./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.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_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/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_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/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_23ac0724-6130-4da4-a5bf-8336065cc4d4/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 58516b3d45cfb092c9bf3cce0a4d4b0147a4b9ab9974b2c502c7488d898fa572 --- 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 03:51:19,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:51:19,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:51:19,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:51:19,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:51:19,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:51:19,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:51:19,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:51:19,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:51:19,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:51:19,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:51:19,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:51:19,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:51:19,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:51:19,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:51:19,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:51:19,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:51:19,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:51:19,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:51:19,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:51:19,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:51:19,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:51:19,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:51:19,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:51:19,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:51:19,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:51:19,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:51:19,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:51:19,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:51:19,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:51:19,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:51:19,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:51:19,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:51:19,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:51:19,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:51:19,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:51:19,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:51:19,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:51:19,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:51:19,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:51:19,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:51:19,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:51:19,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:51:19,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:51:19,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:51:19,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:51:19,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:51:19,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:51:19,411 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:51:19,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:51:19,411 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:51:19,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:51:19,413 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:51:19,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:51:19,413 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:51:19,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:51:19,414 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:51:19,414 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:51:19,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:51:19,415 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:51:19,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:51:19,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:51:19,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:51:19,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:51:19,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:51:19,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:51:19,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:51:19,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:51:19,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:51:19,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:51:19,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:51:19,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:51:19,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:51:19,420 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:51:19,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:51:19,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:51:19,420 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:51:19,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:51:19,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:51:19,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:51:19,421 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_23ac0724-6130-4da4-a5bf-8336065cc4d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58516b3d45cfb092c9bf3cce0a4d4b0147a4b9ab9974b2c502c7488d898fa572 [2022-11-03 03:51:19,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:51:19,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:51:19,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:51:19,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:51:19,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:51:19,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2022-11-03 03:51:19,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/data/67c93babd/fee4e823a4d441329997ce0e7bc185d2/FLAGc842cb30f [2022-11-03 03:51:20,934 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:51:20,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2022-11-03 03:51:21,015 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/data/67c93babd/fee4e823a4d441329997ce0e7bc185d2/FLAGc842cb30f [2022-11-03 03:51:21,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/data/67c93babd/fee4e823a4d441329997ce0e7bc185d2 [2022-11-03 03:51:21,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:51:21,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:51:21,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:51:21,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:51:21,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:51:21,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:21" (1/1) ... [2022-11-03 03:51:21,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:21, skipping insertion in model container [2022-11-03 03:51:21,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:21" (1/1) ... [2022-11-03 03:51:21,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:51:21,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:51:26,176 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_23ac0724-6130-4da4-a5bf-8336065cc4d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i[523232,523245] [2022-11-03 03:51:26,254 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 03:51:26,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:26,355 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:51:27,166 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_23ac0724-6130-4da4-a5bf-8336065cc4d4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i[523232,523245] [2022-11-03 03:51:27,173 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 03:51:27,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:27,476 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:51:27,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27 WrapperNode [2022-11-03 03:51:27,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:51:27,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:27,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:51:27,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:51:27,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:27,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,148 INFO L138 Inliner]: procedures = 486, calls = 6449, calls flagged for inlining = 206, calls inlined = 175, statements flattened = 12197 [2022-11-03 03:51:28,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:28,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:51:28,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:51:28,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:51:28,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:51:28,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:51:28,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:51:28,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:51:28,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (1/1) ... [2022-11-03 03:51:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:51:28,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:51:28,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:51:29,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ac0724-6130-4da4-a5bf-8336065cc4d4/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2022-11-03 03:51:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2022-11-03 03:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2022-11-03 03:51:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2022-11-03 03:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 03:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2022-11-03 03:51:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2022-11-03 03:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-03 03:51:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-03 03:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:51:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:51:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:51:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 03:51:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 03:51:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:51:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:51:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2022-11-03 03:51:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2022-11-03 03:51:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2022-11-03 03:51:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2022-11-03 03:51:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2022-11-03 03:51:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2022-11-03 03:51:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2022-11-03 03:51:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2022-11-03 03:51:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-03 03:51:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-03 03:51:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:51:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:51:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2022-11-03 03:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2022-11-03 03:51:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2022-11-03 03:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2022-11-03 03:51:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:51:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2022-11-03 03:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2022-11-03 03:51:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-11-03 03:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-11-03 03:51:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 03:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 03:51:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-03 03:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-03 03:51:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2022-11-03 03:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2022-11-03 03:51:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 03:51:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2022-11-03 03:51:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2022-11-03 03:51:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:51:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:51:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:51:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-03 03:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-03 03:51:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2022-11-03 03:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2022-11-03 03:51:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:51:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 03:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 03:51:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:51:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2022-11-03 03:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2022-11-03 03:51:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:51:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:51:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2022-11-03 03:51:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2022-11-03 03:51:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:51:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:51:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2022-11-03 03:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2022-11-03 03:51:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-11-03 03:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-11-03 03:51:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 03:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 03:51:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2022-11-03 03:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2022-11-03 03:51:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-03 03:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-03 03:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 03:51:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 03:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:51:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:51:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2022-11-03 03:51:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2022-11-03 03:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 03:51:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 03:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2022-11-03 03:51:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2022-11-03 03:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2022-11-03 03:51:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2022-11-03 03:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_15 [2022-11-03 03:51:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_15 [2022-11-03 03:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:51:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2022-11-03 03:51:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2022-11-03 03:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2022-11-03 03:51:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2022-11-03 03:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2022-11-03 03:51:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2022-11-03 03:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2022-11-03 03:51:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2022-11-03 03:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:51:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2022-11-03 03:51:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2022-11-03 03:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-03 03:51:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-03 03:51:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-03 03:51:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-03 03:51:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:51:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:51:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:51:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:51:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:51:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:51:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:51:29,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:51:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 03:51:29,084 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 03:51:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:51:29,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2022-11-03 03:51:29,085 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2022-11-03 03:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-11-03 03:51:29,085 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-11-03 03:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 03:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2022-11-03 03:51:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2022-11-03 03:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:51:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2022-11-03 03:51:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2022-11-03 03:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2022-11-03 03:51:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2022-11-03 03:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_15 [2022-11-03 03:51:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_15 [2022-11-03 03:51:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-03 03:51:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-03 03:51:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2022-11-03 03:51:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2022-11-03 03:51:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 03:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 03:51:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2022-11-03 03:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2022-11-03 03:51:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2022-11-03 03:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2022-11-03 03:51:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:51:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2022-11-03 03:51:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2022-11-03 03:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2022-11-03 03:51:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2022-11-03 03:51:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:51:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:51:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2022-11-03 03:51:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2022-11-03 03:51:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:51:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:51:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-03 03:51:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-03 03:51:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 03:51:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 