./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-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI --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 d9097294034e60f68c5e476784c89e8f8da996f2e52e4b71dc31d0ac6cb0fc49 --- 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-5e519f3 [2022-11-03 02:15:56,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:15:56,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:15:56,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:15:56,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:15:56,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:15:56,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:15:56,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:15:56,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:15:56,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:15:56,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:15:56,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:15:56,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:15:56,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:15:56,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:15:56,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:15:56,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:15:56,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:15:56,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:15:56,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:15:56,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:15:56,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:15:56,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:15:56,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:15:56,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:15:56,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:15:56,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:15:56,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:15:56,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:15:56,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:15:56,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:15:56,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:15:56,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:15:56,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:15:56,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:15:56,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:15:56,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:15:56,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:15:56,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:15:56,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:15:56,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:15:56,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:15:56,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:15:56,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:15:56,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:15:56,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:15:56,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:15:56,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:15:56,140 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:15:56,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:15:56,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:15:56,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:15:56,140 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:15:56,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:15:56,141 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:15:56,141 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:15:56,141 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:15:56,141 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:15:56,141 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:15:56,142 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:15:56,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:15:56,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:15:56,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:15:56,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:15:56,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:15:56,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:15:56,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:15:56,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:15:56,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:15:56,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:15:56,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:15:56,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:15:56,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:15:56,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:15:56,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:15:56,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:15:56,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:15:56,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:15:56,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:15:56,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:15:56,146 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_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9097294034e60f68c5e476784c89e8f8da996f2e52e4b71dc31d0ac6cb0fc49 [2022-11-03 02:15:56,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:15:56,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:15:56,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:15:56,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:15:56,475 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:15:56,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-03 02:15:56,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/data/85f50bee7/8f15735b28404ae490f3202f0f97a321/FLAG7b40838e2 [2022-11-03 02:15:57,534 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:15:57,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-03 02:15:57,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/data/85f50bee7/8f15735b28404ae490f3202f0f97a321/FLAG7b40838e2 [2022-11-03 02:15:57,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/data/85f50bee7/8f15735b28404ae490f3202f0f97a321 [2022-11-03 02:15:57,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:15:57,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:15:57,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:15:57,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:15:57,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:15:57,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:15:57" (1/1) ... [2022-11-03 02:15:57,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c297b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:57, skipping insertion in model container [2022-11-03 02:15:57,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:15:57" (1/1) ... [2022-11-03 02:15:57,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:15:58,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:16:00,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i[345917,345930] [2022-11-03 02:16:00,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:16:00,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:16:01,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i[345917,345930] [2022-11-03 02:16:01,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:16:01,700 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:16:01,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01 WrapperNode [2022-11-03 02:16:01,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:16:01,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:16:01,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:16:01,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:16:01,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:01,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,201 INFO L138 Inliner]: procedures = 337, calls = 3997, calls flagged for inlining = 168, calls inlined = 162, statements flattened = 11137 [2022-11-03 02:16:02,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:16:02,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:16:02,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:16:02,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:16:02,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,696 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:16:02,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:16:02,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:16:02,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:16:02,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (1/1) ... [2022-11-03 