./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW --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 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:47:52,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:47:52,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:47:52,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:47:52,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:47:52,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:47:52,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:47:52,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:47:52,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:47:52,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:47:52,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:47:52,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:47:52,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:47:52,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:47:52,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:47:52,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:47:52,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:47:52,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:47:52,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:47:52,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:47:52,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:47:52,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:47:52,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:47:52,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:47:52,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:47:52,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:47:52,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:47:52,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:47:52,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:47:52,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:47:52,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:47:52,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:47:52,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:47:52,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:47:52,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:47:52,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:47:52,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:47:52,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:47:52,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:47:52,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:47:52,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:47:52,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:47:52,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:47:52,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:47:52,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:47:52,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:47:52,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:47:52,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:47:52,425 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:47:52,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:47:52,425 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:47:52,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:47:52,426 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:47:52,427 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:47:52,427 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:47:52,427 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:47:52,427 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:47:52,427 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:47:52,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:47:52,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:47:52,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:47:52,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:47:52,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:47:52,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:47:52,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:47:52,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:47:52,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:47:52,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:47:52,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:47:52,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:47:52,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:47:52,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:47:52,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:47:52,431 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:47:52,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:47:52,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:47:52,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:47:52,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:47:52,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:47:52,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:47:52,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd [2022-11-23 13:47:52,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:47:52,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:47:52,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:47:52,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:47:52,760 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:47:52,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-23 13:47:55,866 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:47:56,362 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:47:56,363 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-23 13:47:56,398 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/data/98c7845fc/d7a203d4dfda46e899fcebeb3cdfabcc/FLAG8c6aad251 [2022-11-23 13:47:56,432 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/data/98c7845fc/d7a203d4dfda46e899fcebeb3cdfabcc [2022-11-23 13:47:56,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:47:56,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:47:56,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:47:56,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:47:56,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:47:56,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:56" (1/1) ... [2022-11-23 13:47:56,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c38336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:56, skipping insertion in model container [2022-11-23 13:47:56,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:56" (1/1) ... [2022-11-23 13:47:56,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:47:56,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:47:57,714 WARN L237 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_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-23 13:47:57,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:47:57,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:47:58,152 WARN L237 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_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-23 13:47:58,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:47:58,256 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:47:58,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58 WrapperNode [2022-11-23 13:47:58,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:47:58,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:47:58,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:47:58,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:47:58,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,486 INFO L138 Inliner]: procedures = 191, calls = 829, calls flagged for inlining = 88, calls inlined = 74, statements flattened = 2144 [2022-11-23 13:47:58,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:47:58,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:47:58,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:47:58,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:47:58,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:47:58,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:47:58,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:47:58,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:47:58,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (1/1) ... [2022-11-23 13:47:58,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:47:58,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:47:58,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:47:58,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2022-11-23 13:47:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:47:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-23 13:47:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-23 13:47:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 13:47:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 13:47:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 13:47:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 13:47:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 13:47:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 13:47:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2022-11-23 13:47:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2022-11-23 13:47:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:47:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:47:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 13:47:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 13:47:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 