 07:02:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2022-11-19 07:02:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-19 07:02:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-19 07:02:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2022-11-19 07:02:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2022-11-19 07:02:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-19 07:02:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-19 07:02:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2022-11-19 07:02:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2022-11-19 07:02:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2022-11-19 07:02:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2022-11-19 07:02:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:02:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:02:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:02:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2022-11-19 07:02:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2022-11-19 07:02:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-19 07:02:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-19 07:02:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2022-11-19 07:02:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2022-11-19 07:02:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-19 07:02:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-19 07:02:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:02:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2022-11-19 07:02:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2022-11-19 07:02:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:02:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:02:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:02:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2022-11-19 07:02:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2022-11-19 07:02:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:02:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:02:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2022-11-19 07:02:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2022-11-19 07:02:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:02:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:02:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2022-11-19 07:02:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2022-11-19 07:02:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2022-11-19 07:02:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2022-11-19 07:02:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2022-11-19 07:02:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2022-11-19 07:02:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2022-11-19 07:02:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2022-11-19 07:02:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2022-11-19 07:02:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2022-11-19 07:02:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2022-11-19 07:02:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2022-11-19 07:02:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2022-11-19 07:02:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2022-11-19 07:02:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:02:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:02:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2022-11-19 07:02:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2022-11-19 07:02:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2022-11-19 07:02:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2022-11-19 07:02:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2022-11-19 07:02:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2022-11-19 07:02:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2022-11-19 07:02:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2022-11-19 07:02:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2022-11-19 07:02:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2022-11-19 07:02:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:02:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:02:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2022-11-19 07:02:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2022-11-19 07:02:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:02:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:02:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2022-11-19 07:02:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2022-11-19 07:02:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2022-11-19 07:02:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2022-11-19 07:02:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-19 07:02:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-19 07:02:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2022-11-19 07:02:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2022-11-19 07:02:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-19 07:02:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-19 07:02:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:02:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:02:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:02:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:02:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-19 07:02:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-19 07:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2022-11-19 07:02:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2022-11-19 07:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2022-11-19 07:02:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2022-11-19 07:02:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2022-11-19 07:02:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2022-11-19 07:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 07:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 07:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2022-11-19 07:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2022-11-19 07:02:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2022-11-19 07:02:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2022-11-19 07:02:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2022-11-19 07:02:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2022-11-19 07:02:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2022-11-19 07:02:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2022-11-19 07:02:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2022-11-19 07:02:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2022-11-19 07:02:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2022-11-19 07:02:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2022-11-19 07:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2022-11-19 07:02:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2022-11-19 07:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:02:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:02:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-11-19 07:02:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-11-19 07:02:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:02:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:02:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-11-19 07:02:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-11-19 07:02:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-19 07:02:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-19 07:02:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2022-11-19 07:02:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2022-11-19 07:02:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-19 07:02:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-19 07:02:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:02:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:02:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:02:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:02:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2022-11-19 07:02:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2022-11-19 07:02:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2022-11-19 07:02:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2022-11-19 07:02:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:02:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:02:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:02:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2022-11-19 