02:16:02,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:16:02,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:16:02,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:16:02,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc1bdaf-afcf-4c11-b5d6-ede62aa3a9ef/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:16:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_type [2022-11-03 02:16:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_type [2022-11-03 02:16:02,940 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-03 02:16:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-03 02:16:02,940 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-03 02:16:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-03 02:16:02,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:16:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:16:02,941 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_probe [2022-11-03 02:16:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_probe [2022-11-03 02:16:02,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:16:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:16:02,942 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-03 02:16:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-03 02:16:02,942 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2022-11-03 02:16:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2022-11-03 02:16:02,942 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_update_device [2022-11-03 02:16:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_update_device [2022-11-03 02:16:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:16:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:16:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2022-11-03 02:16:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2022-11-03 02:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2022-11-03 02:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2022-11-03 02:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_remove [2022-11-03 02:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_remove [2022-11-03 02:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-03 02:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-03 02:16:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2022-11-03 02:16:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2022-11-03 02:16:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2022-11-03 02:16:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2022-11-03 02:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83627hf_data [2022-11-03 02:16:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83627hf_data [2022-11-03 02:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:16:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:16:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:16:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:16:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-11-03 02:16:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-11-03 02:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-03 02:16:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-03 02:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm_freq [2022-11-03 02:16:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm_freq [2022-11-03 02:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:16:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:16:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-11-03 02:16:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-11-03 02:16:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-11-03 02:16:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-11-03 02:16:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_resume [2022-11-03 02:16:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_resume [2022-11-03 02:16:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:16:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:16:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_freq [2022-11-03 02:16:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_freq [2022-11-03 02:16:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_suspend [2022-11-03 02:16:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_suspend [2022-11-03 02:16:02,953 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_reset_bank [2022-11-03 02:16:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_reset_bank [2022-11-03 02:16:02,953 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-03 02:16:02,954 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-03 02:16:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:16:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-11-03 02:16:02,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-11-03 02:16:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2022-11-03 02:16:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2022-11-03 02:16:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-03 02:16:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-03 02:16:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83627hf_data [2022-11-03 02:16:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83627hf_data [2022-11-03 02:16:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_find [2022-11-03 02:16:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_find [2022-11-03 02:16:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:16:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:16:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:16:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2022-11-03 02:16:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2022-11-03 02:16:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-03 02:16:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-03 02:16:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:16:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:16:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_input [2022-11-03 02:16:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_input [2022-11-03 02:16:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:16:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:16:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-11-03 02:16:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-11-03 02:16:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_enable [2022-11-03 02:16:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_enable [2022-11-03 02:16:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_type [2022-11-03 02:16:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_type [2022-11-03 02:16:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:16:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:16:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm_enable [2022-11-03 02:16:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm_enable [2022-11-03 02:16:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 02:16:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 02:16:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2022-11-03 02:16:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2022-11-03 02:16:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_0 [2022-11-03 02:16:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_0 [2022-11-03 02:16:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83627hf_data [2022-11-03 02:16:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83627hf_data [2022-11-03 02:16:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:16:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 02:16:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 02:16:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_input [2022-11-03 02:16:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_input [2022-11-03 02:16:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2022-11-03 02:16:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2022-11-03 02:16:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_update_fan_div [2022-11-03 02:16:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_update_fan_div [2022-11-03 02:16:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83627hf_data [2022-11-03 02:16:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83627hf_data [2022-11-03 02:16:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-03 02:16:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-03 02:16:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-03 02:16:02,974 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-03 02:16:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:16:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-03 02:16:02,981 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-03 