13:47:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 13:47:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2022-11-23 13:47:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2022-11-23 13:47:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:47:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 13:47:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 13:47:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 13:47:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 13:47:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 13:47:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 13:47:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2022-11-23 13:47:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2022-11-23 13:47:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-23 13:47:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-23 13:47:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:47:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:47:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2022-11-23 13:47:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2022-11-23 13:47:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-23 13:47:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-23 13:47:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:47:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2022-11-23 13:47:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2022-11-23 13:47:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 13:47:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 13:47:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:47:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2022-11-23 13:47:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2022-11-23 13:47:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:47:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:47:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 13:47:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2022-11-23 13:47:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2022-11-23 13:47:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2022-11-23 13:47:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2022-11-23 13:47:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:47:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-11-23 13:47:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-11-23 13:47:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 13:47:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 13:47:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 13:47:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 13:47:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-23 13:47:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-23 13:47:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-23 13:47:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-23 13:47:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-11-23 13:47:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-11-23 13:47:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:47:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:47:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2022-11-23 13:47:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2022-11-23 13:47:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 13:47:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 13:47:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-23 13:47:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-23 13:47:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 13:47:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 13:47:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 13:47:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 13:47:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 13:47:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 13:47:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 13:47:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 13:47:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 13:47:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 13:47:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:47:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-23 13:47:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-23 13:47:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 13:47:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 13:47:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:47:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 13:47:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 13:47:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 13:47:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 13:47:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:47:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:47:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 13:47:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 13:47:59,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:47:59,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:48:08,577 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:48:09,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:48:09,015 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 13:48:09,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:09 BoogieIcfgContainer [2022-11-23 13:48:09,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:48:09,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:48:09,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:48:09,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:48:09,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:47:56" (1/3) ... [2022-11-23 13:48:09,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660568d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:09, skipping insertion in model container [2022-11-23 13:48:09,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58" (2/3) ... [2022-11-23 13:48:09,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660568d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:09, skipping insertion in model container [2022-11-23 13:48:09,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:09" (3/3) ... [2022-11-23 13:48:09,037 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-23 13:48:09,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:48:09,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:48:09,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:48:09,162 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@327734a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:48:09,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:48:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-11-23 13:48:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 13:48:09,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:09,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:09,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash -284689213, now seen corresponding path program 1 times [2022-11-23 13:48:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:09,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900949616] [2022-11-23 13:48:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:09,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:48:09,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:09,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900949616] [2022-11-23 13:48:09,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900949616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:09,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:09,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:48:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766894721] [2022-11-23 13:48:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:09,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:48:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:09,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:48:09,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:09,622 INFO L87 Difference]: Start difference. First operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:10,169 INFO L93 Difference]: Finished difference Result 1032 states and 1488 transitions. [2022-11-23 13:48:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:48:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 13:48:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:10,195 INFO L225 Difference]: With dead ends: 1032 [2022-11-23 13:48:10,196 INFO L226 Difference]: Without dead ends: 515 [2022-11-23 13:48:10,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:10,212 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 731 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:10,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 648 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 13:48:10,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-23 13:48:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2022-11-23 13:48:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 337 states have (on average 1.3827893175074184) internal successors, (466), 346 states have internal predecessors, (466), 136 states have call successors, (136), 42 states have call predecessors, (136), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-23 13:48:10,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 734 transitions. [2022-11-23 