07:02:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2022-11-19 07:02:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-19 07:02:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-19 07:02:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:02:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 07:02:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 07:02:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2022-11-19 07:02:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2022-11-19 07:02:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-19 07:02:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-19 07:02:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-19 07:02:23,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-19 07:02:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2022-11-19 07:02:23,499 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2022-11-19 07:02:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:02:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2022-11-19 07:02:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2022-11-19 07:02:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2022-11-19 07:02:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2022-11-19 07:02:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2022-11-19 07:02:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2022-11-19 07:02:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:02:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:02:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:02:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:02:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2022-11-19 07:02:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2022-11-19 07:02:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2022-11-19 07:02:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2022-11-19 07:02:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2022-11-19 07:02:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2022-11-19 07:02:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2022-11-19 07:02:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2022-11-19 07:02:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2022-11-19 07:02:23,502 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2022-11-19 07:02:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2022-11-19 07:02:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2022-11-19 07:02:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2022-11-19 07:02:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2022-11-19 07:02:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2022-11-19 07:02:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2022-11-19 07:02:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-19 07:02:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-19 07:02:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2022-11-19 07:02:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2022-11-19 07:02:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-19 07:02:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-19 07:02:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2022-11-19 07:02:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2022-11-19 07:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2022-11-19 07:02:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2022-11-19 07:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2022-11-19 07:02:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2022-11-19 07:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2022-11-19 07:02:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2022-11-19 07:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2022-11-19 07:02:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2022-11-19 07:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2022-11-19 07:02:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2022-11-19 07:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:02:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2022-11-19 07:02:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2022-11-19 07:02:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2022-11-19 07:02:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2022-11-19 07:02:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:02:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-19 07:02:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-19 07:02:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-19 07:02:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-19 07:02:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:02:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:02:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2022-11-19 07:02:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2022-11-19 07:02:23,508 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2022-11-19 07:02:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2022-11-19 07:02:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:02:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:02:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2022-11-19 07:02:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2022-11-19 07:02:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:02:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:02:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2022-11-19 07:02:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2022-11-19 07:02:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:02:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:02:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2022-11-19 07:02:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2022-11-19 07:02:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2022-11-19 07:02:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2022-11-19 07:02:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2022-11-19 07:02:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2022-11-19 07:02:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 07:02:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 07:02:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2022-11-19 07:02:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2022-11-19 07:02:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2022-11-19 07:02:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2022-11-19 07:02:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-19 07:02:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-19 07:02:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-19 07:02:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-19 07:02:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-19 07:02:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-19 07:02:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2022-11-19 07:02:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2022-11-19 07:02:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2022-11-19 07:02:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2022-11-19 07:02:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2022-11-19 07:02:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2022-11-19 07:02:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2022-11-19 07:02:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2022-11-19 07:02:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2022-11-19 07:02:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2022-11-19 07:02:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2022-11-19 07:02:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2022-11-19 07:02:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2022-11-19 07:02:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2022-11-19 07:02:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:02:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:02:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2022-11-19 07:02:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2022-11-19 07:02:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2022-11-19 07:02:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2022-11-19 07:02:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 07:02:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 07:02:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2022-11-19 07:02:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2022-11-19 07:02:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2022-11-19 