./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--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7e20a2a63b20681973e7da2f472e7774f2d8f807c6228dba0d1eb9a52abaa4b7 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:43:36,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:43:36,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:43:36,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:43:36,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:43:36,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:43:36,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:43:36,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:43:36,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:43:36,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:43:36,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:43:36,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:43:36,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:43:36,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:43:36,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:43:36,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:43:36,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:43:36,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:43:36,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:43:36,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:43:36,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:43:36,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:43:36,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:43:36,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:43:36,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:43:36,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:43:36,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:43:36,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:43:36,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:43:36,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:43:36,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:43:36,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:43:36,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:43:36,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:43:36,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:43:36,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:43:36,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:43:36,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:43:36,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:43:36,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:43:36,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:43:36,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:43:36,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:43:36,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:43:36,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:43:36,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:43:36,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:43:36,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:43:36,618 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:43:36,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:43:36,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:43:36,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:43:36,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:43:36,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:43:36,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:43:36,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:43:36,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:43:36,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:43:36,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:43:36,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:43:36,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:43:36,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:43:36,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:43:36,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:43:36,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:43:36,624 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e20a2a63b20681973e7da2f472e7774f2d8f807c6228dba0d1eb9a52abaa4b7 [2021-11-07 15:43:36,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:43:36,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:43:36,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:43:36,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:43:36,848 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:43:36,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-07 15:43:36,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166ed4fcd/a47547a2faa944daa23e456b59e39751/FLAG8d89ad84f [2021-11-07 15:43:37,825 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:43:37,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-07 15:43:37,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166ed4fcd/a47547a2faa944daa23e456b59e39751/FLAG8d89ad84f [2021-11-07 15:43:38,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166ed4fcd/a47547a2faa944daa23e456b59e39751 [2021-11-07 15:43:38,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:43:38,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:43:38,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:43:38,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:43:38,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:43:38,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:38" (1/1) ... [2021-11-07 15:43:38,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695cf228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:38, skipping insertion in model container [2021-11-07 15:43:38,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:38" (1/1) ... [2021-11-07 15:43:38,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:43:38,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:43:42,007 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i[401891,401904] [2021-11-07 15:43:42,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:43:42,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:43:42,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i[401891,401904] [2021-11-07 15:43:42,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:43:42,921 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:43:42,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42 WrapperNode [2021-11-07 15:43:42,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:43:42,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:43:42,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:43:42,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:43:42,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:43,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:44,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:43:44,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:43:44,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:43:44,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:43:44,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:44,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:45,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:45,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:46,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:46,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:47,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:47,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:43:47,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:43:47,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:43:47,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:43:47,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (1/1) ... [2021-11-07 15:43:47,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:43:47,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:43:47,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 15:43:47,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:43:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:43:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:43:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:43:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:43:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:43:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:43:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:43:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:43:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:43:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:56:55,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:56:55,318 