./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7 --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 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:09:34,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:09:34,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:09:34,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:09:34,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:09:34,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:09:34,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:09:34,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:09:34,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:09:34,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:09:34,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:09:34,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:09:34,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:09:34,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:09:34,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:09:34,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:09:34,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:09:34,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:09:34,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:09:34,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:09:34,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:09:34,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:09:34,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:09:34,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:09:34,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:09:34,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:09:34,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:09:34,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:09:34,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:09:34,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:09:34,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:09:34,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:09:34,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:09:34,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:09:34,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:09:34,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:09:34,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:09:34,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:09:34,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:09:34,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:09:34,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:09:34,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:09:34,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:09:34,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:09:34,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:09:34,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:09:34,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:09:34,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:09:34,406 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:09:34,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:09:34,407 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:09:34,408 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:09:34,408 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:09:34,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:09:34,416 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:09:34,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:09:34,417 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:09:34,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:09:34,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:09:34,419 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:09:34,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:09:34,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:09:34,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:09:34,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:09:34,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:09:34,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:09:34,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:09:34,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:09:34,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:09:34,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:09:34,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:09:34,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:09:34,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:09:34,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:09:34,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:09:34,429 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:09:34,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:09:34,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:09:34,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:09:34,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:09:34,433 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c [2021-11-25 18:09:34,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:09:34,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:09:34,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:09:34,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:09:34,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:09:34,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-11-25 18:09:34,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/data/6669098b1/52714550581d4bc49ac874f0ce7c277e/FLAGc408f09ae [2021-11-25 18:09:36,039 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:09:36,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-11-25 18:09:36,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/data/6669098b1/52714550581d4bc49ac874f0ce7c277e/FLAGc408f09ae [2021-11-25 18:09:36,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/data/6669098b1/52714550581d4bc49ac874f0ce7c277e [2021-11-25 18:09:36,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:09:36,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:09:36,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:09:36,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:09:36,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:09:36,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:36" (1/1) ... [2021-11-25 18:09:36,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704b6890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:36, skipping insertion in model container [2021-11-25 18:09:36,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:36" (1/1) ... [2021-11-25 18:09:36,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:09:36,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:09:39,241 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_d6076008-e02d-4a80-98b0-9becc33bcf7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2021-11-25 18:09:39,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:39,315 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:09:39,780 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_d6076008-e02d-4a80-98b0-9becc33bcf7b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2021-11-25 18:09:39,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:39,985 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:09:39,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39 WrapperNode [2021-11-25 18:09:39,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:09:39,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:39,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:09:39,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:09:39,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,398 INFO L137 Inliner]: procedures = 287, calls = 1398, calls flagged for inlining = 167, calls inlined = 163, statements flattened = 3687 [2021-11-25 18:09:40,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:40,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:09:40,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:09:40,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:09:40,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:09:40,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:09:40,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:09:40,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:09:40,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (1/1) ... [2021-11-25 18:09:40,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:09:40,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:40,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:09:40,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:09:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:09:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:09:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:09:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:09:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:09:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:09:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:09:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:09:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-11-25 18:09:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-11-25 18:09:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:09:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:09:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-11-25 18:09:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-11-25 18:09:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 18:09:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 18:09:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-11-25 18:09:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-11-25 18:09:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 18:09:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 18:09:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-11-25 18:09:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-11-25 18:09:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 18:09:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 18:09:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-11-25 18:09:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-11-25 18:09:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:09:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:09:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:09:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:09:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:09:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:09:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-11-25 18:09:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-11-25 