07:02:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2022-11-19 07:02:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:02:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:02:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2022-11-19 07:02:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2022-11-19 07:02:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:02:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:02:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:02:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2022-11-19 07:02:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2022-11-19 07:02:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2022-11-19 07:02:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2022-11-19 07:02:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2022-11-19 07:02:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2022-11-19 07:02:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2022-11-19 07:02:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2022-11-19 07:02:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2022-11-19 07:02:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2022-11-19 07:02:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2022-11-19 07:02:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2022-11-19 07:02:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-19 07:02:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-19 07:02:25,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:02:25,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:02:29,845 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:03:19,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:03:29,950 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:03:29,950 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:03:29,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:29 BoogieIcfgContainer [2022-11-19 07:03:29,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:03:29,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:03:29,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:03:29,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:03:29,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:02:14" (1/3) ... [2022-11-19 07:03:29,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd2daf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:29, skipping insertion in model container [2022-11-19 07:03:29,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:02:21" (2/3) ... [2022-11-19 07:03:29,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd2daf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:29, skipping insertion in model container [2022-11-19 07:03:29,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:29" (3/3) ... [2022-11-19 07:03:29,968 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 07:03:29,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:03:29,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:03:30,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:03:30,116 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;@7d34ab47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:03:30,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:03:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 3445 states, 2079 states have (on average 1.4045214045214045) internal successors, (2920), 2257 states have internal predecessors, (2920), 1174 states have call successors, (1174), 191 states have call predecessors, (1174), 190 states have return successors, (1155), 1094 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-11-19 07:03:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-19 07:03:30,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:30,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:03:30,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:03:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1239554247, now seen corresponding path program 1 times [2022-11-19 07:03:30,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:30,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919195483] [2022-11-19 07:03:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 07:03:32,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:32,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919195483] [2022-11-19 07:03:32,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919195483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:32,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:32,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:03:32,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741138915] [2022-11-19 07:03:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:32,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:03:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:03:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:03:32,441 INFO L87 Difference]: Start difference. First operand has 3445 states, 2079 states have (on average 1.4045214045214045) internal successors, (2920), 2257 states have internal predecessors, (2920), 1174 states have call successors, (1174), 191 states have call predecessors, (1174), 190 states have return successors, (1155), 1094 states have call predecessors, (1155), 1155 states have call successors, (1155) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:03:34,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:38,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:42,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:44,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:47,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:49,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:03:52,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:54,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:03:57,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:00,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:01,429 WARN L539 Checker$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 07:04:02,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:05,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:04:07,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:08,637 INFO L93 Difference]: Finished difference Result 9568 states and 14641 transitions. [2022-11-19 07:04:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:04:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 110 [2022-11-19 07:04:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:08,698 INFO L225 Difference]: With dead ends: 9568 [2022-11-19 07:04:08,699 INFO L226 Difference]: Without dead ends: 6079 [2022-11-19 07:04:08,723 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 07:04:08,726 INFO L413 NwaCegarLoop]: 5722 mSDtfsCounter, 4095 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4103 SdHoareTripleChecker+Valid, 10405 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:08,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4103 Valid, 10405 Invalid, 1091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1079 Invalid, 9 Unknown, 0 Unchecked, 35.6s Time] [2022-11-19 07:04:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6079 states. [2022-11-19 07:04:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6079 to 6072. [2022-11-19 07:04:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 3684 states have (on average 1.4033659066232356) internal successors, (5170), 3980 states have internal predecessors, (5170), 2051 states have call successors, (2051), 337 states have call predecessors, (2051), 336 states have return successors, (2051), 1934 states have call predecessors, (2051), 2050 states have call successors, (2051) [2022-11-19 07:04:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 9272 transitions. [2022-11-19 07:04:09,455 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 9272 transitions. Word has length 110 [2022-11-19 07:04:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:09,458 INFO L495 AbstractCegarLoop]: Abstraction has 6072 states and 9272 transitions. [2022-11-19 07:04:09,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:04:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 9272 transitions. [2022-11-19 07:04:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-19 07:04:09,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:09,484 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:09,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:04:09,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:09,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash 870566924, now seen corresponding