./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--usb--gadget--udc--bdc--bdc.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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/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 f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:37:42,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:37:42,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:37:43,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:37:43,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:37:43,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:37:43,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:37:43,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:37:43,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:37:43,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:37:43,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:37:43,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:37:43,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:37:43,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:37:43,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:37:43,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:37:43,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:37:43,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:37:43,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:37:43,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:37:43,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:37:43,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:37:43,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:37:43,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:37:43,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:37:43,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:37:43,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:37:43,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:37:43,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:37:43,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:37:43,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:37:43,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:37:43,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:37:43,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:37:43,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:37:43,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:37:43,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:37:43,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:37:43,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:37:43,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:37:43,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:37:43,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:37:43,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:37:43,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:37:43,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:37:43,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:37:43,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:37:43,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:37:43,099 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:37:43,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:37:43,099 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:37:43,099 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:37:43,101 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:37:43,101 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:37:43,101 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:37:43,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:37:43,102 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:37:43,102 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:37:43,102 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:37:43,102 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:37:43,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:37:43,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:37:43,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:37:43,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:37:43,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:37:43,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:37:43,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:37:43,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:37:43,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:37:43,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:37:43,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:37:43,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:37:43,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:37:43,108 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:37:43,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:37:43,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:37:43,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:37:43,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:37:43,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:37:43,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:37:43,110 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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2022-11-19 07:37:43,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:37:43,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:37:43,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:37:43,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:37:43,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:37:43,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-19 07:37:43,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/data/f297820c0/fe65c7d118a84f9f859089f55d4d4a85/FLAG526f633d7 [2022-11-19 07:37:44,456 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:37:44,456 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-19 07:37:44,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/data/f297820c0/fe65c7d118a84f9f859089f55d4d4a85/FLAG526f633d7 [2022-11-19 07:37:44,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/data/f297820c0/fe65c7d118a84f9f859089f55d4d4a85 [2022-11-19 07:37:44,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:37:44,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:37:44,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:37:44,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:37:44,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:37:44,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:44" (1/1) ... [2022-11-19 07:37:44,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cfc7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:44, skipping insertion in model container [2022-11-19 07:37:44,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:44" (1/1) ... [2022-11-19 07:37:44,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:37:44,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:37:47,054 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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2022-11-19 07:37:47,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:37:47,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:37:47,685 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_fddd6d17-a8b5-4bc3-b607-affd8e186cff/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2022-11-19 07:37:47,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:37:47,777 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:37:47,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47 WrapperNode [2022-11-19 07:37:47,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:37:47,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:37:47,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:37:47,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:37:47,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:47,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,163 INFO L138 Inliner]: procedures = 274, calls = 5840, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6613 [2022-11-19 07:37:48,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:37:48,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:37:48,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:37:48,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:37:48,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:37:48,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:37:48,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:37:48,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:37:48,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2022-11-19 07:37:48,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:37:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:48,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:37:48,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:37:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2022-11-19 07:37:48,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2022-11-19 07:37:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2022-11-19 07:37:48,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2022-11-19 07:37:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2022-11-19 07:37:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2022-11-19 07:37:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:37:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:37:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2022-11-19 07:37:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2022-11-19 07:37:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:37:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:37:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-19 