18:09:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-11-25 18:09:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-11-25 18:09:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:09:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:09:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-11-25 18:09:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-11-25 18:09:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-11-25 18:09:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-11-25 18:09:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:09:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:09:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-11-25 18:09:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-11-25 18:09:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 18:09:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 18:09:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 18:09:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 18:09:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:09:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:09:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:09:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:09:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-11-25 18:09:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-11-25 18:09:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:09:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:09:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 18:09:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 18:09:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-11-25 18:09:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-11-25 18:09:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 18:09:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 18:09:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-25 18:09:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-25 18:09:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:09:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-11-25 18:09:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-11-25 18:09:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:09:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:09:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-11-25 18:09:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-11-25 18:09:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:09:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:09:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:09:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-11-25 18:09:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-11-25 18:09:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-11-25 18:09:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-11-25 18:09:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:09:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:09:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:09:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-11-25 18:09:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-11-25 18:09:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-11-25 18:09:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-11-25 18:09:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:09:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:09:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-25 18:09:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-25 18:09:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:09:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:09:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-11-25 18:09:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-11-25 18:09:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-11-25 18:09:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-11-25 18:09:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:09:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-11-25 18:09:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-11-25 18:09:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-11-25 18:09:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-11-25 18:09:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:09:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:09:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-11-25 18:09:40,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-11-25 18:09:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:09:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-11-25 18:09:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-11-25 18:09:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:09:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:09:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:09:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:09:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:09:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:09:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-11-25 18:09:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-11-25 18:09:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:09:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:09:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:09:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:09:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-11-25 18:09:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-11-25 18:09:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 18:09:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 18:09:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-11-25 18:09:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-11-25 18:09:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:09:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:09:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 18:09:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 18:09:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 18:09:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 18:09:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:09:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:09:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-11-25 18:09:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-11-25 18:09:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-11-25 18:09:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-11-25 18:09:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:09:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-11-25 18:09:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-11-25 18:09:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-11-25 18:09:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-11-25 18:09:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-25 18:09:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-25 18:09:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:09:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:09:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:09:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:09:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:09:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:09:41,978 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:09:41,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:09:42,607 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:10:36,087 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:10:38,049 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:10:38,049 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:10:38,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:10:38 BoogieIcfgContainer [2021-11-25 18:10:38,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:10:38,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:10:38,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:10:38,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:10:38,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:09:36" (1/3) ... [2021-11-25 18:10:38,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77205517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:10:38, skipping insertion in model container [2021-11-25 18:10:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:39" (2/3) ... [2021-11-25 18:10:38,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77205517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:10:38, skipping insertion in model container [2021-11-25 18:10:38,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:10:38" (3/3) ... [2021-11-25 18:10:38,069 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-11-25 18:10:38,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:10:38,079 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:10:38,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:10:38,189 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:10:38,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:10:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 917 states, 528 states have (on average 1.2803030303030303) internal successors, (676), 565 states have internal predecessors, (676), 320 states have call successors, (320), 68 states have call predecessors, (320), 67 states have return successors, (313), 306 states have call predecessors, (313), 313 states have call successors, (313) [2021-11-25 18:10:38,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 18:10:38,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:10:38,255 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:10:38,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:10:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:10:38,263 INFO L85 PathProgramCache]: Analyzing trace with hash -843963419, now seen corresponding path program 1 times [2021-11-25 18:10:38,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:10:38,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716888245] [2021-11-25 18:10:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:38,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:10:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:10:39,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:10:39,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716888245] [2021-11-25 18:10:39,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716888245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:10:39,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:10:39,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:10:39,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386900725] [2021-11-25 