path program 1 times [2022-11-19 07:04:09,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:09,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984988900] [2022-11-19 07:04:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:09,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 07:04:10,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:10,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984988900] [2022-11-19 07:04:10,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984988900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:10,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:10,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:04:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055574675] [2022-11-19 07:04:10,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:10,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:04:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:04:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:04:10,963 INFO L87 Difference]: Start difference. First operand 6072 states and 9272 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:04:13,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:16,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:20,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:23,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:25,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:28,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:31,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:04:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:34,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:36,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:38,383 WARN L539 Checker$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 07:04:40,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:42,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:44,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:04:46,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:48,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:04:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:50,663 INFO L93 Difference]: Finished difference Result 16946 states and 25762 transitions. [2022-11-19 07:04:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:04:50,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 196 [2022-11-19 07:04:50,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:50,740 INFO L225 Difference]: With dead ends: 16946 [2022-11-19 07:04:50,740 INFO L226 Difference]: Without dead ends: 10879 [2022-11-19 07:04:50,778 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 07:04:50,779 INFO L413 NwaCegarLoop]: 5842 mSDtfsCounter, 4070 mSDsluCounter, 4648 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 10490 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:50,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 10490 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1069 Invalid, 7 Unknown, 0 Unchecked, 39.1s Time] [2022-11-19 07:04:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2022-11-19 07:04:51,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 10871. [2022-11-19 07:04:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10871 states, 6563 states have (on average 1.392655797653512) internal successors, (9140), 7080 states have internal predecessors, (9140), 3674 states have call successors, (3674), 634 states have call predecessors, (3674), 633 states have return successors, (3674), 3465 states have call predecessors, (3674), 3673 states have call successors, (3674) [2022-11-19 07:04:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10871 states to 10871 states and 16488 transitions. [2022-11-19 07:04:51,651 INFO L78 Accepts]: Start accepts. Automaton has 10871 states and 16488 transitions. Word has length 196 [2022-11-19 07:04:51,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:51,653 INFO L495 AbstractCegarLoop]: Abstraction has 10871 states and 16488 transitions. [2022-11-19 07:04:51,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:04:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 10871 states and 16488 transitions. [2022-11-19 07:04:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-19 07:04:51,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:51,672 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:51,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:04:51,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash -985950736, now seen corresponding path program 1 times [2022-11-19 07:04:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507893471] [2022-11-19 07:04:51,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-19 07:04:53,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:53,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507893471] [2022-11-19 07:04:53,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507893471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:53,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:53,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:04:53,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849288003] [2022-11-19 07:04:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:53,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:04:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:04:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:04:53,255 INFO L87 Difference]: Start difference. First operand 10871 states and 16488 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:04:55,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:01,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:03,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:05,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:11,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:13,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:14,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:16,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:18,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:23,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:05:25,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:28,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:31,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:05:33,531 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 07:05:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:36,766 INFO L93 Difference]: Finished difference Result 25037 states and 38330 transitions. [2022-11-19 07:05:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:05:36,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 193 [2022-11-19 07:05:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:36,859 INFO L225 Difference]: With dead ends: 25037 [2022-11-19 07:05:36,860 INFO L226 Difference]: Without dead ends: 14171 [2022-11-19 07:05:36,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:05:36,920 INFO L413 NwaCegarLoop]: 5658 mSDtfsCounter, 2239 mSDsluCounter, 9676 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 717 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 15334 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:36,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2239 Valid, 15334 Invalid, 2313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [717 Valid, 1587 Invalid, 9 Unknown, 0 Unchecked, 43.0s Time] [2022-11-19 07:05:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14171 states. [2022-11-19 07:05:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14171 to 10879. [2022-11-19 07:05:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10879 states, 6571 states have (on average 1.3921777507228732) internal successors, (9148), 7088 states have internal predecessors, (9148), 3674 states have call successors, (3674), 634 states have call predecessors, (3674), 633 states have return successors, (3674), 3465 states have call predecessors, (3674), 3673 states have call successors, (3674) [2022-11-19 07:05:37,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10879 states to 10879 states and 16496 transitions. [2022-11-19 07:05:37,862 INFO L78 Accepts]: Start accepts. Automaton has 10879 states and 16496 transitions. Word has length 193 [2022-11-19 07:05:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:37,862 INFO L495 AbstractCegarLoop]: Abstraction has 10879 states and 16496 transitions. [2022-11-19 07:05:37,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:05:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 10879 states and 16496 transitions. [2022-11-19 07:05:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 