03:51:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2022-11-03 03:51:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2022-11-03 03:51:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 03:51:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 03:51:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:51:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:51:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2022-11-03 03:51:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2022-11-03 03:51:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-03 03:51:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-03 03:51:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:51:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:51:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:51:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:51:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-03 03:51:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-03 03:51:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 03:51:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 03:51:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2022-11-03 03:51:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2022-11-03 03:51:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2022-11-03 03:51:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2022-11-03 03:51:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2022-11-03 03:51:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2022-11-03 03:51:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2022-11-03 03:51:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2022-11-03 03:51:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:51:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:51:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2022-11-03 03:51:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2022-11-03 03:51:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-03 03:51:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-03 03:51:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:51:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:51:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:51:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:51:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2022-11-03 03:51:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2022-11-03 03:51:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:51:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:51:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-11-03 03:51:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-11-03 03:51:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 03:51:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 03:51:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2022-11-03 03:51:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2022-11-03 03:51:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:51:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:51:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:51:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:51:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:51:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2022-11-03 03:51:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2022-11-03 03:51:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-03 03:51:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-03 03:51:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:51:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-03 03:51:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-03 03:51:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2022-11-03 03:51:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2022-11-03 03:51:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2022-11-03 03:51:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2022-11-03 03:51:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 03:51:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 03:51:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2022-11-03 03:51:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2022-11-03 03:51:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:51:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2022-11-03 03:51:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2022-11-03 03:51:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2022-11-03 03:51:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2022-11-03 03:51:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 03:51:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 03:51:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2022-11-03 03:51:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2022-11-03 03:51:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 03:51:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 03:51:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2022-11-03 03:51:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2022-11-03 03:51:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2022-11-03 03:51:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2022-11-03 03:51:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 03:51:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 03:51:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2022-11-03 03:51:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2022-11-03 03:51:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2022-11-03 03:51:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2022-11-03 03:51:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:51:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:51:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2022-11-03 03:51:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2022-11-03 03:51:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2022-11-03 03:51:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2022-11-03 03:51:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:51:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:51:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2022-11-03 03:51:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2022-11-03 03:51:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2022-11-03 03:51:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2022-11-03 03:51:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2022-11-03 03:51:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2022-11-03 03:51:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:51:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:51:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 03:51:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 03:51:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:51:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:51:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2022-11-03 03:51:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2022-11-03 03:51:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:51:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2022-11-03 03:51:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2022-11-03 03:51:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2022-11-03 03:51:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2022-11-03 03:51:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 03:51:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 03:51:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 03:51:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 03:51:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:51:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:51:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2022-11-03 03:51:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2022-11-03 03:51:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:51:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:51:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2022-11-03 03:51:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2022-11-03 03:51:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 03:51:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 03:51:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 03:51:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 03:51:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 03:51:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 03:51:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2022-11-03 03:51:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2022-11-03 03:51:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 03:51:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 03:51:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-03 03:51:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-03 03:51:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_11 [2022-11-03 03:51:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_11 [2022-11-03 03:51:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2022-11-03 03:51:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2022-11-03 03:51:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2022-11-03 03:51:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2022-11-03 03:51:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:51:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:51:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2022-11-03 03:51:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2022-11-03 03:51:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2022-11-03 03:51:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2022-11-03 