INFO L299 CfgBuilder]: Removed 10732 assume(true) statements. [2021-11-07 15:56:55,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:56:55 BoogieIcfgContainer [2021-11-07 15:56:55,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:56:55,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:56:55,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:56:55,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:56:55,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:43:38" (1/3) ... [2021-11-07 15:56:55,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8318ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:56:55, skipping insertion in model container [2021-11-07 15:56:55,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:42" (2/3) ... [2021-11-07 15:56:55,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8318ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:56:55, skipping insertion in model container [2021-11-07 15:56:55,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:56:55" (3/3) ... [2021-11-07 15:56:55,341 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-07 15:56:55,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:56:55,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-07 15:56:55,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:56:55,455 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 [2021-11-07 15:56:55,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-07 15:56:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 12917 states, 12899 states have (on average 1.407473447554074) internal successors, (18155), 12916 states have internal predecessors, (18155), 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) [2021-11-07 15:56:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 15:56:55,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:56:55,645 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] [2021-11-07 15:56:55,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:56:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:56:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1858011625, now seen corresponding path program 1 times [2021-11-07 15:56:55,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:56:55,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140886148] [2021-11-07 15:56:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:56:55,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:56:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:56:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:56:57,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:56:57,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140886148] [2021-11-07 15:56:57,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140886148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:56:57,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:56:57,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:56:57,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179554073] [2021-11-07 15:56:57,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:56:57,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:56:57,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:56:57,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:56:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:56:57,091 INFO L87 Difference]: Start difference. First operand has 12917 states, 12899 states have (on average 1.407473447554074) internal successors, (18155), 12916 states have internal predecessors, (18155), 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 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-07 15:56:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:56:57,452 INFO L93 Difference]: Finished difference Result 25830 states and 36305 transitions. [2021-11-07 15:56:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:56:57,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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 85 [2021-11-07 15:56:57,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:56:57,539 INFO L225 Difference]: With dead ends: 25830 [2021-11-07 15:56:57,539 INFO L226 Difference]: Without dead ends: 12817 [2021-11-07 15:56:57,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:56:57,579 INFO L933 BasicCegarLoop]: 18100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:56:57,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18100 Invalid, 0 Unknown, 0 Unchecked, 25.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:56:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12817 states. [2021-11-07 15:56:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12817 to 12817. [2021-11-07 15:56:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12817 states, 12800 states have (on average 1.398828125) internal successors, (17905), 12816 states have internal predecessors, (17905), 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) [2021-11-07 15:56:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12817 states to 12817 states and 17905 transitions. [2021-11-07 15:56:58,033 INFO L78 Accepts]: Start accepts. Automaton has 12817 states and 17905 transitions. Word has length 85 [2021-11-07 15:56:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:56:58,034 INFO L470 AbstractCegarLoop]: Abstraction has 12817 states and 17905 transitions. [2021-11-07 15:56:58,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-07 15:56:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 12817 states and 17905 transitions. [2021-11-07 15:56:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 15:56:58,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:56:58,041 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] [2021-11-07 15:56:58,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:56:58,042 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:56:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:56:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1554546695, now seen corresponding path program 1 times [2021-11-07 15:56:58,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:56:58,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548112306] [2021-11-07 15:56:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:56:58,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:56:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:56:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:56:59,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:56:59,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548112306] [2021-11-07 15:56:59,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548112306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:56:59,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:56:59,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:56:59,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497560532] [2021-11-07 15:56:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:56:59,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:56:59,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:56:59,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:56:59,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:56:59,169 INFO L87 Difference]: Start difference. First operand 12817 states and 17905 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-07 15:57:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:57:00,846 INFO L93 Difference]: Finished difference Result 35746 states and 50092 transitions. [2021-11-07 15:57:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:57:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-07 15:57:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:57:00,949 INFO L225 Difference]: With dead ends: 35746 [2021-11-07 15:57:00,949 INFO L226 Difference]: Without dead ends: 22996 [2021-11-07 15:57:00,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:00,979 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 14422 mSDsluCounter, 17728 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 664.