07:37:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-19 07:37:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 07:37:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 07:37:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2022-11-19 07:37:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2022-11-19 07:37:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:37:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:37:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-19 07:37:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-19 07:37:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2022-11-19 07:37:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2022-11-19 07:37:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2022-11-19 07:37:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2022-11-19 07:37:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:37:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:37:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:37:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:37:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2022-11-19 07:37:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2022-11-19 07:37:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:37:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:37:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-19 07:37:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-19 07:37:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2022-11-19 07:37:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2022-11-19 07:37:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2022-11-19 07:37:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2022-11-19 07:37:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2022-11-19 07:37:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2022-11-19 07:37:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2022-11-19 07:37:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2022-11-19 07:37:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-19 07:37:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-19 07:37:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:37:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:37:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:37:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2022-11-19 07:37:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2022-11-19 07:37:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:37:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 07:37:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 07:37:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:37:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2022-11-19 07:37:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:37:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2022-11-19 07:37:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2022-11-19 07:37:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2022-11-19 07:37:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2022-11-19 07:37:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:37:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:37:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:37:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:37:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2022-11-19 07:37:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2022-11-19 07:37:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:37:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:37:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2022-11-19 07:37:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2022-11-19 07:37:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:37:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:37:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2022-11-19 07:37:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2022-11-19 07:37:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2022-11-19 07:37:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2022-11-19 07:37:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2022-11-19 07:37:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2022-11-19 07:37:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2022-11-19 07:37:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2022-11-19 07:37:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:37:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:37:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2022-11-19 07:37:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2022-11-19 07:37:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 07:37:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 07:37:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:37:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2022-11-19 07:37:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2022-11-19 07:37:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2022-11-19 07:37:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2022-11-19 07:37:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2022-11-19 07:37:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2022-11-19 07:37:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2022-11-19 07:37:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2022-11-19 07:37:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2022-11-19 07:37:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2022-11-19 07:37:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:37:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:37:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:37:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:37:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2022-11-19 07:37:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2022-11-19 07:37:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:37:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:37:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:37:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:37:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:37:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:37:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:37:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:37:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 07:37:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:37:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:37:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-19 07:37:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-19 07:37:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:37:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2022-11-19 07:37:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2022-11-19 07:37:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2022-11-19 07:37:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2022-11-19 07:37:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:37:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:37:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:37:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2022-11-19 07:37:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2022-11-19 07:37:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2022-11-19 07:37:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2022-11-19 07:37:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-19 07:37:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-19 07:37:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2022-11-19 07:37:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2022-11-19 07:37:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2022-11-19 07:37:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2022-11-19 07:37:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2022-11-19 07:37:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2022-11-19 07:37:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2022-11-19 07:37:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2022-11-19 07:37:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2022-11-19 07:37:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2022-11-19 07:37:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2022-11-19 07:37:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2022-11-19 07:37:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:37:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:37:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2022-11-19 07:37:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2022-11-19 07:37:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2022-11-19 07:37:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2022-11-19 07:37:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:37:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2022-11-19 07:37:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2022-11-19 07:37:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:37:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:37:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2022-11-19 07:37:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2022-11-19 07:37:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2022-11-19 07:37:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2022-11-19 07:37:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2022-11-19 07:37:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2022-11-19 07:37:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:37:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:37:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2022-11-19 