13:48:10,341 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 734 transitions. Word has length 10 [2022-11-23 13:48:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:10,343 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 734 transitions. [2022-11-23 13:48:10,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 734 transitions. [2022-11-23 13:48:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 13:48:10,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:10,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:10,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:48:10,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:10,348 INFO L85 PathProgramCache]: Analyzing trace with hash -235746047, now seen corresponding path program 1 times [2022-11-23 13:48:10,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:10,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589287576] [2022-11-23 13:48:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:48:10,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:10,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589287576] [2022-11-23 13:48:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589287576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:10,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:48:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161406423] [2022-11-23 13:48:10,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:10,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:48:10,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:10,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:48:10,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:10,453 INFO L87 Difference]: Start difference. First operand 515 states and 734 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:10,843 INFO L93 Difference]: Finished difference Result 517 states and 735 transitions. [2022-11-23 13:48:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:48:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-23 13:48:10,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:10,848 INFO L225 Difference]: With dead ends: 517 [2022-11-23 13:48:10,848 INFO L226 Difference]: Without dead ends: 514 [2022-11-23 13:48:10,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:10,854 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 726 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:10,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 645 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 13:48:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-23 13:48:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2022-11-23 13:48:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 337 states have (on average 1.3798219584569733) internal successors, (465), 345 states have internal predecessors, (465), 135 states have call successors, (135), 42 states have call predecessors, (135), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-23 13:48:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 732 transitions. [2022-11-23 13:48:10,898 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 732 transitions. Word has length 11 [2022-11-23 13:48:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:10,898 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 732 transitions. [2022-11-23 13:48:10,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 732 transitions. [2022-11-23 13:48:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 13:48:10,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:10,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:10,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:48:10,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1281496966, now seen corresponding path program 1 times [2022-11-23 13:48:10,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:10,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838019626] [2022-11-23 13:48:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:10,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:48:11,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:11,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838019626] [2022-11-23 13:48:11,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838019626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:11,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:11,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:48:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722010428] [2022-11-23 13:48:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:11,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:48:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:48:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:11,024 INFO L87 Difference]: Start difference. First operand 514 states and 732 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:11,662 INFO L93 Difference]: Finished difference Result 655 states and 919 transitions. [2022-11-23 13:48:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:48:11,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 13:48:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:11,667 INFO L225 Difference]: With dead ends: 655 [2022-11-23 13:48:11,667 INFO L226 Difference]: Without dead ends: 645 [2022-11-23 13:48:11,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:11,669 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 229 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:11,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1285 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 13:48:11,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-23 13:48:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2022-11-23 13:48:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 416 states have (on average 1.3557692307692308) internal successors, (564), 427 states have internal predecessors, (564), 169 states have call successors, (169), 61 states have call predecessors, (169), 59 states have return successors, (170), 161 states have call predecessors, (170), 166 states have call successors, (170) [2022-11-23 13:48:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 903 transitions. [2022-11-23 13:48:11,718 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 903 transitions. Word has length 12 [2022-11-23 13:48:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:11,718 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 903 transitions. [2022-11-23 13:48:11,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:48:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 903 transitions. [2022-11-23 13:48:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 13:48:11,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:11,721 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:48:11,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:48:11,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash -588509230, now seen corresponding path program 1 times [2022-11-23 13:48:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:11,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129986497] [2022-11-23 13:48:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:11,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:48:11,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:11,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129986497] [2022-11-23 13:48:11,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129986497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:11,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:11,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:48:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379660939] [2022-11-23 13:48:11,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:11,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:48:11,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:11,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:48:11,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:11,816 INFO L87 Difference]: Start difference. First operand 645 states and 903 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:48:12,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:12,389 INFO L93 Difference]: Finished difference Result 1339 states and 1892 transitions. [2022-11-23 13:48:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:48:12,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-23 13:48:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:12,394 INFO L225 Difference]: With dead ends: 1339 [2022-11-23 13:48:12,394 INFO L226 Difference]: Without dead ends: 698 [2022-11-23 13:48:12,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:48:12,397 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 34 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:12,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1266 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 13:48:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-11-23 13:48:12,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 691. [2022-11-23 13:48:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 452 states have (on average 1.3606194690265487) internal successors, (615), 463 states have internal predecessors, (615), 179 states have call successors, (179), 61 states have call predecessors, (179), 59 states have return successors, (184), 171 states have call predecessors, (184), 176 states have call successors, (184) [2022-11-23 