18:10:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:10:39,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:10:39,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:10:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:10:39,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:10:39,655 INFO L87 Difference]: Start difference. First operand has 917 states, 528 states have (on average 1.2803030303030303) internal successors, (676), 565 states have internal predecessors, (676), 320 states have call successors, (320), 68 states have call predecessors, (320), 67 states have return successors, (313), 306 states have call predecessors, (313), 313 states have call successors, (313) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 18:10:41,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:10:46,857 INFO L93 Difference]: Finished difference Result 1831 states and 2637 transitions. [2021-11-25 18:10:46,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:10:46,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2021-11-25 18:10:46,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:10:46,929 INFO L225 Difference]: With dead ends: 1831 [2021-11-25 18:10:46,930 INFO L226 Difference]: Without dead ends: 1795 [2021-11-25 18:10:46,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:10:46,946 INFO L933 BasicCegarLoop]: 1570 mSDtfsCounter, 1297 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 5844 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:10:46,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1299 Valid, 5844 Invalid, 759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-25 18:10:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-25 18:10:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1792. [2021-11-25 18:10:47,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1039 states have (on average 1.2675649663137631) internal successors, (1317), 1102 states have internal predecessors, (1317), 620 states have call successors, (620), 135 states have call predecessors, (620), 132 states have return successors, (635), 599 states have call predecessors, (635), 614 states have call successors, (635) [2021-11-25 18:10:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2572 transitions. [2021-11-25 18:10:47,272 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2572 transitions. Word has length 35 [2021-11-25 18:10:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:10:47,273 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2572 transitions. [2021-11-25 18:10:47,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 18:10:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2572 transitions. [2021-11-25 18:10:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 18:10:47,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:10:47,278 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:10:47,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:10:47,279 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:10:47,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:10:47,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1466331685, now seen corresponding path program 1 times [2021-11-25 18:10:47,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:10:47,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908022313] [2021-11-25 18:10:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:47,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:10:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:10:48,224 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:10:48,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908022313] [2021-11-25 18:10:48,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908022313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:10:48,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:10:48,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:10:48,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640897756] [2021-11-25 18:10:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:10:48,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:10:48,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:10:48,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:10:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:10:48,230 INFO L87 Difference]: Start difference. First operand 1792 states and 2572 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:10:50,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:10:53,877 INFO L93 Difference]: Finished difference Result 1798 states and 2577 transitions. [2021-11-25 18:10:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:10:53,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2021-11-25 18:10:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:10:53,912 INFO L225 Difference]: With dead ends: 1798 [2021-11-25 18:10:53,913 INFO L226 Difference]: Without dead ends: 1776 [2021-11-25 18:10:53,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:10:53,921 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 1276 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:10:53,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 3348 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 18:10:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2021-11-25 18:10:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1776. [2021-11-25 18:10:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1031 states have (on average 1.2657613967022308) internal successors, (1305), 1092 states have internal predecessors, (1305), 614 states have call successors, (614), 132 states have call predecessors, (614), 130 states have return successors, (632), 596 states have call predecessors, (632), 611 states have call successors, (632) [2021-11-25 18:10:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2551 transitions. [2021-11-25 18:10:54,094 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2551 transitions. Word has length 40 [2021-11-25 18:10:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:10:54,095 INFO L470 AbstractCegarLoop]: Abstraction has 1776 states and 2551 transitions. [2021-11-25 18:10:54,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:10:54,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2551 transitions. [2021-11-25 18:10:54,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-25 18:10:54,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:10:54,131 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:10:54,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:10:54,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:10:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:10:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1835691265, now seen corresponding path program 1 times [2021-11-25 18:10:54,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:10:54,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631714738] [2021-11-25 18:10:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:54,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:10:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2021-11-25 18:10:55,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:10:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631714738] [2021-11-25 18:10:55,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631714738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:10:55,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:10:55,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 18:10:55,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717773746] [2021-11-25 18:10:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:10:55,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 18:10:55,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:10:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 18:10:55,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:10:55,583 INFO L87 Difference]: Start difference. First operand 1776 states and 2551 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-25 18:10:57,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:03,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:12,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:15,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:17,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:11:26,806 INFO L93 Difference]: Finished difference Result 2786 states and 4086 transitions. [2021-11-25 18:11:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:11:26,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 200 [2021-11-25 18:11:26,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:11:26,842 INFO L225 Difference]: With dead ends: 2786 [2021-11-25 18:11:26,842 INFO L226 Difference]: Without dead ends: 2776 [2021-11-25 18:11:26,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:11:26,847 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 3774 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 4022 mSolverCounterSat, 3517 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 7543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3517 IncrementalHoareTripleChecker+Valid, 4022 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:11:26,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4075 Valid, 3040 Invalid, 7543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3517 Valid, 4022 Invalid, 4 Unknown, 0 Unchecked, 30.6s Time] [2021-11-25 18:11:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2021-11-25 18:11:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2770. [2021-11-25 18:11:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 1616 states have (on average 1.2679455445544554) internal successors, (2049), 1711 states have internal predecessors, (2049), 955 states have call successors, (955), 197 states have call predecessors, (955), 198 states have return successors, (1040), 930 states have call predecessors, (1040), 952 states have call successors, (1040) [2021-11-25 18:11:27,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 4044 transitions. [2021-11-25 18:11:27,050 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 4044 transitions. Word has length 200 [2021-11-25 18:11:27,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:11:27,052 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 4044 transitions. [2021-11-25 18:11:27,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-25 18:11:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 4044 transitions. [2021-11-25 18:11:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-25 18:11:27,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:11:27,065 