07:37:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2022-11-19 07:37:49,508 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:37:49,516 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:37:51,217 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:38:01,532 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:03,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:03,717 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:38:03,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:03 BoogieIcfgContainer [2022-11-19 07:38:03,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:03,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:03,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:03,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:03,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:44" (1/3) ... [2022-11-19 07:38:03,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65c34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:03, skipping insertion in model container [2022-11-19 07:38:03,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (2/3) ... [2022-11-19 07:38:03,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65c34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:03, skipping insertion in model container [2022-11-19 07:38:03,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:03" (3/3) ... [2022-11-19 07:38:03,731 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-19 07:38:03,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:03,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:38:03,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:03,864 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;@501b7e42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:03,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:38:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2022-11-19 07:38:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 07:38:03,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:03,906 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:03,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1302645763, now seen corresponding path program 1 times [2022-11-19 07:38:03,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:03,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884781076] [2022-11-19 07:38:03,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:03,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:05,067 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-19 07:38:05,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:05,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884781076] [2022-11-19 07:38:05,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884781076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:05,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:05,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:05,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733416904] [2022-11-19 07:38:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:05,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:05,109 INFO L87 Difference]: Start difference. First operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 07:38:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:08,818 INFO L93 Difference]: Finished difference Result 3000 states and 4277 transitions. [2022-11-19 07:38:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2022-11-19 07:38:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:08,868 INFO L225 Difference]: With dead ends: 3000 [2022-11-19 07:38:08,868 INFO L226 Difference]: Without dead ends: 1883 [2022-11-19 07:38:08,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:08,883 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 1104 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:08,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 2931 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 07:38:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-11-19 07:38:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1879. [2022-11-19 07:38:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1140 states have (on average 1.2675438596491229) internal successors, (1445), 1161 states have internal predecessors, (1445), 601 states have call successors, (601), 138 states have call predecessors, (601), 137 states have return successors, (600), 599 states have call predecessors, (600), 600 states have call successors, (600) [2022-11-19 07:38:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2646 transitions. [2022-11-19 07:38:09,142 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2646 transitions. Word has length 59 [2022-11-19 07:38:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:09,142 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2646 transitions. [2022-11-19 07:38:09,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 07:38:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2646 transitions. [2022-11-19 07:38:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-19 07:38:09,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:09,159 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:09,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:38:09,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:09,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1387339180, now seen corresponding path program 1 times [2022-11-19 07:38:09,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:09,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453989948] [2022-11-19 07:38:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-19 07:38:09,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:09,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453989948] [2022-11-19 07:38:09,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453989948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:09,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:09,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:09,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640506885] [2022-11-19 07:38:09,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:09,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:09,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:09,939 INFO L87 Difference]: Start difference. First operand 1879 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:38:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:13,680 INFO L93 Difference]: Finished difference Result 3384 states and 4785 transitions. [2022-11-19 07:38:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:13,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2022-11-19 07:38:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:13,704 INFO L225 Difference]: With dead ends: 3384 [2022-11-19 07:38:13,705 INFO L226 Difference]: Without dead ends: 3381 [2022-11-19 07:38:13,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:13,710 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 1122 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:13,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 2956 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:38:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-11-19 07:38:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3348. [2022-11-19 07:38:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2042 states have (on average 1.27179236043095) internal successors, (2597), 2087 states have internal predecessors, (2597), 1060 states have call successors, (1060), 250 states have call predecessors, (1060), 245 states have return successors, (1072), 1044 states have call predecessors, (1072), 1059 states have call successors, (1072) [2022-11-19 07:38:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4729 transitions. [2022-11-19 07:38:14,033 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4729 transitions. Word has length 117 [2022-11-19 07:38:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:14,036 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4729 transitions. [2022-11-19 07:38:14,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:38:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4729 transitions. [2022-11-19 07:38:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-19 07:38:14,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:14,051 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:14,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:14,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:14,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1525703175, now seen corresponding path program 1 times [2022-11-19 07:38:14,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:14,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245128681] [2022-11-19 07:38:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-19 07:38:16,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:16,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245128681] [2022-11-19 07:38:16,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245128681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:16,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104124722] [2022-11-19 07:38:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:16,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:16,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:16,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:16,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:38:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:18,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 7509 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-19 