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14422 SdHoareTripleChecker+Valid, 35632 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.60ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 736.47ms IncrementalHoareTripleChecker+Time [2021-11-07 15:57:00,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14422 Valid, 35632 Invalid, 103 Unknown, 0 Unchecked, 61.60ms Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 736.47ms Time] [2021-11-07 15:57:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22996 states. [2021-11-07 15:57:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22996 to 22622. [2021-11-07 15:57:01,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22622 states, 22605 states have (on average 1.4048219420482195) internal successors, (31756), 22621 states have internal predecessors, (31756), 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) [2021-11-07 15:57:01,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22622 states to 22622 states and 31756 transitions. [2021-11-07 15:57:01,835 INFO L78 Accepts]: Start accepts. Automaton has 22622 states and 31756 transitions. Word has length 85 [2021-11-07 15:57:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:57:01,836 INFO L470 AbstractCegarLoop]: Abstraction has 22622 states and 31756 transitions. [2021-11-07 15:57:01,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-07 15:57:01,838 INFO L276 IsEmpty]: Start isEmpty. Operand 22622 states and 31756 transitions. [2021-11-07 15:57:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 15:57:01,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:57:01,851 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] [2021-11-07 15:57:01,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:57:01,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:57:01,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:57:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1862114098, now seen corresponding path program 1 times [2021-11-07 15:57:01,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:57:01,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204662941] [2021-11-07 15:57:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:57:01,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:57:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:57:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:57:02,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:57:02,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204662941] [2021-11-07 15:57:02,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204662941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:57:02,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:57:02,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:57:02,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298613935] [2021-11-07 15:57:02,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:57:02,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:57:02,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:57:02,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:57:02,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:02,837 INFO L87 Difference]: Start difference. First operand 22622 states and 31756 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-07 15:57:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:57:04,158 INFO L93 Difference]: Finished difference Result 58072 states and 81187 transitions. [2021-11-07 15:57:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:57:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2021-11-07 15:57:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:57:04,267 INFO L225 Difference]: With dead ends: 58072 [2021-11-07 15:57:04,268 INFO L226 Difference]: Without dead ends: 35517 [2021-11-07 15:57:04,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:04,322 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 10922 mSDsluCounter, 17774 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 434.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10922 SdHoareTripleChecker+Valid, 35678 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 495.53ms IncrementalHoareTripleChecker+Time [2021-11-07 15:57:04,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10922 Valid, 35678 Invalid, 59 Unknown, 0 Unchecked, 50.96ms Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 495.53ms Time] [2021-11-07 15:57:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35517 states. [2021-11-07 15:57:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35517 to 35493. [2021-11-07 15:57:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35493 states, 35476 states have (on average 1.3950558123802006) internal successors, (49491), 35492 states have internal predecessors, (49491), 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) [2021-11-07 15:57:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35493 states to 35493 states and 49491 transitions. [2021-11-07 15:57:05,230 INFO L78 Accepts]: Start accepts. Automaton has 35493 states and 49491 transitions. Word has length 114 [2021-11-07 15:57:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:57:05,233 INFO L470 AbstractCegarLoop]: Abstraction has 35493 states and 49491 transitions. [2021-11-07 15:57:05,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-07 15:57:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 35493 states and 49491 transitions. [2021-11-07 15:57:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 15:57:05,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:57:05,246 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] [2021-11-07 15:57:05,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:57:05,247 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:57:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:57:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 322789384, now seen corresponding path program 1 times [2021-11-07 15:57:05,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:57:05,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104556348] [2021-11-07 15:57:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:57:05,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:57:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:57:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:57:06,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:57:06,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104556348] [2021-11-07 15:57:06,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104556348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:57:06,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:57:06,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:57:06,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430293350] [2021-11-07 15:57:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:57:06,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:57:06,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:57:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:57:06,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:06,162 INFO L87 Difference]: Start difference. First operand 35493 states and 49491 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-07 15:57:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:57:07,808 INFO L93 Difference]: Finished difference Result 99479 states and 138934 transitions. [2021-11-07 15:57:07,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:57:07,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2021-11-07 15:57:07,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:57:08,011 INFO L225 Difference]: With dead ends: 99479 [2021-11-07 15:57:08,012 INFO L226 Difference]: Without dead ends: 64053 [2021-11-07 15:57:08,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:08,240 INFO L933 BasicCegarLoop]: 24849 mSDtfsCounter, 15542 mSDsluCounter, 17768 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 447.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15542 SdHoareTripleChecker+Valid, 42617 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 494.94ms IncrementalHoareTripleChecker+Time [2021-11-07 15:57:08,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15542 Valid, 42617 Invalid, 65 Unknown, 0 Unchecked, 54.01ms Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 494.94ms Time] [2021-11-07 15:57:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64053 states. [2021-11-07 15:57:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64053 to 63983. [2021-11-07 15:57:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63983 states, 63966 states have (on average 1.3985085826845511) internal successors, (89457), 63982 states have internal predecessors, (89457), 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) [2021-11-07 15:57:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63983 states to 63983 states and 89457 transitions. [2021-11-07 15:57:09,995 INFO L78 Accepts]: Start accepts. Automaton has 63983 states and 89457 transitions. Word has length 124 [2021-11-07 15:57:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:57:09,996 INFO L470 AbstractCegarLoop]: Abstraction has 63983 states and 89457 transitions. [2021-11-07 15:57:09,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-07 15:57:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 63983 states and 89457 transitions. [2021-11-07 15:57:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 15:57:10,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:57:10,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:57:10,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:57:10,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:57:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:57:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash -369778982, now seen corresponding path program 1 times [2021-11-07 15:57:10,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:57:10,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588153630] [2021-11-07 15:57:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:57:10,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:57:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:57:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:57:10,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:57:10,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588153630] [2021-11-07 15:57:10,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588153630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:57:10,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:57:10,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:57:10,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298234208] [2021-11-07 15:57:10,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:57:10,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:57:10,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:57:10,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:57:10,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:10,973 INFO L87 Difference]: Start difference. First operand 63983 states and 89457 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-07 15:57:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:57:14,127 INFO L93 Difference]: Finished difference Result 191251 states and 267263 transitions. [2021-11-07 15:57:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:57:14,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 152 [2021-11-07 15:57:14,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:57:14,485 INFO L225 Difference]: With dead ends: 191251 [2021-11-07 15:57:14,485 INFO L226 Difference]: Without dead ends: 127335 [2021-11-07 15:57:14,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:14,597 INFO L933 BasicCegarLoop]: 17867 mSDtfsCounter, 17665 mSDsluCounter, 17727 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 916.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17665 SdHoareTripleChecker+Valid, 35594 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.64ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1028.77ms IncrementalHoareTripleChecker+Time [2021-11-07 15:57:14,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17665 Valid, 35594 Invalid, 208 Unknown, 0 Unchecked, 47.64ms Time], IncrementalHoareTripleChecker [48 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1028.77ms Time] [2021-11-07 15:57:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127335 states. [2021-11-07 15:57:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127335 to 127301. [2021-11-07 15:57:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127301 states, 127284 states have (on average 1.3958627950095848) internal successors, (177671), 127300 states have internal predecessors, (177671), 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) [2021-11-07 15:57:17,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127301 states to 127301 states and 177671 transitions. [2021-11-07 15:57:17,555 INFO L78 Accepts]: Start accepts. Automaton has 127301 states and 177671 transitions. Word has length 152 [2021-11-07 15:57:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:57:17,555 INFO L470 AbstractCegarLoop]: Abstraction has 127301 states and 177671 transitions. [2021-11-07 15:57:17,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-07 15:57:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 127301 states and 177671 transitions. [2021-11-07 15:57:17,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-07 15:57:17,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:57:17,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:57:17,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:57:17,576 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 15:57:17,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:57:17,577 INFO L85 PathProgramCache]: Analyzing trace with hash -341691017, now seen corresponding path program 1 times [2021-11-07 15:57:17,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:57:17,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221114240] [2021-11-07 15:57:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:57:17,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:57:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:57:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:57:18,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:57:18,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221114240] [2021-11-07 15:57:18,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221114240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:57:18,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:57:18,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:57:18,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863159777] [2021-11-07 15:57:18,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:57:18,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:57:18,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:57:18,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:57:18,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:18,679 INFO L87 Difference]: Start difference. First operand 127301 states and 177671 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-07 15:57:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:57:23,364 INFO L93 Difference]: Finished difference Result 381073 states and 531809 transitions. [2021-11-07 15:57:23,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:57:23,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2021-11-07 15:57:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:57:24,382 INFO L225 Difference]: With dead ends: 381073 [2021-11-07 15:57:24,382 INFO L226 Difference]: Without dead ends: 253839 [2021-11-07 15:57:24,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:57:24,583 INFO L933 BasicCegarLoop]: 17835 mSDtfsCounter, 17702 mSDsluCounter, 17727 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 804.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17702 SdHoareTripleChecker+Valid, 35562 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.06ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1065.12ms IncrementalHoareTripleChecker+Time [2021-11-07 15:57:24,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17702 Valid, 35562 Invalid, 208 Unknown, 0 Unchecked, 38.06ms Time], IncrementalHoareTripleChecker [48 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1065.12ms Time] [2021-11-07 15:57:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253839 states.