13:48:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 978 transitions. [2022-11-23 13:48:12,479 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 978 transitions. Word has length 35 [2022-11-23 13:48:12,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:12,479 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 978 transitions. [2022-11-23 13:48:12,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:48:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 978 transitions. [2022-11-23 13:48:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 13:48:12,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:12,489 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:48:12,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:48:12,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:12,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:12,490 INFO L85 PathProgramCache]: Analyzing trace with hash 723843051, now seen corresponding path program 1 times [2022-11-23 13:48:12,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:12,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919084267] [2022-11-23 13:48:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:48:12,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:12,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919084267] [2022-11-23 13:48:12,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919084267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:12,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:12,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:48:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969336081] [2022-11-23 13:48:12,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:48:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:48:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:48:12,941 INFO L87 Difference]: Start difference. First operand 691 states and 978 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:48:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:14,079 INFO L93 Difference]: Finished difference Result 750 states and 1038 transitions. [2022-11-23 13:48:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:48:14,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2022-11-23 13:48:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:14,088 INFO L225 Difference]: With dead ends: 750 [2022-11-23 13:48:14,093 INFO L226 Difference]: Without dead ends: 747 [2022-11-23 13:48:14,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:48:14,095 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 388 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:14,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1995 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 13:48:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-23 13:48:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2022-11-23 13:48:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 484 states have (on average 1.3471074380165289) internal successors, (652), 495 states have internal predecessors, (652), 189 states have call successors, (189), 76 states have call predecessors, (189), 73 states have return successors, (194), 181 states have call predecessors, (194), 186 states have call successors, (194) [2022-11-23 13:48:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1035 transitions. [2022-11-23 13:48:14,174 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1035 transitions. Word has length 43 [2022-11-23 13:48:14,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:14,174 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1035 transitions. [2022-11-23 13:48:14,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:48:14,175 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1035 transitions. [2022-11-23 13:48:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 13:48:14,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:14,180 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:14,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:48:14,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:14,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1560851364, now seen corresponding path program 1 times [2022-11-23 13:48:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:14,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607764651] [2022-11-23 13:48:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:14,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:48:14,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:14,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607764651] [2022-11-23 13:48:14,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607764651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:14,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:14,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 13:48:14,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84737267] [2022-11-23 13:48:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:14,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 13:48:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 13:48:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:48:14,751 INFO L87 Difference]: Start difference. First operand 747 states and 1035 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 13:48:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:17,691 INFO L93 Difference]: Finished difference Result 907 states and 1258 transitions. [2022-11-23 13:48:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:48:17,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-23 13:48:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:17,704 INFO L225 Difference]: With dead ends: 907 [2022-11-23 13:48:17,704 INFO L226 Difference]: Without dead ends: 897 [2022-11-23 13:48:17,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:48:17,706 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 597 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:17,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1718 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-23 13:48:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-11-23 13:48:17,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 872. [2022-11-23 13:48:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 566 states have (on average 1.3462897526501767) internal successors, (762), 578 states have internal predecessors, (762), 218 states have call successors, (218), 90 states have call predecessors, (218), 87 states have return successors, (223), 210 states have call predecessors, (223), 215 states have call successors, (223) [2022-11-23 13:48:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1203 transitions. [2022-11-23 13:48:17,811 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1203 transitions. Word has length 46 [2022-11-23 13:48:17,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:17,811 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1203 transitions. [2022-11-23 13:48:17,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 13:48:17,812 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1203 transitions. [2022-11-23 13:48:17,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 13:48:17,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:17,815 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:17,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:48:17,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1188169365, now seen corresponding path program 1 times [2022-11-23 13:48:17,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:17,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480680503] [2022-11-23 13:48:17,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:17,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 13:48:17,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:17,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480680503] [2022-11-23 13:48:17,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480680503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:17,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:17,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:48:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073448709] [2022-11-23 13:48:17,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:17,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:48:17,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:48:17,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:48:17,936 INFO L87 Difference]: Start difference. First operand 872 states and 1203 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-23 13:48:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:18,671 INFO L93 Difference]: Finished difference Result 1756 states and 2422 transitions. [2022-11-23 13:48:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:48:18,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2022-11-23 13:48:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:18,678 INFO L225 Difference]: With dead ends: 1756 [2022-11-23 13:48:18,678 INFO L226 Difference]: Without dead ends: 882 [2022-11-23 13:48:18,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:48:18,683 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 13 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:18,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1937 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 