03:51:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2022-11-03 03:51:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2022-11-03 03:51:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 03:51:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 03:51:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2022-11-03 03:51:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2022-11-03 03:51:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:51:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-03 03:51:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-03 03:51:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-03 03:51:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-03 03:51:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2022-11-03 03:51:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2022-11-03 03:51:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2022-11-03 03:51:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2022-11-03 03:51:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 03:51:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 03:51:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2022-11-03 03:51:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2022-11-03 03:51:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2022-11-03 03:51:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2022-11-03 03:51:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2022-11-03 03:51:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2022-11-03 03:51:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2022-11-03 03:51:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2022-11-03 03:51:30,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:51:30,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:51:31,069 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:52:23,041 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:52:26,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:52:26,228 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:52:26,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:26 BoogieIcfgContainer [2022-11-03 03:52:26,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:52:26,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:52:26,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:52:26,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:52:26,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:51:21" (1/3) ... [2022-11-03 03:52:26,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd252d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:26, skipping insertion in model container [2022-11-03 03:52:26,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:27" (2/3) ... [2022-11-03 03:52:26,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd252d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:26, skipping insertion in model container [2022-11-03 03:52:26,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:26" (3/3) ... [2022-11-03 03:52:26,252 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2022-11-03 03:52:26,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:52:26,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:52:26,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:52:26,396 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;@4bc2057e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:52:26,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:52:26,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 3272 states, 2020 states have (on average 1.3806930693069306) internal successors, (2789), 2132 states have internal predecessors, (2789), 1086 states have call successors, (1086), 165 states have call predecessors, (1086), 164 states have return successors, (1068), 1033 states have call predecessors, (1068), 1068 states have call successors, (1068) [2022-11-03 03:52:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2022-11-03 03:52:26,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:26,481 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:26,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:26,489 INFO L85 PathProgramCache]: Analyzing trace with hash 762271053, now seen corresponding path program 1 times [2022-11-03 03:52:26,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:26,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804317850] [2022-11-03 03:52:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:26,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:52:29,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:29,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804317850] [2022-11-03 03:52:29,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804317850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:29,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:29,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:29,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473678112] [2022-11-03 03:52:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:29,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:29,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:29,833 INFO L87 Difference]: Start difference. First operand has 3272 states, 2020 states have (on average 1.3806930693069306) internal successors, (2789), 2132 states have internal predecessors, (2789), 1086 states have call successors, (1086), 165 states have call predecessors, (1086), 164 states have return successors, (1068), 1033 states have call predecessors, (1068), 1068 states have call successors, (1068) Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:52:31,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:33,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:35,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:37,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:42,827 WARN L539 Checker$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 03:52:44,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:46,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:46,558 INFO L93 Difference]: Finished difference Result 9235 states and 14095 transitions. [2022-11-03 03:52:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:46,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 818 [2022-11-03 03:52:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:46,650 INFO L225 Difference]: With dead ends: 9235 [2022-11-03 03:52:46,650 INFO L226 Difference]: Without dead ends: 6059 [2022-11-03 03:52:46,692 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 03:52:46,701 INFO L413 NwaCegarLoop]: 5502 mSDtfsCounter, 4287 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 10046 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:46,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4295 Valid, 10046 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 772 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2022-11-03 03:52:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2022-11-03 03:52:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 6052. [2022-11-03 03:52:47,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6052 states, 3776 states have (on average 1.3792372881355932) internal successors, (5208), 3959 states have internal predecessors, (5208), 1959 states have call successors, (1959), 317 states have call predecessors, (1959), 316 states have return successors, (1966), 1884 states have call predecessors, (1966), 1958 states have call successors, (1966) [2022-11-03 03:52:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6052 states to 6052 states and 9133 transitions. [2022-11-03 03:52:47,174 INFO L78 Accepts]: Start accepts. Automaton has 6052 states and 9133 transitions. Word has length 818 [2022-11-03 03:52:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:47,184 INFO L495 AbstractCegarLoop]: Abstraction has 6052 states and 9133 transitions. [2022-11-03 03:52:47,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:52:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6052 states and 9133 transitions. [2022-11-03 03:52:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2022-11-03 03:52:47,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:47,223 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:47,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:52:47,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:47,225 INFO L85 PathProgramCache]: Analyzing trace with hash -952645365, now seen corresponding path program 1 times [2022-11-03 03:52:47,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:47,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634009577] [2022-11-03 03:52:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:47,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:52:49,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:49,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634009577] [2022-11-03 03:52:49,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634009577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:49,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:49,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:49,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415447522] [2022-11-03 03:52:49,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:49,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:49,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:49,217 INFO L87 Difference]: Start difference. First operand 6052 states and 9133 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-03 03:52:51,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:53,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:56,687 