07:05:37,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:37,879 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:37,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:05:37,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:37,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:37,881 INFO L85 PathProgramCache]: Analyzing trace with hash -89560630, now seen corresponding path program 1 times [2022-11-19 07:05:37,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:37,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288716439] [2022-11-19 07:05:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:37,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-19 07:05:40,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:40,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288716439] [2022-11-19 07:05:40,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288716439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:05:40,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793745983] [2022-11-19 07:05:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:40,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:40,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:40,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:05:40,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:05:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:45,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 13495 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:05:45,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-19 07:05:45,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:05:45,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793745983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:05:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:05:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51426464] [2022-11-19 07:05:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:45,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:05:45,709 INFO L87 Difference]: Start difference. First operand 10879 states and 16496 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:05:47,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:56,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:05:59,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:01,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:04,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:06:06,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:06:07,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:09,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:11,481 WARN L539 Checker$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 07:06:15,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:17,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:18,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:19,775 INFO L93 Difference]: Finished difference Result 21755 states and 32987 transitions. [2022-11-19 07:06:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:19,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 233 [2022-11-19 07:06:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:19,832 INFO L225 Difference]: With dead ends: 21755 [2022-11-19 07:06:19,832 INFO L226 Difference]: Without dead ends: 10877 [2022-11-19 07:06:19,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:06:19,880 INFO L413 NwaCegarLoop]: 4684 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9364 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:19,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9364 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1012 Invalid, 9 Unknown, 0 Unchecked, 33.7s Time] [2022-11-19 07:06:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-11-19 07:06:20,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 10877. [2022-11-19 07:06:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 6569 states have (on average 1.391688232607703) internal successors, (9142), 7086 states have internal predecessors, (9142), 3674 states have call successors, (3674), 634 states have call predecessors, (3674), 633 states have return successors, (3674), 3465 states have call predecessors, (3674), 3673 states have call successors, (3674) [2022-11-19 07:06:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 16490 transitions. [2022-11-19 07:06:20,687 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 16490 transitions. Word has length 233 [2022-11-19 07:06:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:20,688 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 16490 transitions. [2022-11-19 07:06:20,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:06:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 16490 transitions. [2022-11-19 07:06:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-11-19 07:06:20,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:20,724 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 11, 11, 11, 11, 11, 11, 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] [2022-11-19 07:06:20,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:20,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:06:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1613523629, now seen corresponding path program 1 times [2022-11-19 07:06:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:20,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026483915] [2022-11-19 07:06:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3148 trivial. 0 not checked. [2022-11-19 07:06:22,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:22,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026483915] [2022-11-19 07:06:22,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026483915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:22,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:22,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:06:22,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017361962] [2022-11-19 07:06:22,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:22,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:22,666 INFO L87 Difference]: Start difference. First operand 10877 states and 16490 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-19 07:06:24,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:28,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:31,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:34,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:37,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:39,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:06:41,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:06:43,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:45,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:47,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:52,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:55,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:06:58,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:00,833 INFO L93 Difference]: Finished difference Result 20938 states and 31861 transitions. [2022-11-19 07:07:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 455 [2022-11-19 07:07:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:00,943 INFO L225 Difference]: With dead ends: 20938 [2022-11-19 07:07:00,944 INFO L226 Difference]: Without dead ends: 20935 [2022-11-19 07:07:00,954 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 07:07:00,955 INFO L413 NwaCegarLoop]: 5799 mSDtfsCounter, 4541 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 10458 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:00,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 10458 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1011 Invalid, 10 Unknown, 0 Unchecked, 37.5s Time] [2022-11-19 07:07:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20935 states. [2022-11-19 07:07:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20935 to 20865. [2022-11-19 07:07:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20865 states, 12641 states have (on average 1.3990981726129261) internal successors, (17686), 13666 states have internal predecessors, (17686), 7008 states have call successors, (7008), 1220 states have call predecessors, (7008), 1215 states have return successors, (7050), 6587 states have call predecessors, (7050), 7007 states have call successors, (7050) [2022-11-19 07:07:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20865 states to 20865 states and 31744 transitions. [2022-11-19 07:07:02,413 INFO L78 Accepts]: Start accepts. Automaton has 20865 states and 31744 transitions. Word has length 455 [2022-11-19 07:07:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:02,419 INFO L495 AbstractCegarLoop]: Abstraction has 20865 states and 31744 transitions. [2022-11-19 07:07:02,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-19 07:07:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20865 states and 31744 transitions. [2022-11-19 07:07:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-19 07:07:02,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:02,520 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 14, 14, 11, 11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:02,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:07:02,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:02,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1296432413, now seen corresponding path program 1 times [2022-11-19 07:07:02,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:02,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337498083] [2022-11-19 07:07:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:02,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3271 trivial. 