13:48:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-11-23 13:48:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 875. [2022-11-23 13:48:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 568 states have (on average 1.341549295774648) internal successors, (762), 580 states have internal predecessors, (762), 219 states have call successors, (219), 90 states have call predecessors, (219), 87 states have return successors, (224), 211 states have call predecessors, (224), 216 states have call successors, (224) [2022-11-23 13:48:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1205 transitions. [2022-11-23 13:48:18,746 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1205 transitions. Word has length 57 [2022-11-23 13:48:18,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:18,746 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1205 transitions. [2022-11-23 13:48:18,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-23 13:48:18,747 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1205 transitions. [2022-11-23 13:48:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 13:48:18,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:18,749 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:18,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:48:18,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1491442427, now seen corresponding path program 1 times [2022-11-23 13:48:18,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:18,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252071997] [2022-11-23 13:48:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:48:19,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:19,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252071997] [2022-11-23 13:48:19,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252071997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:48:19,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:48:19,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:48:19,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157429040] [2022-11-23 13:48:19,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:48:19,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:48:19,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:48:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:48:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:48:19,124 INFO L87 Difference]: Start difference. First operand 875 states and 1205 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-23 13:48:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:20,156 INFO L93 Difference]: Finished difference Result 1051 states and 1485 transitions. [2022-11-23 13:48:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:48:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2022-11-23 13:48:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:20,164 INFO L225 Difference]: With dead ends: 1051 [2022-11-23 13:48:20,164 INFO L226 Difference]: Without dead ends: 1048 [2022-11-23 13:48:20,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:48:20,167 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 125 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:20,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2672 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 13:48:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-11-23 13:48:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 891. [2022-11-23 13:48:20,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 578 states have (on average 1.3391003460207613) internal successors, (774), 590 states have internal predecessors, (774), 222 states have call successors, (222), 93 states have call predecessors, (222), 90 states have return successors, (227), 214 states have call predecessors, (227), 219 states have call successors, (227) [2022-11-23 13:48:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1223 transitions. [2022-11-23 13:48:20,285 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1223 transitions. Word has length 64 [2022-11-23 13:48:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:20,286 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1223 transitions. [2022-11-23 13:48:20,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-23 13:48:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1223 transitions. [2022-11-23 13:48:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 13:48:20,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:20,289 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:20,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 13:48:20,289 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:20,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:20,290 INFO L85 PathProgramCache]: Analyzing trace with hash -790777785, now seen corresponding path program 1 times [2022-11-23 13:48:20,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:20,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507787267] [2022-11-23 13:48:20,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:20,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:48:20,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:20,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507787267] [2022-11-23 13:48:20,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507787267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:48:20,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969431407] [2022-11-23 13:48:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:48:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:48:20,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:48:20,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9252eca-92d7-44ec-ad0a-72d3dbe64f22/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:48:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:20,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:48:20,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:48:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:48:21,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:48:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:48:21,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969431407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:48:21,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1529318648] [2022-11-23 13:48:21,289 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-23 13:48:21,289 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:48:21,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:48:21,299 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:48:21,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:48:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:24,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:24,613 INFO L217 Elim1Store]: Index analysis took 147 ms [2022-11-23 13:48:27,531 INFO L321 Elim1Store]: treesize reduction 1620, result has 18.7 percent of original size [2022-11-23 13:48:27,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 23 select indices, 23 select index equivalence classes, 179 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 97 case distinctions, treesize of input 155 treesize of output 481 [2022-11-23 13:48:27,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:27,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:27,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 235 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 165 [2022-11-23 13:48:28,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 13:48:28,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 13:48:29,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-23 13:48:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:29,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-23 13:48:30,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:30,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:30,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:30,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-23 13:48:30,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:31,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:31,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:31,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-23 13:48:36,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 78 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-23 13:48:36,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:36,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,640 INFO L321 Elim1Store]: treesize reduction 948, result has 30.4 percent of original size [2022-11-23 13:48:37,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 525 [2022-11-23 13:48:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,391 INFO L321 Elim1Store]: treesize reduction 796, result has 41.6 percent of original size [2022-11-23 13:48:39,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 32 select indices, 32 select index equivalence classes, 45 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 33 case distinctions, treesize of input 266 treesize of output 662 [2022-11-23 13:48:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:39,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:41,912 INFO L321 Elim1Store]: treesize reduction 698, result has 48.8 percent of original size [2022-11-23 13:48:41,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 775 [2022-11-23 13:48:42,546 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 76