07:38:18,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:18,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-19 07:38:19,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2022-11-19 07:38:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-19 07:38:19,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:38:19,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104124722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:19,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:38:19,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-11-19 07:38:19,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990194770] [2022-11-19 07:38:19,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:19,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:38:19,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:19,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:38:19,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:38:19,242 INFO L87 Difference]: Start difference. First operand 3348 states and 4729 transitions. Second operand has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-19 07:38:26,024 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 07:38:29,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:31,527 WARN L539 Checker$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 07:38:33,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:38:35,540 WARN L539 Checker$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 07:38:52,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:52,711 INFO L93 Difference]: Finished difference Result 6825 states and 9692 transitions. [2022-11-19 07:38:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:38:52,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2022-11-19 07:38:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:52,739 INFO L225 Difference]: With dead ends: 6825 [2022-11-19 07:38:52,740 INFO L226 Difference]: Without dead ends: 3478 [2022-11-19 07:38:52,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:38:52,756 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 154 mSDsluCounter, 5153 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 338 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6410 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 717 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:52,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 6410 Invalid, 4771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 3712 Invalid, 4 Unknown, 717 Unchecked, 33.0s Time] [2022-11-19 07:38:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2022-11-19 07:38:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3406. [2022-11-19 07:38:52,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 2080 states have (on average 1.2745192307692308) internal successors, (2651), 2131 states have internal predecessors, (2651), 1066 states have call successors, (1066), 256 states have call predecessors, (1066), 259 states have return successors, (1109), 1052 states have call predecessors, (1109), 1065 states have call successors, (1109) [2022-11-19 07:38:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 4826 transitions. [2022-11-19 07:38:52,973 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 4826 transitions. Word has length 146 [2022-11-19 07:38:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:52,976 INFO L495 AbstractCegarLoop]: Abstraction has 3406 states and 4826 transitions. [2022-11-19 07:38:52,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-19 07:38:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 4826 transitions. [2022-11-19 07:38:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-19 07:38:52,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:52,987 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:53,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:38:53,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:53,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:53,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1032346180, now seen corresponding path program 1 times [2022-11-19 07:38:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:53,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507913866] [2022-11-19 07:38:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-19 07:38:55,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:55,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507913866] [2022-11-19 07:38:55,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507913866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:55,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341292219] [2022-11-19 07:38:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:55,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:55,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:55,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:55,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:38:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:57,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 7524 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:38:57,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-19 07:38:57,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:38:57,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341292219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:57,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:38:57,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-19 07:38:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322939504] [2022-11-19 07:38:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:57,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:38:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:38:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:38:57,619 INFO L87 Difference]: Start difference. First operand 3406 states and 4826 transitions. Second operand has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 07:39:00,662 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 07:39:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:06,389 INFO L93 Difference]: Finished difference Result 6789 states and 9636 transitions. [2022-11-19 07:39:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:39:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 147 [2022-11-19 07:39:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:06,409 INFO L225 Difference]: With dead ends: 6789 [2022-11-19 07:39:06,409 INFO L226 Difference]: Without dead ends: 3376 [2022-11-19 07:39:06,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:39:06,424 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 3 mSDsluCounter, 5167 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:06,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6464 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-19 07:39:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2022-11-19 07:39:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3374. [2022-11-19 07:39:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 2055 states have (on average 1.2720194647201946) internal successors, (2614), 2109 states have internal predecessors, (2614), 1060 states have call successors, (1060), 254 states have call predecessors, (1060), 258 states have return successors, (1086), 1044 states have call predecessors, (1086), 1059 states have call successors, (1086) [2022-11-19 07:39:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 4760 transitions. [2022-11-19 07:39:06,599 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 4760 transitions. Word has length 147 [2022-11-19 07:39:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:06,599 INFO L495 AbstractCegarLoop]: Abstraction has 3374 states and 4760 transitions. [2022-11-19 07:39:06,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 07:39:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 4760 transitions. [2022-11-19 07:39:06,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-19 07:39:06,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:06,606 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:06,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:06,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:06,823 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:39:06,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1354908152, now seen corresponding path program 2 times [2022-11-19 07:39:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:06,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006674393] [2022-11-19 07:39:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:39:09,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:09,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006674393] [2022-11-19 07:39:09,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006674393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:09,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104797737] [2022-11-19 07:39:09,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:39:09,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:09,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:09,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddd6d17-a8b5-4bc3-b607-affd8e186cff/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:39:11,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 07:39:11,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:39:11,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 7090 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 