0 not checked. [2022-11-19 07:07:04,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:04,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337498083] [2022-11-19 07:07:04,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337498083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:04,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:04,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:04,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375441454] [2022-11-19 07:07:04,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:04,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:04,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:04,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:04,698 INFO L87 Difference]: Start difference. First operand 20865 states and 31744 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-19 07:07:06,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:15,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:17,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:19,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:22,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:07:25,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:27,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:07:28,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:30,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:36,047 WARN L539 Checker$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 07:07:38,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:41,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:43,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:46,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:07:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:07:47,491 INFO L93 Difference]: Finished difference Result 51065 states and 77737 transitions. [2022-11-19 07:07:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:07:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 547 [2022-11-19 07:07:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:07:47,645 INFO L225 Difference]: With dead ends: 51065 [2022-11-19 07:07:47,646 INFO L226 Difference]: Without dead ends: 30205 [2022-11-19 07:07:47,730 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 07:07:47,731 INFO L413 NwaCegarLoop]: 5665 mSDtfsCounter, 3989 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3992 SdHoareTripleChecker+Valid, 10307 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:07:47,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3992 Valid, 10307 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1068 Invalid, 9 Unknown, 0 Unchecked, 41.7s Time] [2022-11-19 07:07:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30205 states. [2022-11-19 07:07:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30205 to 30193. [2022-11-19 07:07:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30193 states, 18281 states have (on average 1.401619167441606) internal successors, (25623), 19792 states have internal predecessors, (25623), 10153 states have call successors, (10153), 1765 states have call predecessors, (10153), 1758 states have return successors, (10209), 9532 states have call predecessors, (10209), 10152 states have call successors, (10209) [2022-11-19 07:07:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30193 states to 30193 states and 45985 transitions. [2022-11-19 07:07:49,905 INFO L78 Accepts]: Start accepts. Automaton has 30193 states and 45985 transitions. Word has length 547 [2022-11-19 07:07:49,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:07:49,907 INFO L495 AbstractCegarLoop]: Abstraction has 30193 states and 45985 transitions. [2022-11-19 07:07:49,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-19 07:07:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 30193 states and 45985 transitions. [2022-11-19 07:07:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2022-11-19 07:07:50,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:07:50,051 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 22, 22, 21, 21, 21, 21, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:07:50,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:07:50,051 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:07:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:07:50,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1044283664, now seen corresponding path program 1 times [2022-11-19 07:07:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:07:50,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225002557] [2022-11-19 07:07:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:07:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:07:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:07:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5352 trivial. 0 not checked. [2022-11-19 07:07:52,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:07:52,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225002557] [2022-11-19 07:07:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225002557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:07:52,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:07:52,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:07:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038738587] [2022-11-19 07:07:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:07:52,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:07:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:07:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:07:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:07:52,307 INFO L87 Difference]: Start difference. First operand 30193 states and 45985 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 07:07:54,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:00,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:01,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:04,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:07,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:08:08,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:11,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:08:12,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:13,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:18,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:20,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:28,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:30,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:31,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:08:33,108 INFO L93 Difference]: Finished difference Result 45103 states and 68804 transitions. [2022-11-19 07:08:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:08:33,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 633 [2022-11-19 07:08:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:08:33,338 INFO L225 Difference]: With dead ends: 45103 [2022-11-19 07:08:33,338 INFO L226 Difference]: Without dead ends: 45100 [2022-11-19 07:08:33,361 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 07:08:33,362 INFO L413 NwaCegarLoop]: 5758 mSDtfsCounter, 4693 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4698 SdHoareTripleChecker+Valid, 10417 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:08:33,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4698 Valid, 10417 