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:11:27,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:11:27,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:11:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:11:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1746981023, now seen corresponding path program 1 times [2021-11-25 18:11:27,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:11:27,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487380824] [2021-11-25 18:11:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:11:27,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:11:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:11:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-11-25 18:11:28,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:11:28,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487380824] [2021-11-25 18:11:28,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487380824] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:11:28,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289349143] [2021-11-25 18:11:28,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:11:28,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:11:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:11:28,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:11:28,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:11:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:11:29,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 4051 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:11:29,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:11:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-25 18:11:31,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:11:31,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289349143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:11:31,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:11:31,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2021-11-25 18:11:31,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575508935] [2021-11-25 18:11:31,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:11:31,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:11:31,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:11:31,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:11:31,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:11:31,588 INFO L87 Difference]: Start difference. First operand 2770 states and 4044 transitions. Second operand has 9 states, 6 states have (on average 16.333333333333332) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2021-11-25 18:11:33,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:11:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:11:41,061 INFO L93 Difference]: Finished difference Result 5341 states and 7762 transitions. [2021-11-25 18:11:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:11:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 16.333333333333332) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) Word has length 275 [2021-11-25 18:11:41,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:11:41,098 INFO L225 Difference]: With dead ends: 5341 [2021-11-25 18:11:41,099 INFO L226 Difference]: Without dead ends: 2803 [2021-11-25 18:11:41,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-25 18:11:41,123 INFO L933 BasicCegarLoop]: 1092 mSDtfsCounter, 7 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8666 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:11:41,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 8666 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1640 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 18:11:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-11-25 18:11:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2794. [2021-11-25 18:11:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 1631 states have (on average 1.2660944206008584) internal successors, (2065), 1723 states have internal predecessors, (2065), 964 states have call successors, (964), 197 states have call predecessors, (964), 198 states have return successors, (1049), 939 states have call predecessors, (1049), 961 states have call successors, (1049) [2021-11-25 18:11:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 4078 transitions. [2021-11-25 18:11:41,376 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 4078 transitions. Word has length 275 [2021-11-25 18:11:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:11:41,382 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 4078 transitions. [2021-11-25 18:11:41,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 16.333333333333332) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2021-11-25 18:11:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 4078 transitions. [2021-11-25 18:11:41,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-25 18:11:41,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:11:41,401 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:11:41,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:11:41,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:11:41,625 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:11:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:11:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash 202365929, now seen corresponding path program 1 times [2021-11-25 18:11:41,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:11:41,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379173082] [2021-11-25 18:11:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:11:41,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:11:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:11:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2021-11-25 18:11:42,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:11:42,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379173082] [2021-11-25 18:11:42,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379173082] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:11:42,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30894307] [2021-11-25 18:11:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:11:42,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:11:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:11:42,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:11:42,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:11:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:11:44,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 4332 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 18:11:44,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:11:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-25 18:11:47,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:11:47,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30894307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:11:47,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:11:47,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2021-11-25 18:11:47,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234778] [2021-11-25 18:11:47,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:11:47,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 18:11:47,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:11:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 18:11:47,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-11-25 18:11:47,057 INFO L87 Difference]: Start difference. First operand 2794 states and 4078 transitions. Second operand has 16 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (51), 8 states have call predecessors, (51), 5 states have call successors, (51) [2021-11-25 18:11:49,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:12:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:12:03,307 INFO L93 Difference]: Finished difference Result 5437 states and 7953 transitions. [2021-11-25 18:12:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 18:12:03,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (51), 8 states have call predecessors, (51), 5 states have call successors, (51) Word has length 307 [2021-11-25 18:12:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:12:03,338 INFO L225 Difference]: With dead ends: 5437 [2021-11-25 18:12:03,339 INFO L226 Difference]: Without dead ends: 2875 [2021-11-25 18:12:03,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-11-25 18:12:03,360 INFO L933 BasicCegarLoop]: 1131 mSDtfsCounter, 14 mSDsluCounter, 18083 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16858 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:12:03,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 16858 Invalid, 3199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3196 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2021-11-25 18:12:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-11-25 18:12:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2857. [2021-11-25 18:12:03,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 1667 states have (on average 1.2627474505098981) internal successors, (2105), 1759 states have internal predecessors, (2105), 985 states have call successors, (985), 197 states have call predecessors, (985), 204 states have return successors, (1133), 966 states have call predecessors, (1133), 982 states have call successors, (1133) [2021-11-25 18:12:03,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4223 transitions. [2021-11-25 18:12:03,579 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4223 transitions. Word has length 307 [2021-11-25 18:12:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:12:03,580 INFO L470 AbstractCegarLoop]: Abstraction has 2857 states and 4223 transitions. [2021-11-25 18:12:03,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 5 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (51), 8 states have call predecessors, (51), 5 states have call successors, (51) [2021-11-25 18:12:03,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4223 transitions. [2021-11-25 18:12:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-25 18:12:03,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:12:03,597 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:12:03,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:12:03,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:12:03,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:12:03,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:12:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 938880974, now seen corresponding path program 1 times [2021-11-25 18:12:03,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:12:03,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293042490] [2021-11-25 