07:39:11,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:39:11,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:39:11,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104797737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:11,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1611971082] [2022-11-19 07:39:11,659 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-19 07:39:11,660 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:11,663 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:11,668 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:11,669 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:45:18,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:45:18,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:45:18,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-19 07:45:59,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:00,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:00,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:00,543 INFO L217 Elim1Store]: Index analysis took 1196 ms [2022-11-19 07:46:01,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1032 select indices, 1032 select index equivalence classes, 26854 disjoint index pairs (out of 531996 index pairs), introduced 1032 new quantified variables, introduced 0 case distinctions, treesize of input 7245 treesize of output 3097 [2022-11-19 07:47:32,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,023 INFO L217 Elim1Store]: Index analysis took 751 ms [2022-11-19 07:47:33,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1032 select indices, 1032 select index equivalence classes, 26854 disjoint index pairs (out of 531996 index pairs), introduced 1032 new quantified variables, introduced 0 case distinctions, treesize of input 7245 treesize of output 3097 [2022-11-19 07:47:38,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:39,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:39,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:39,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:39,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:39,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:40,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:40,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:41,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:41,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:41,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:41,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:42,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:42,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:43,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:43,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:43,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:43,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:57,545 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification that was a NOOP. DAG size: 7822 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:47:58,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:58,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:58,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:58,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:58,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:58,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:58,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:58,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:58,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:59,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:47:59,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:47:59,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:02,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:02,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:02,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:03,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:03,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:03,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:03,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:07,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:07,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:07,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:07,751 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:07,758 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:07,762 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:10,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:10,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:48:10,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:48:10,986 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:10,991 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:10,995 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:48:20,722 WARN L233 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 7813 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:48:30,516 WARN L233 SmtUtils]: Spent 9.76s on a formula simplification that was a NOOP. DAG size: 7813 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:48:39,965 WARN L233 SmtUtils]: Spent 9.38s on a formula simplification that was a NOOP. DAG size: 7921 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:48:49,870 WARN L233 SmtUtils]: Spent 9.81s on a formula simplification that was a NOOP. DAG size: 7822 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:48:59,414 WARN L233 SmtUtils]: Spent 9.34s on a formula simplification that was a NOOP. DAG size: 7824 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:49:09,062 WARN L233 SmtUtils]: Spent 9.48s on a formula simplification that was a NOOP. DAG size: 7824 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:49:18,914 WARN L233 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 7776 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-19 07:49:19,295 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-19 07:49:19,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:49:19,382 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-19 07:49:19,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2022-11-19 07:49:19,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 07:49:19,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 07:49:19,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 07:49:19,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 07:49:21,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:49:21,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:49:21,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:49:21,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 07:49:21,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:49:21,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:49:21,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:49:21,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:49:21,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:49:21,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:49:21,953 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:23,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:49:23,069 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:34,895 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 113 for LOIs [2022-11-19 07:49:35,126 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 182 for LOIs [2022-11-19 07:49:35,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:49:35,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:49:37,448 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 203 for LOIs [2022-11-19 07:49:37,503 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 210 for LOIs [2022-11-19 07:49:37,684 INFO L197 IcfgInterpreter]: Interpreting procedure bdc_gadget_ep_enable with input of size 223 for LOIs [2022-11-19 07:49:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:39,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:39,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:39,507 INFO L217 Elim1Store]: Index analysis took 131 ms [2022-11-19 07:49:39,755 INFO L321 Elim1Store]: treesize reduction 125, result has 8.8 percent of original size [2022-11-19 07:49:39,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 336 treesize of output 333 [2022-11-19 07:49:40,070 INFO L217 Elim1Store]: Index analysis took 141 ms [2022-11-19 07:49:40,536 INFO L321 Elim1Store]: treesize reduction 234, result has 8.9 percent of original size [2022-11-19 07:49:40,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 351 treesize of output 342 [2022-11-19 07:49:40,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:42,994 INFO L321 Elim1Store]: treesize reduction 644, result has 18.7 percent of original size [2022-11-19 07:49:42,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 244 [2022-11-19 07:49:43,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:43,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:43,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:43,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:43,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:43,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,730 INFO L321 Elim1Store]: treesize reduction 1101, result has 21.6 percent of original size [2022-11-19 07:49:45,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 530 [2022-11-19 07:49:45,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:45,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:46,771 INFO L321 Elim1Store]: treesize reduction 1001, result has 21.3 percent of original size [2022-11-19 07:49:46,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 24 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 883 treesize of output 774 [2022-11-19 07:50:50,401 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)