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1007 Invalid, 7 Unknown, 0 Unchecked, 39.5s Time] [2022-11-19 07:08:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45100 states. [2022-11-19 07:08:35,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45100 to 44955. [2022-11-19 07:08:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44955 states, 27257 states have (on average 1.4039696224822982) internal successors, (38268), 29529 states have internal predecessors, (38268), 15104 states have call successors, (15104), 2602 states have call predecessors, (15104), 2593 states have return successors, (15215), 14170 states have call predecessors, (15215), 15103 states have call successors, (15215) [2022-11-19 07:08:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44955 states to 44955 states and 68587 transitions. [2022-11-19 07:08:36,108 INFO L78 Accepts]: Start accepts. Automaton has 44955 states and 68587 transitions. Word has length 633 [2022-11-19 07:08:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:08:36,110 INFO L495 AbstractCegarLoop]: Abstraction has 44955 states and 68587 transitions. [2022-11-19 07:08:36,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 07:08:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 44955 states and 68587 transitions. [2022-11-19 07:08:36,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2022-11-19 07:08:36,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:08:36,310 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 20, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:36,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:08:36,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:08:36,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:08:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1372398626, now seen corresponding path program 1 times [2022-11-19 07:08:36,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:08:36,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229387378] [2022-11-19 07:08:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:08:36,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:08:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:08:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 3452 trivial. 0 not checked. [2022-11-19 07:08:42,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:08:42,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229387378] [2022-11-19 07:08:42,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229387378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:08:42,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794290078] [2022-11-19 07:08:42,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:08:42,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:08:42,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:08:42,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:08:42,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:08:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:08:50,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 25410 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:08:50,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:08:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 3296 trivial. 0 not checked. [2022-11-19 07:08:51,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:08:51,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794290078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:08:51,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:08:51,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:08:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066280562] [2022-11-19 07:08:51,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:08:51,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:08:51,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:08:51,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:08:51,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:08:51,098 INFO L87 Difference]: Start difference. First operand 44955 states and 68587 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-19 07:08:53,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:01,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:05,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:07,411 WARN L539 Checker$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 07:09:09,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:09:12,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:09:14,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:18,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:21,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:23,342 WARN L539 Checker$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 07:09:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:24,645 INFO L93 Difference]: Finished difference Result 89905 states and 137167 transitions. [2022-11-19 07:09:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:09:24,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 902 [2022-11-19 07:09:24,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:25,003 INFO L225 Difference]: With dead ends: 89905 [2022-11-19 07:09:25,003 INFO L226 Difference]: Without dead ends: 44955 [2022-11-19 07:09:25,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:09:25,183 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 62 mSDsluCounter, 4606 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:25,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 9288 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 993 Invalid, 9 Unknown, 0 Unchecked, 32.1s Time] [2022-11-19 07:09:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44955 states. [2022-11-19 07:09:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44955 to 44955. [2022-11-19 07:09:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44955 states, 27257 states have (on average 1.4038228711890524) internal successors, (38264), 29525 states have internal predecessors, (38264), 15104 states have call successors, (15104), 2602 states have call predecessors, (15104), 2593 states have return successors, (15215), 14170 states have call predecessors, (15215), 15103 states have call successors, (15215) [2022-11-19 07:09:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44955 states to 44955 states and 68583 transitions. [2022-11-19 07:09:27,541 INFO L78 Accepts]: Start accepts. Automaton has 44955 states and 68583 transitions. Word has length 902 [2022-11-19 07:09:27,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:27,543 INFO L495 AbstractCegarLoop]: Abstraction has 44955 states and 68583 transitions. [2022-11-19 07:09:27,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-19 07:09:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 44955 states and 68583 transitions. [2022-11-19 07:09:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-11-19 07:09:27,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:27,667 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:09:27,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:09:27,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:27,868 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2132485109, now seen corresponding path program 1 times [2022-11-19 07:09:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:27,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144593211] [2022-11-19 07:09:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 3616 trivial. 0 not checked. [2022-11-19 07:09:33,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:33,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144593211] [2022-11-19 07:09:33,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144593211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:09:33,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689701275] [2022-11-19 07:09:33,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:33,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:09:33,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:09:33,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:09:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:42,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 25498 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:09:42,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:09:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 3466 trivial. 