02:16:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:16:02,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:16:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2022-11-03 02:16:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2022-11-03 02:16:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_write_value [2022-11-03 02:16:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_write_value [2022-11-03 02:16:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2022-11-03 02:16:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2022-11-03 02:16:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:16:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:16:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:16:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-03 02:16:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-03 02:16:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_set_bank [2022-11-03 02:16:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_set_bank [2022-11-03 02:16:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-03 02:16:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-03 02:16:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:16:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:16:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:16:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2022-11-03 02:16:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2022-11-03 02:16:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:16:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-03 02:16:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-03 02:16:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2022-11-03 02:16:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2022-11-03 02:16:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-03 02:16:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-03 02:16:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-03 02:16:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-03 02:16:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-03 02:16:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-03 02:16:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure w83627hf_read_value [2022-11-03 02:16:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure w83627hf_read_value [2022-11-03 02:16:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:16:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:16:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_FROM_REG [2022-11-03 02:16:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_FROM_REG [2022-11-03 02:16:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:16:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:16:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:16:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:16:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:16:04,153 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:16:04,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:16:04,615 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:16:19,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:16:21,496 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:16:21,497 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:16:21,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:21 BoogieIcfgContainer [2022-11-03 02:16:21,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:16:21,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:16:21,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:16:21,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:16:21,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:15:57" (1/3) ... [2022-11-03 02:16:21,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b70f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:21, skipping insertion in model container [2022-11-03 02:16:21,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:01" (2/3) ... [2022-11-03 02:16:21,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b70f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:21, skipping insertion in model container [2022-11-03 02:16:21,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:21" (3/3) ... [2022-11-03 02:16:21,515 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--w83627hf.ko-entry_point.cil.out.i [2022-11-03 02:16:21,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:16:21,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:16:21,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:16:21,684 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;@533a867e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:16:21,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:16:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 2935 states, 1851 states have (on average 1.4149108589951378) internal successors, (2619), 1958 states have internal predecessors, (2619), 1006 states have call successors, (1006), 77 states have call predecessors, (1006), 76 states have return successors, (909), 909 states have call predecessors, (909), 909 states have call successors, (909) [2022-11-03 02:16:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2947 [2022-11-03 02:16:21,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:21,983 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:21,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1126034659, now seen corresponding path program 1 times [2022-11-03 02:16:22,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:22,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73043769] [2022-11-03 02:16:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:16:33,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:33,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73043769] [2022-11-03 02:16:33,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73043769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:33,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:33,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726969365] [2022-11-03 02:16:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:33,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:33,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:33,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:33,690 INFO L87 Difference]: Start difference. First operand has 2935 states, 1851 states have (on average 1.4149108589951378) internal successors, (2619), 1958 states have internal predecessors, (2619), 1006 states have call successors, (1006), 77 states have call predecessors, (1006), 76 states have return successors, (909), 909 states have call predecessors, (909), 909 states have call successors, (909) Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:16:35,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:38,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:40,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:42,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:43,997 INFO L93 Difference]: Finished difference Result 7637 states and 12429 transitions. [2022-11-03 02:16:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:44,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2946 [2022-11-03 02:16:44,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:44,088 INFO L225 Difference]: With dead ends: 7637 [2022-11-03 02:16:44,088 INFO L226 Difference]: Without dead ends: 5066 [2022-11-03 02:16:44,128 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 [2022-11-03 02:16:44,132 INFO L413 NwaCegarLoop]: 4931 mSDtfsCounter, 3611 mSDsluCounter, 4510 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3611 SdHoareTripleChecker+Valid, 9229 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:44,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3611 Valid, 9229 Invalid, 444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 4 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 02:16:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2022-11-03 02:16:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 5045. [2022-11-03 02:16:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 3383 states have (on average 1.3922553946201597) internal successors, (4710), 3395 states have internal predecessors, (4710), 1512 states have call successors, (1512), 150 states have call predecessors, (1512), 149 states have return successors, (1503), 1499 states have call predecessors, (1503), 1503 states have call successors, (1503) [2022-11-03 02:16:44,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 7725 transitions. [2022-11-03 02:16:44,894 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 7725 transitions. Word has length 2946 [2022-11-03 02:16:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:44,903 INFO L495 AbstractCegarLoop]: Abstraction has 5045 states and 7725 transitions. [2022-11-03 02:16:44,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (285), 2 states have call predecessors, (285), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:16:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 7725 transitions. [2022-11-03 02:16:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2950 [2022-11-03 02:16:45,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:45,264 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:45,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:16:45,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:45,266 INFO L85 PathProgramCache]: Analyzing trace with hash -345832035, now seen corresponding path program 1 times [2022-11-03 02:16:45,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:45,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105237689] [2022-11-03 02:16:45,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:45,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:16:54,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:54,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105237689] [2022-11-03 02:16:54,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105237689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:54,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:54,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:54,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219192084] [2022-11-03 02:16:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:54,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:54,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:54,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:54,011 INFO L87 Difference]: Start difference. First operand 5045 states and 7725 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:16:56,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:58,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:00,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:02,345 INFO L93 Difference]: Finished difference Result 13970 states and 21428 transitions. [2022-11-03 02:17:02,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:02,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2949 [2022-11-03 02:17:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:02,426 INFO L225 Difference]: With dead ends: 13970 [2022-11-03 02:17:02,427 INFO L226 Difference]: Without dead ends: 9487 [2022-11-03 02:17:02,465 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 [2022-11-03 02:17:02,466 INFO L413 NwaCegarLoop]: 4747 mSDtfsCounter, 3435 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 8848 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:02,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3435 Valid, 8848 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 443 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-11-03 02:17:02,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-11-03 02:17:03,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9465. [2022-11-03 02:17:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9465 states, 6447 states have (on average 1.4093376764386536) internal successors, (9086), 6467 states have internal predecessors, (9086), 2720 states have call successors, (2720), 298 states have call predecessors, (2720), 297 states have return successors, (2711), 2699 states have call predecessors, (2711), 2711 states have call successors, (2711) [2022-11-03 02:17:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9465 states to 9465 states and 14517 transitions. [2022-11-03 02:17:03,284 INFO L78 Accepts]: Start accepts. Automaton has 9465 states and 14517 transitions. Word has length 2949 [2022-11-03 02:17:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:03,289 INFO L495 AbstractCegarLoop]: Abstraction has 9465 states and 14517 transitions. [2022-11-03 02:17:03,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:03,291 INFO L276 IsEmpty]: Start isEmpty. Operand 9465 states and 14517 transitions. [2022-11-03 02:17:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2950 [2022-11-03 02:17:03,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:03,361 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:03,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:17:03,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash -622476632, now seen corresponding path program 1 times [2022-11-03 02:17:03,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:03,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154384784] [2022-11-03 02:17:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:17:09,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:09,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154384784] [2022-11-03 02:17:09,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154384784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:09,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:09,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:09,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989944877] [2022-11-03 02:17:09,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:09,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:09,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:09,592 INFO L87 Difference]: Start difference. First operand 9465 states and 14517 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:11,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:15,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:16,157 INFO L93 Difference]: Finished difference Result 27236 states and 41816 transitions. [2022-11-03 02:17:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:16,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2949 [2022-11-03 02:17:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:16,296 INFO L225 Difference]: With dead ends: 27236 [2022-11-03 02:17:16,296 INFO L226 Difference]: Without dead ends: 18333 [2022-11-03 02:17:16,367 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 [2022-11-03 02:17:16,369 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 3459 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 8833 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:16,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 8833 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 02:17:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18333 states. [2022-11-03 02:17:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18333 to 18313. [2022-11-03 02:17:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18313 states, 12577 states have (on average 1.4183032519678778) internal successors, (17838), 12611 states have internal predecessors, (17838), 5142 states have call successors, (5142), 594 states have call predecessors, (5142), 593 states have return successors, (5133), 5107 states have call predecessors, (5133), 5133 states have call successors, (5133) [2022-11-03 02:17:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18313 states to 18313 states and 28113 transitions. [2022-11-03 02:17:17,701 INFO L78 Accepts]: Start accepts. Automaton has 18313 states and 28113 transitions. Word has length 2949 [2022-11-03 02:17:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:17,705 INFO L495 AbstractCegarLoop]: Abstraction has 18313 states and 28113 transitions. [2022-11-03 02:17:17,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 18313 states and 28113 transitions. [2022-11-03 02:17:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2954 [2022-11-03 02:17:17,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:17,887 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:17,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:17:17,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:17,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash -558882826, now seen corresponding path program 1 times [2022-11-03 02:17:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:17,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302332512] [2022-11-03 02:17:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:17:23,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:23,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302332512] [2022-11-03 02:17:23,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302332512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:23,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:23,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:23,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080885881] [2022-11-03 02:17:23,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:23,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:23,419 INFO L87 Difference]: Start difference. First operand 18313 states and 28113 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:25,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:28,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:30,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:32,439 INFO L93 Difference]: Finished difference Result 53614 states and 82342 transitions. [2022-11-03 02:17:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2953 [2022-11-03 02:17:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:32,784 INFO L225 Difference]: With dead ends: 53614 [2022-11-03 02:17:32,784 INFO L226 Difference]: Without dead ends: 35863 [2022-11-03 02:17:32,880 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 [2022-11-03 02:17:32,881 INFO L413 NwaCegarLoop]: 4787 mSDtfsCounter, 3413 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:32,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 8888 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 02:17:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35863 states. [2022-11-03 02:17:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35863 to 35833. [2022-11-03 02:17:35,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35833 states, 24733 states have (on average 1.423604091699349) internal successors, (35210), 24799 states have internal predecessors, (35210), 9914 states have call successors, (9914), 1186 states have call predecessors, (9914), 1185 states have return successors, (9905), 9847 states have call predecessors, (9905), 9905 states have call successors, (9905) [2022-11-03 02:17:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35833 states to 35833 states and 55029 transitions. [2022-11-03 02:17:35,252 INFO L78 Accepts]: Start accepts. Automaton has 35833 states and 55029 transitions. Word has length 2953 [2022-11-03 02:17:35,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:35,255 INFO L495 AbstractCegarLoop]: Abstraction has 35833 states and 55029 transitions. [2022-11-03 02:17:35,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 35833 states and 55029 transitions. [2022-11-03 02:17:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2953 [2022-11-03 02:17:35,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:35,509 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:35,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:17:35,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 975836522, now seen corresponding path program 1 times [2022-11-03 02:17:35,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:35,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242341076] [2022-11-03 02:17:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:35,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:17:40,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:40,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242341076] [2022-11-03 02:17:40,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242341076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:40,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:40,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:40,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610006596] [2022-11-03 02:17:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:40,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:40,540 INFO L87 Difference]: Start difference. First operand 35833 states and 55029 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:42,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:45,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:47,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:50,245 INFO L93 Difference]: Finished difference Result 106126 states and 163010 transitions. [2022-11-03 02:17:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:50,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2952 [2022-11-03 02:17:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:50,785 INFO L225 Difference]: With dead ends: 106126 [2022-11-03 02:17:50,785 INFO L226 Difference]: Without dead ends: 70855 [2022-11-03 02:17:51,005 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 [2022-11-03 02:17:51,006 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 3420 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 8902 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:51,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 8902 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 444 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-11-03 02:17:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70855 states. [2022-11-03 02:17:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70855 to 70825. [2022-11-03 02:17:54,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70825 states, 48997 states have (on average 1.4259240361654795) internal successors, (69866), 49127 states have internal predecessors, (69866), 19458 states have call successors, (19458), 2370 states have call predecessors, (19458), 2369 states have return successors, (19449), 19327 states have call predecessors, (19449), 19449 states have call successors, (19449) [2022-11-03 02:17:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70825 states to 70825 states and 108773 transitions. [2022-11-03 02:17:55,735 INFO L78 Accepts]: Start accepts. Automaton has 70825 states and 108773 transitions. Word has length 2952 [2022-11-03 02:17:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:55,738 INFO L495 AbstractCegarLoop]: Abstraction has 70825 states and 108773 transitions. [2022-11-03 02:17:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:17:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 70825 states and 108773 transitions. [2022-11-03 02:17:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2952 [2022-11-03 02:17:55,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:55,833 INFO L195 NwaCegarLoop]: trace histogram [219, 219, 219, 219, 219, 219, 219, 219, 219, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:55,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:17:55,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1281664077, now seen corresponding path program 1 times [2022-11-03 02:17:55,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:55,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735712058] [2022-11-03 02:17:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:55,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 244020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244020 trivial. 0 not checked. [2022-11-03 02:18:01,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:01,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735712058] [2022-11-03 02:18:01,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735712058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:01,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:01,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005334864] [2022-11-03 02:18:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:01,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:01,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:01,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:01,681 INFO L87 Difference]: Start difference. First operand 70825 states and 108773 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) [2022-11-03 02:18:03,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:06,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:08,435 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 [] [2022-11-03 02:18:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:13,579 INFO L93 Difference]: Finished difference Result 210974 states and 324034 transitions. [2022-11-03 02:18:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:13,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 2 states have call successors, (286), 2 states have call predecessors, (286), 1 states have return successors, (282), 2 states have call predecessors, (282), 2 states have call successors, (282) Word has length 2951 [2022-11-03 02:18:13,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:14,434 INFO L225 Difference]: With dead ends: 210974 [2022-11-03 02:18:14,435 INFO L226 Difference]: Without dead ends: 140711 [2022-11-03 02:18:14,755 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 [2022-11-03 02:18:14,756 INFO L413 NwaCegarLoop]: 4803 mSDtfsCounter, 3427 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 8904 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:14,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3427 Valid, 8904 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 440 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 02:18:14,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140711 states.