WARN L539 Checker$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 03:53:02,439 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 03:53:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:04,014 INFO L93 Difference]: Finished difference Result 17116 states and 25883 transitions. [2022-11-03 03:53:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 822 [2022-11-03 03:53:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:04,107 INFO L225 Difference]: With dead ends: 17116 [2022-11-03 03:53:04,108 INFO L226 Difference]: Without dead ends: 11219 [2022-11-03 03:53:04,155 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 03:53:04,156 INFO L413 NwaCegarLoop]: 5534 mSDtfsCounter, 3951 mSDsluCounter, 4833 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3957 SdHoareTripleChecker+Valid, 10010 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:04,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3957 Valid, 10010 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2022-11-03 03:53:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-11-03 03:53:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 11199. [2022-11-03 03:53:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11199 states, 7036 states have (on average 1.388288800454804) internal successors, (9768), 7390 states have internal predecessors, (9768), 3586 states have call successors, (3586), 577 states have call predecessors, (3586), 576 states have return successors, (3605), 3436 states have call predecessors, (3605), 3585 states have call successors, (3605) [2022-11-03 03:53:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11199 states to 11199 states and 16959 transitions. [2022-11-03 03:53:04,882 INFO L78 Accepts]: Start accepts. Automaton has 11199 states and 16959 transitions. Word has length 822 [2022-11-03 03:53:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:04,885 INFO L495 AbstractCegarLoop]: Abstraction has 11199 states and 16959 transitions. [2022-11-03 03:53:04,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-03 03:53:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 11199 states and 16959 transitions. [2022-11-03 03:53:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2022-11-03 03:53:04,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:04,898 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:04,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:53:04,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash 549736152, now seen corresponding path program 1 times [2022-11-03 03:53:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:04,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303514684] [2022-11-03 03:53:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:04,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:53:06,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:06,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303514684] [2022-11-03 03:53:06,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303514684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:06,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:06,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:06,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227624238] [2022-11-03 03:53:06,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:06,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:06,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:06,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:06,604 INFO L87 Difference]: Start difference. First operand 11199 states and 16959 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:53:08,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:11,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:13,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:17,654 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 03:53:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:20,512 INFO L93 Difference]: Finished difference Result 32775 states and 49641 transitions. [2022-11-03 03:53:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:20,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 823 [2022-11-03 03:53:20,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:20,671 INFO L225 Difference]: With dead ends: 32775 [2022-11-03 03:53:20,672 INFO L226 Difference]: Without dead ends: 21731 [2022-11-03 03:53:20,748 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 03:53:20,748 INFO L413 NwaCegarLoop]: 5506 mSDtfsCounter, 4208 mSDsluCounter, 4861 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 10002 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:20,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4216 Valid, 10002 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2022-11-03 03:53:20,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21731 states. [2022-11-03 03:53:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21731 to 21709. [2022-11-03 03:53:22,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21709 states, 13648 states have (on average 1.3909730363423212) internal successors, (18984), 14354 states have internal predecessors, (18984), 6928 states have call successors, (6928), 1133 states have call predecessors, (6928), 1132 states have return successors, (6975), 6624 states have call predecessors, (6975), 6927 states have call successors, (6975) [2022-11-03 03:53:22,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21709 states to 21709 states and 32887 transitions. [2022-11-03 03:53:22,310 INFO L78 Accepts]: Start accepts. Automaton has 21709 states and 32887 transitions. Word has length 823 [2022-11-03 03:53:22,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:22,311 INFO L495 AbstractCegarLoop]: Abstraction has 21709 states and 32887 transitions. [2022-11-03 03:53:22,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:53:22,312 INFO L276 IsEmpty]: Start isEmpty. Operand 21709 states and 32887 transitions. [2022-11-03 03:53:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2022-11-03 03:53:22,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:22,324 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:22,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:53:22,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:22,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:22,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1280845472, now seen corresponding path program 1 times [2022-11-03 03:53:22,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:22,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307263179] [2022-11-03 03:53:22,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:22,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:53:24,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:24,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307263179] [2022-11-03 03:53:24,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307263179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:24,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:24,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888206989] [2022-11-03 03:53:24,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:24,013 INFO L87 Difference]: Start difference. First operand 21709 states and 32887 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:53:26,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:28,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:30,931 WARN L539 Checker$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 03:53:35,069 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 03:53:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:38,167 INFO L93 Difference]: Finished difference Result 64399 states and 97551 transitions. [2022-11-03 03:53:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 826 [2022-11-03 03:53:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:38,454 INFO L225 Difference]: With dead ends: 64399 [2022-11-03 03:53:38,454 INFO L226 Difference]: Without dead ends: 42845 [2022-11-03 03:53:38,576 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 03:53:38,578 INFO L413 NwaCegarLoop]: 5605 mSDtfsCounter, 4272 mSDsluCounter, 4867 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4280 SdHoareTripleChecker+Valid, 10107 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:38,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4280 Valid, 10107 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2022-11-03 03:53:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42845 states. [2022-11-03 03:53:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42845 to 42817. [2022-11-03 03:53:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42817 states, 26932 states have (on average 1.392098618743502) internal successors, (37492), 28342 states have internal predecessors, (37492), 13632 states have call successors, (13632), 2253 states have call predecessors, (13632), 2252 states have return successors, (13735), 13020 states have call predecessors, (13735), 13631 states have call successors, (13735) [2022-11-03 03:53:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42817 states to 42817 states and 64859 transitions. [2022-11-03 03:53:41,603 INFO L78 Accepts]: Start accepts. Automaton has 42817 states and 64859 transitions. Word has length 826 [2022-11-03 03:53:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:41,605 INFO L495 AbstractCegarLoop]: Abstraction has 42817 states and 64859 transitions. [2022-11-03 03:53:41,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:53:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 42817 states and 64859 transitions. [2022-11-03 