0 not checked. [2022-11-19 07:09:49,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:09:49,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689701275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:49,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:09:49,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-19 07:09:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537875871] [2022-11-19 07:09:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:49,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:09:49,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:09:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:09:49,197 INFO L87 Difference]: Start difference. First operand 44955 states and 68583 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 2 states have internal predecessors, (308), 2 states have call successors, (117), 2 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-11-19 07:09:51,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:56,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:09:58,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:01,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:03,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:10:07,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:10:08,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:11,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:15,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:18,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:21,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:24,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:25,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:29,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:31,719 INFO L93 Difference]: Finished difference Result 134802 states and 205682 transitions. [2022-11-19 07:10:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:10:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 2 states have internal predecessors, (308), 2 states have call successors, (117), 2 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 925 [2022-11-19 07:10:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:32,159 INFO L225 Difference]: With dead ends: 134802 [2022-11-19 07:10:32,160 INFO L226 Difference]: Without dead ends: 89852 [2022-11-19 07:10:32,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 928 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:10:32,496 INFO L413 NwaCegarLoop]: 5871 mSDtfsCounter, 4763 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 10547 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:32,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 10547 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1012 Invalid, 11 Unknown, 0 Unchecked, 39.5s Time] [2022-11-19 07:10:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89852 states. [2022-11-19 07:10:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89852 to 89830. [2022-11-19 07:10:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89830 states, 54470 states have (on average 1.4039654855883972) internal successors, (76474), 59005 states have internal predecessors, (76474), 30192 states have call successors, (30192), 5184 states have call predecessors, (30192), 5167 states have return successors, (30418), 28325 states have call predecessors, (30418), 30191 states have call successors, (30418) [2022-11-19 07:10:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89830 states to 89830 states and 137084 transitions. [2022-11-19 07:10:37,318 INFO L78 Accepts]: Start accepts. Automaton has 89830 states and 137084 transitions. Word has length 925 [2022-11-19 07:10:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:37,319 INFO L495 AbstractCegarLoop]: Abstraction has 89830 states and 137084 transitions. [2022-11-19 07:10:37,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 2 states have internal predecessors, (308), 2 states have call successors, (117), 2 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-11-19 07:10:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 89830 states and 137084 transitions. [2022-11-19 07:10:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2022-11-19 07:10:37,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:37,894 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:37,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:10:38,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-19 07:10:38,095 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:38,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash -549551955, now seen corresponding path program 1 times [2022-11-19 07:10:38,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:38,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863059152] [2022-11-19 07:10:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:38,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 3616 trivial. 0 not checked. [2022-11-19 07:10:42,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:42,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863059152] [2022-11-19 07:10:42,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863059152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:10:42,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287771092] [2022-11-19 07:10:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:42,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:10:42,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:10:42,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:10:42,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20559b6d-068c-4912-993d-f425bb241df1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:10:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:52,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 25540 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:10:52,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:10:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 3222 trivial. 0 not checked. [2022-11-19 07:10:59,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:10:59,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287771092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:59,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:10:59,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:10:59,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472149665] [2022-11-19 07:10:59,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:10:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:10:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:10:59,128 INFO L87 Difference]: Start difference. First operand 89830 states and 137084 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 3 states have call successors, (119), 3 states have call predecessors, (119), 3 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-11-19 07:11:01,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:12,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:15,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:17,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:19,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:21,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:24,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:11:27,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:30,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:11:32,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:36,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:38,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:41,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:43,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:49,387 INFO L93 Difference]: Finished difference Result 267271 states and 408094 transitions. [2022-11-19 07:11:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 3 states have call successors, (119), 3 states have call predecessors, (119), 3 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 927 [2022-11-19 07:11:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:50,707 INFO L225 Difference]: With dead ends: 267271 [2022-11-19 07:11:50,707 INFO L226 Difference]: Without dead ends: 177446 [2022-11-19 07:11:51,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 927 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:51,042 INFO L413 NwaCegarLoop]: 8463 mSDtfsCounter, 4571 mSDsluCounter, 4658 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 8 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 13121 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:51,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 13121 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1401 Invalid, 13 Unknown, 0 Unchecked, 44.5s Time] [2022-11-19 07:11:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177446 states.