18:12:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:12:03,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:12:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:12:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-25 18:12:04,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:12:04,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293042490] [2021-11-25 18:12:04,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293042490] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:12:04,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238530725] [2021-11-25 18:12:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:12:04,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:12:04,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:12:04,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:12:04,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6076008-e02d-4a80-98b0-9becc33bcf7b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:12:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:12:07,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 4352 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-25 18:12:07,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:12:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-11-25 18:12:09,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:12:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-25 18:12:11,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238530725] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:12:11,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1381838403] [2021-11-25 18:12:11,435 INFO L159 IcfgInterpreter]: Started Sifa with 149 locations of interest [2021-11-25 18:12:11,435 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:12:11,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:12:11,449 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:12:11,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:12:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:12:16,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 1212 treesize of output 1170 [2021-11-25 18:18:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:01,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:01,748 INFO L244 Elim1Store]: Index analysis took 529 ms [2021-11-25 18:18:01,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1377 treesize of output 1263 [2021-11-25 18:18:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:03,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:03,790 INFO L244 Elim1Store]: Index analysis took 455 ms [2021-11-25 18:18:03,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1395 treesize of output 1278 [2021-11-25 18:18:05,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:05,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:05,895 INFO L244 Elim1Store]: Index analysis took 454 ms [2021-11-25 18:18:05,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:07,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:08,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:08,069 INFO L244 Elim1Store]: Index analysis took 575 ms [2021-11-25 18:18:08,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:10,010 INFO L244 Elim1Store]: Index analysis took 487 ms [2021-11-25 18:18:10,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:12,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:12,031 INFO L244 Elim1Store]: Index analysis took 485 ms [2021-11-25 18:18:12,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:14,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:14,045 INFO L244 Elim1Store]: Index analysis took 503 ms [2021-11-25 18:18:14,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:16,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:16,152 INFO L244 Elim1Store]: Index analysis took 577 ms [2021-11-25 18:18:16,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:18,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:18,193 INFO L244 Elim1Store]: Index analysis took 479 ms [2021-11-25 18:18:18,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:19,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:19,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:19,955 INFO L244 Elim1Store]: Index analysis took 370 ms [2021-11-25 18:18:19,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:21,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:21,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:21,682 INFO L244 Elim1Store]: Index analysis took 345 ms [2021-11-25 18:18:21,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:23,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:23,295 INFO L244 Elim1Store]: Index analysis took 294 ms [2021-11-25 18:18:23,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:24,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:24,887 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-11-25 18:18:24,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:26,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:26,558 INFO L244 Elim1Store]: Index analysis took 260 ms [2021-11-25 18:18:26,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:28,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:28,324 INFO L244 Elim1Store]: Index analysis took 285 ms [2021-11-25 18:18:28,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:29,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:29,999 INFO L244 Elim1Store]: Index analysis took 272 ms [2021-11-25 18:18:30,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:31,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:31,446 INFO L244 Elim1Store]: Index analysis took 245 ms [2021-11-25 18:18:31,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:32,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:32,832 INFO L244 Elim1Store]: Index analysis took 184 ms [2021-11-25 18:18:32,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1399 treesize of output 1282 [2021-11-25 18:18:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:56,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:57,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:57,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:58,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:58,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:18:59,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:01,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:02,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:03,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:05,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:06,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:08,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:09,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:11,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:13,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:15,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:17,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:18,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:19,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:22,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:23,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:25,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:27,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:28,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:28,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:29,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:31,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:31,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:32,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:34,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:35,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:36,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:37,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:38,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:39,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:40,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:42,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:44,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:45,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:47,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:47,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:48,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:49,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:50,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:51,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:52,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:52,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:54,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:55,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:58,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:58,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:59,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:59,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:00,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:01,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:01,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:02,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:03,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:04,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:04,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:05,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:06,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:07,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:07,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:09,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:10,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:10,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:11,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:12,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:12,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:13,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:14,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:15,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:16,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:16,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:17,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:17,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:18,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:19,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:20,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:20,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,045 INFO L244 Elim1Store]: Index analysis took 86091 ms [2021-11-25 18:20:37,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 152