03:53:41,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2022-11-03 03:53:41,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:41,623 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:41,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:53:41,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:41,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1623899896, now seen corresponding path program 1 times [2022-11-03 03:53:41,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:41,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654023292] [2022-11-03 03:53:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:53:43,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:43,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654023292] [2022-11-03 03:53:43,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654023292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:43,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:43,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:43,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517675227] [2022-11-03 03:53:43,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:43,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:43,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:43,470 INFO L87 Difference]: Start difference. First operand 42817 states and 64859 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:53:45,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:48,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:50,346 WARN L539 Checker$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 03:53:55,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:00,690 WARN L539 Checker$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 03:54:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:01,984 INFO L93 Difference]: Finished difference Result 126983 states and 192334 transitions. [2022-11-03 03:54:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:54:01,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 824 [2022-11-03 03:54:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:02,673 INFO L225 Difference]: With dead ends: 126983 [2022-11-03 03:54:02,673 INFO L226 Difference]: Without dead ends: 84321 [2022-11-03 03:54:02,917 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 03:54:02,918 INFO L413 NwaCegarLoop]: 5630 mSDtfsCounter, 4226 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4233 SdHoareTripleChecker+Valid, 10126 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:02,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4233 Valid, 10126 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 779 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2022-11-03 03:54:02,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84321 states. [2022-11-03 03:54:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84321 to 84298. [2022-11-03 03:54:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84298 states, 52981 states have (on average 1.3924425737528547) internal successors, (73773), 55798 states have internal predecessors, (73773), 26840 states have call successors, (26840), 4477 states have call predecessors, (26840), 4476 states have return successors, (27054), 25613 states have call predecessors, (27054), 26839 states have call successors, (27054) [2022-11-03 03:54:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84298 states to 84298 states and 127667 transitions. [2022-11-03 03:54:08,992 INFO L78 Accepts]: Start accepts. Automaton has 84298 states and 127667 transitions. Word has length 824 [2022-11-03 03:54:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:08,994 INFO L495 AbstractCegarLoop]: Abstraction has 84298 states and 127667 transitions. [2022-11-03 03:54:08,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:54:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 84298 states and 127667 transitions. [2022-11-03 03:54:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2022-11-03 03:54:09,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:09,007 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:54:09,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:54:09,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:09,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1619725185, now seen corresponding path program 1 times [2022-11-03 03:54:09,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:09,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168106389] [2022-11-03 03:54:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:09,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:54:10,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:10,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168106389] [2022-11-03 03:54:10,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168106389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:10,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:10,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:54:10,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665812883] [2022-11-03 03:54:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:10,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:54:10,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:10,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:54:10,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:54:10,923 INFO L87 Difference]: Start difference. First operand 84298 states and 127667 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:54:13,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:15,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:17,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:22,648 WARN L539 Checker$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 03:54:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:30,006 INFO L93 Difference]: Finished difference Result 251166 states and 380292 transitions. [2022-11-03 03:54:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:54:30,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 828 [2022-11-03 03:54:30,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:31,339 INFO L225 Difference]: With dead ends: 251166 [2022-11-03 03:54:31,339 INFO L226 Difference]: Without dead ends: 167023 [2022-11-03 03:54:31,821 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 03:54:31,822 INFO L413 NwaCegarLoop]: 5704 mSDtfsCounter, 4242 mSDsluCounter, 4867 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4250 SdHoareTripleChecker+Valid, 10206 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:31,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4250 Valid, 10206 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-11-03 03:54:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167023 states. [2022-11-03 03:54:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167023 to 166970. [2022-11-03 03:54:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166970 states, 104917 states have (on average 1.3926151148050363) internal successors, (146109), 110550 states have internal predecessors, (146109), 53112 states have call successors, (53112), 8941 states have call predecessors, (53112), 8940 states have return successors, (53550), 50653 states have call predecessors, (53550), 53111 states have call successors, (53550) [2022-11-03 03:54:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166970 states to 166970 states and 252771 transitions. [2022-11-03 03:54:40,731 INFO L78 Accepts]: Start accepts. Automaton has 166970 states and 252771 transitions. Word has length 828 [2022-11-03 03:54:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:40,732 INFO L495 AbstractCegarLoop]: Abstraction has 166970 states and 252771 transitions. [2022-11-03 03:54:40,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-03 03:54:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 166970 states and 252771 transitions. [2022-11-03 03:54:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2022-11-03 03:54:40,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:40,744 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:54:40,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:54:40,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:40,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1280257517, now seen corresponding path program 1 times [2022-11-03 03:54:40,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:40,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850723937] [2022-11-03 03:54:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2022-11-03 03:54:42,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:42,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850723937] [2022-11-03 03:54:42,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850723937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:54:42,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:54:42,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:54:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200844444] [2022-11-03 03:54:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:42,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:54:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:54:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:54:42,629 INFO L87 Difference]: Start difference. First operand 166970 states and 252771 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-11-03 03:54:44,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:47,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:49,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:53,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []