./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:05:53,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:05:53,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:05:53,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:05:53,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:05:53,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:05:53,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:05:53,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:05:53,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:05:53,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:05:53,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:05:53,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:05:53,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:05:53,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:05:53,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:05:53,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:05:53,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:05:53,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:05:53,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:05:53,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:05:53,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:05:53,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:05:53,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:05:53,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:05:53,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:05:53,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:05:53,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:05:53,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:05:53,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:05:53,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:05:53,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:05:53,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:05:53,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:05:53,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:05:53,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:05:53,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:05:53,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:05:53,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:05:53,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:05:53,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:05:53,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:05:53,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:05:53,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:05:53,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:05:53,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:05:53,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:05:53,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:05:53,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:05:53,459 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:05:53,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:05:53,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:05:53,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:05:53,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:05:53,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:05:53,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:05:53,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:05:53,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:05:53,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:05:53,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:05:53,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:05:53,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:05:53,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:05:53,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:05:53,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:05:53,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:05:53,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:05:53,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:05:53,471 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:05:53,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:05:53,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:05:53,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:05:53,474 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_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 [2021-11-22 15:05:53,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:05:53,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:05:53,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:05:53,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:05:53,900 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:05:53,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-22 15:05:54,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/data/aee8c2fc9/5739737a59df4cd5b4e52c953603d088/FLAG619447c7b [2021-11-22 15:05:55,318 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:05:55,319 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-22 15:05:55,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/data/aee8c2fc9/5739737a59df4cd5b4e52c953603d088/FLAG619447c7b [2021-11-22 15:05:55,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/data/aee8c2fc9/5739737a59df4cd5b4e52c953603d088 [2021-11-22 15:05:55,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:05:55,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:05:55,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:05:55,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:05:55,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:05:55,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:05:55" (1/1) ... [2021-11-22 15:05:55,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535b5e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:55, skipping insertion in model container [2021-11-22 15:05:55,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:05:55" (1/1) ... [2021-11-22 15:05:55,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:05:55,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:05:57,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-22 15:05:58,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:05:58,150 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:05:58,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-22 15:05:58,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:05:58,820 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:05:58,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58 WrapperNode [2021-11-22 15:05:58,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:05:58,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:05:58,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:05:58,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:05:58,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:05:58,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:05:59,494 INFO L137 Inliner]: procedures = 224, calls = 1230, calls flagged for inlining = 493, calls inlined = 1616, statements flattened = 15553 [2021-11-22 15:05:59,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:05:59,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:05:59,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:05:59,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:05:59,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:05:59,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:05:59,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:05:59,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:06:00,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:06:00,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:06:00,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:06:00,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:06:00,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:06:00,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:06:00,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:06:00,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (1/1) ... [2021-11-22 15:06:00,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:00,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:06:00,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:06:00,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfba5989-50a9-4616-a12e-8b74de072ee9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:06:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:06:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:06:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:06:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 15:06:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:06:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:06:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:06:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:06:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:06:01,677 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:06:01,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:06:12,403 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:06:12,431 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:06:12,432 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:06:12,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:12 BoogieIcfgContainer [2021-11-22 15:06:12,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:06:12,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:06:12,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:06:12,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:06:12,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:05:55" (1/3) ... [2021-11-22 15:06:12,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247f979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:12, skipping insertion in model container [2021-11-22 15:06:12,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:05:58" (2/3) ... [2021-11-22 15:06:12,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247f979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:12, skipping insertion in model container [2021-11-22 15:06:12,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:12" (3/3) ... [2021-11-22 15:06:12,452 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-22 15:06:12,459 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:06:12,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-22 15:06:12,535 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:06:12,543 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:06:12,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-22 15:06:12,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 2720 states, 2699 states have (on average 1.2904779547980734) internal successors, (3483), 2719 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 15:06:12,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:12,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:12,636 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:12,642 INFO L85 PathProgramCache]: Analyzing trace with hash 710931829, now seen corresponding path program 1 times [2021-11-22 15:06:12,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:12,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253160797] [2021-11-22 15:06:12,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:12,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:13,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:13,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253160797] [2021-11-22 15:06:13,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253160797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:13,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:13,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:06:13,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141129789] [2021-11-22 15:06:13,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:13,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:06:13,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:06:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:06:13,287 INFO L87 Difference]: Start difference. First operand has 2720 states, 2699 states have (on average 1.2904779547980734) internal successors, (3483), 2719 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:13,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:13,494 INFO L93 Difference]: Finished difference Result 5416 states and 6941 transitions. [2021-11-22 15:06:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:06:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-22 15:06:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:13,541 INFO L225 Difference]: With dead ends: 5416 [2021-11-22 15:06:13,541 INFO L226 Difference]: Without dead ends: 2654 [2021-11-22 15:06:13,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:06:13,569 INFO L933 BasicCegarLoop]: 3409 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:13,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:06:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2021-11-22 15:06:13,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2654. [2021-11-22 15:06:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2634 states have (on average 1.2619589977220957) internal successors, (3324), 2653 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3324 transitions. [2021-11-22 15:06:13,808 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3324 transitions. Word has length 38 [2021-11-22 15:06:13,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:13,809 INFO L470 AbstractCegarLoop]: Abstraction has 2654 states and 3324 transitions. [2021-11-22 15:06:13,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:13,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3324 transitions. [2021-11-22 15:06:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 15:06:13,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:13,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:13,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:06:13,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:13,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash 686315901, now seen corresponding path program 1 times [2021-11-22 15:06:13,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:13,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235067995] [2021-11-22 15:06:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:13,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:14,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:14,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235067995] [2021-11-22 15:06:14,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235067995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:14,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:14,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:14,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751969820] [2021-11-22 15:06:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:14,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:14,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:14,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:14,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:14,070 INFO L87 Difference]: Start difference. First operand 2654 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:14,449 INFO L93 Difference]: Finished difference Result 6806 states and 8567 transitions. [2021-11-22 15:06:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:14,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-22 15:06:14,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:14,482 INFO L225 Difference]: With dead ends: 6806 [2021-11-22 15:06:14,483 INFO L226 Difference]: Without dead ends: 4177 [2021-11-22 15:06:14,493 INFO L932 BasicCegarLoop]: 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 [2021-11-22 15:06:14,501 INFO L933 BasicCegarLoop]: 3323 mSDtfsCounter, 1987 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 6553 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:14,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1987 Valid, 6553 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:14,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2021-11-22 15:06:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 4011. [2021-11-22 15:06:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4011 states, 3991 states have (on average 1.272863943873716) internal successors, (5080), 4010 states have internal predecessors, (5080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 5080 transitions. [2021-11-22 15:06:14,841 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 5080 transitions. Word has length 38 [2021-11-22 15:06:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:14,842 INFO L470 AbstractCegarLoop]: Abstraction has 4011 states and 5080 transitions. [2021-11-22 15:06:14,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 5080 transitions. [2021-11-22 15:06:14,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-22 15:06:14,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:14,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:14,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:06:14,859 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:14,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash -693396408, now seen corresponding path program 1 times [2021-11-22 15:06:14,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:14,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93797955] [2021-11-22 15:06:14,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:14,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:15,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:15,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93797955] [2021-11-22 15:06:15,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93797955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:15,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:15,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:15,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382287360] [2021-11-22 15:06:15,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:15,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:15,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:15,119 INFO L87 Difference]: Start difference. First operand 4011 states and 5080 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:16,029 INFO L93 Difference]: Finished difference Result 16057 states and 20040 transitions. [2021-11-22 15:06:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:16,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-22 15:06:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:16,121 INFO L225 Difference]: With dead ends: 16057 [2021-11-22 15:06:16,122 INFO L226 Difference]: Without dead ends: 12071 [2021-11-22 15:06:16,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:16,140 INFO L933 BasicCegarLoop]: 7531 mSDtfsCounter, 5134 mSDsluCounter, 7018 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 14549 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:16,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5134 Valid, 14549 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2021-11-22 15:06:16,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 6227. [2021-11-22 15:06:16,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6227 states, 6207 states have (on average 1.2518124697921702) internal successors, (7770), 6226 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:16,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6227 states to 6227 states and 7770 transitions. [2021-11-22 15:06:16,639 INFO L78 Accepts]: Start accepts. Automaton has 6227 states and 7770 transitions. Word has length 51 [2021-11-22 15:06:16,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:16,640 INFO L470 AbstractCegarLoop]: Abstraction has 6227 states and 7770 transitions. [2021-11-22 15:06:16,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6227 states and 7770 transitions. [2021-11-22 15:06:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 15:06:16,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:16,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:16,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:06:16,645 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:16,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash -201173255, now seen corresponding path program 1 times [2021-11-22 15:06:16,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:16,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969855238] [2021-11-22 15:06:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:16,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:16,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:16,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969855238] [2021-11-22 15:06:16,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969855238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:16,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:16,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:16,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037329190] [2021-11-22 15:06:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:16,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:16,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:16,958 INFO L87 Difference]: Start difference. First operand 6227 states and 7770 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:18,209 INFO L93 Difference]: Finished difference Result 27137 states and 33492 transitions. [2021-11-22 15:06:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:18,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-22 15:06:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:18,316 INFO L225 Difference]: With dead ends: 27137 [2021-11-22 15:06:18,317 INFO L226 Difference]: Without dead ends: 20935 [2021-11-22 15:06:18,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:18,336 INFO L933 BasicCegarLoop]: 5425 mSDtfsCounter, 7249 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7249 SdHoareTripleChecker+Valid, 12007 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:18,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7249 Valid, 12007 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20935 states. [2021-11-22 15:06:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20935 to 11961. [2021-11-22 15:06:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11961 states, 11941 states have (on average 1.248471652290428) internal successors, (14908), 11960 states have internal predecessors, (14908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:19,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11961 states to 11961 states and 14908 transitions. [2021-11-22 15:06:19,058 INFO L78 Accepts]: Start accepts. Automaton has 11961 states and 14908 transitions. Word has length 52 [2021-11-22 15:06:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:19,060 INFO L470 AbstractCegarLoop]: Abstraction has 11961 states and 14908 transitions. [2021-11-22 15:06:19,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 11961 states and 14908 transitions. [2021-11-22 15:06:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 15:06:19,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:19,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:19,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:06:19,064 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:19,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:19,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2122123977, now seen corresponding path program 1 times [2021-11-22 15:06:19,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:19,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287328923] [2021-11-22 15:06:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:19,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:19,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:19,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287328923] [2021-11-22 15:06:19,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287328923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:19,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:19,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:19,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176302399] [2021-11-22 15:06:19,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:19,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:19,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:19,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:19,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:19,329 INFO L87 Difference]: Start difference. First operand 11961 states and 14908 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:21,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:21,374 INFO L93 Difference]: Finished difference Result 52795 states and 65110 transitions. [2021-11-22 15:06:21,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:21,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-22 15:06:21,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:21,506 INFO L225 Difference]: With dead ends: 52795 [2021-11-22 15:06:21,507 INFO L226 Difference]: Without dead ends: 40859 [2021-11-22 15:06:21,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:21,535 INFO L933 BasicCegarLoop]: 5424 mSDtfsCounter, 7255 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7255 SdHoareTripleChecker+Valid, 12006 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:21,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7255 Valid, 12006 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40859 states. [2021-11-22 15:06:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40859 to 23004. [2021-11-22 15:06:23,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23004 states, 22984 states have (on average 1.2446049425687435) internal successors, (28606), 23003 states have internal predecessors, (28606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23004 states to 23004 states and 28606 transitions. [2021-11-22 15:06:23,085 INFO L78 Accepts]: Start accepts. Automaton has 23004 states and 28606 transitions. Word has length 53 [2021-11-22 15:06:23,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:23,086 INFO L470 AbstractCegarLoop]: Abstraction has 23004 states and 28606 transitions. [2021-11-22 15:06:23,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 23004 states and 28606 transitions. [2021-11-22 15:06:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-22 15:06:23,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:23,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:23,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:06:23,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1542053496, now seen corresponding path program 1 times [2021-11-22 15:06:23,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:23,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957607708] [2021-11-22 15:06:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:23,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:23,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:23,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957607708] [2021-11-22 15:06:23,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957607708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:23,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:23,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:23,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189750713] [2021-11-22 15:06:23,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:23,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:23,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:23,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:23,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:23,342 INFO L87 Difference]: Start difference. First operand 23004 states and 28606 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:26,592 INFO L93 Difference]: Finished difference Result 102828 states and 126600 transitions. [2021-11-22 15:06:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:26,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-22 15:06:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:26,866 INFO L225 Difference]: With dead ends: 102828 [2021-11-22 15:06:26,867 INFO L226 Difference]: Without dead ends: 79849 [2021-11-22 15:06:27,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:27,077 INFO L933 BasicCegarLoop]: 5423 mSDtfsCounter, 7261 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7261 SdHoareTripleChecker+Valid, 12005 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:27,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7261 Valid, 12005 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79849 states. [2021-11-22 15:06:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79849 to 44239. [2021-11-22 15:06:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44239 states, 44219 states have (on average 1.2402813270313666) internal successors, (54844), 44238 states have internal predecessors, (54844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44239 states to 44239 states and 54844 transitions. [2021-11-22 15:06:29,470 INFO L78 Accepts]: Start accepts. Automaton has 44239 states and 54844 transitions. Word has length 54 [2021-11-22 15:06:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:29,471 INFO L470 AbstractCegarLoop]: Abstraction has 44239 states and 54844 transitions. [2021-11-22 15:06:29,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 44239 states and 54844 transitions. [2021-11-22 15:06:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 15:06:29,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:29,474 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:29,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:06:29,474 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:29,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash -981776582, now seen corresponding path program 1 times [2021-11-22 15:06:29,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:29,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124253831] [2021-11-22 15:06:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:29,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 15:06:29,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:29,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124253831] [2021-11-22 15:06:29,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124253831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:29,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:29,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:06:29,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335964318] [2021-11-22 15:06:29,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:29,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:06:29,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:29,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:06:29,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:29,699 INFO L87 Difference]: Start difference. First operand 44239 states and 54844 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:34,604 INFO L93 Difference]: Finished difference Result 147127 states and 181512 transitions. [2021-11-22 15:06:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:06:34,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-22 15:06:34,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:34,933 INFO L225 Difference]: With dead ends: 147127 [2021-11-22 15:06:34,933 INFO L226 Difference]: Without dead ends: 102913 [2021-11-22 15:06:35,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:06:35,101 INFO L933 BasicCegarLoop]: 6305 mSDtfsCounter, 11453 mSDsluCounter, 13739 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11453 SdHoareTripleChecker+Valid, 20044 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:35,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11453 Valid, 20044 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:06:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102913 states. [2021-11-22 15:06:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102913 to 44319. [2021-11-22 15:06:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44319 states, 44299 states have (on average 1.239847400618524) internal successors, (54924), 44318 states have internal predecessors, (54924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44319 states to 44319 states and 54924 transitions. [2021-11-22 15:06:38,290 INFO L78 Accepts]: Start accepts. Automaton has 44319 states and 54924 transitions. Word has length 60 [2021-11-22 15:06:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:38,291 INFO L470 AbstractCegarLoop]: Abstraction has 44319 states and 54924 transitions. [2021-11-22 15:06:38,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 44319 states and 54924 transitions. [2021-11-22 15:06:38,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-22 15:06:38,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:38,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:38,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:06:38,296 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:38,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash -27564733, now seen corresponding path program 1 times [2021-11-22 15:06:38,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:38,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009966780] [2021-11-22 15:06:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:38,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:38,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:38,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009966780] [2021-11-22 15:06:38,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009966780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:38,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:38,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:06:38,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611015154] [2021-11-22 15:06:38,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:38,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:06:38,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:38,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:06:38,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:38,585 INFO L87 Difference]: Start difference. First operand 44319 states and 54924 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:45,048 INFO L93 Difference]: Finished difference Result 179217 states and 225709 transitions. [2021-11-22 15:06:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:06:45,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-22 15:06:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:45,407 INFO L225 Difference]: With dead ends: 179217 [2021-11-22 15:06:45,407 INFO L226 Difference]: Without dead ends: 134923 [2021-11-22 15:06:45,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:45,495 INFO L933 BasicCegarLoop]: 3324 mSDtfsCounter, 11245 mSDsluCounter, 11563 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11245 SdHoareTripleChecker+Valid, 14887 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:45,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11245 Valid, 14887 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134923 states. [2021-11-22 15:06:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134923 to 104635. [2021-11-22 15:06:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104635 states, 104615 states have (on average 1.2621325813697843) internal successors, (132038), 104634 states have internal predecessors, (132038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104635 states to 104635 states and 132038 transitions. [2021-11-22 15:06:52,128 INFO L78 Accepts]: Start accepts. Automaton has 104635 states and 132038 transitions. Word has length 126 [2021-11-22 15:06:52,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:52,129 INFO L470 AbstractCegarLoop]: Abstraction has 104635 states and 132038 transitions. [2021-11-22 15:06:52,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 104635 states and 132038 transitions. [2021-11-22 15:06:52,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 15:06:52,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:52,132 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:52,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 15:06:52,132 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-22 15:06:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash -77945610, now seen corresponding path program 1 times [2021-11-22 15:06:52,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:52,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936256404] [2021-11-22 15:06:52,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:52,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:52,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:52,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936256404] [2021-11-22 15:06:52,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936256404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:52,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:52,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:52,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341720739] [2021-11-22 15:06:52,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:52,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:52,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:52,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:52,319 INFO L87 Difference]: Start difference. First operand 104635 states and 132038 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)