./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.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 fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 04:22:58,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 04:22:58,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 04:22:58,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 04:22:58,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 04:22:58,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 04:22:58,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 04:22:58,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 04:22:58,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 04:22:58,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 04:22:58,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 04:22:58,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 04:22:58,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 04:22:58,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 04:22:58,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 04:22:58,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 04:22:58,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 04:22:58,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 04:22:58,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 04:22:58,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 04:22:58,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 04:22:58,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 04:22:58,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 04:22:58,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 04:22:58,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 04:22:58,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 04:22:58,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 04:22:58,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 04:22:58,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 04:22:58,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 04:22:58,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 04:22:58,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 04:22:58,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 04:22:58,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 04:22:58,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 04:22:58,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 04:22:58,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 04:22:58,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 04:22:58,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 04:22:58,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 04:22:58,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 04:22:58,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 04:22:58,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 04:22:58,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 04:22:58,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 04:22:58,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 04:22:58,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 04:22:58,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 04:22:58,669 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 04:22:58,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 04:22:58,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 04:22:58,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 04:22:58,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 04:22:58,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 04:22:58,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 04:22:58,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 04:22:58,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 04:22:58,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 04:22:58,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 04:22:58,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 04:22:58,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 04:22:58,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 04:22:58,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 04:22:58,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 04:22:58,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 04:22:58,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 04:22:58,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 [2021-11-04 04:22:58,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 04:22:58,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 04:22:58,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 04:22:58,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 04:22:58,903 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 04:22:58,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-04 04:22:58,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aeea763e/3118acbcc2004ea8b97035df372566ed/FLAG22a479604 [2021-11-04 04:22:59,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 04:22:59,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-04 04:22:59,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aeea763e/3118acbcc2004ea8b97035df372566ed/FLAG22a479604 [2021-11-04 04:22:59,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aeea763e/3118acbcc2004ea8b97035df372566ed [2021-11-04 04:22:59,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 04:22:59,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 04:22:59,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 04:22:59,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 04:23:00,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 04:23:00,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 04:22:59" (1/1) ... [2021-11-04 04:23:00,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e42b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:00, skipping insertion in model container [2021-11-04 04:23:00,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 04:22:59" (1/1) ... [2021-11-04 04:23:00,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 04:23:00,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 04:23:01,309 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-11-04 04:23:02,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 04:23:02,828 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 04:23:02,971 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-11-04 04:23:03,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 04:23:03,368 INFO L208 MainTranslator]: Completed translation [2021-11-04 04:23:03,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03 WrapperNode [2021-11-04 04:23:03,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 04:23:03,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 04:23:03,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 04:23:03,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 04:23:03,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:03,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:05,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 04:23:05,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 04:23:05,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 04:23:05,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 04:23:05,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:05,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:05,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:05,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:07,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:07,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:07,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:07,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 04:23:07,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 04:23:07,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 04:23:07,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 04:23:07,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (1/1) ... [2021-11-04 04:23:07,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 04:23:07,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 04:23:07,817 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) [2021-11-04 04:23:07,836 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 [2021-11-04 04:23:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 04:23:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-04 04:23:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 04:23:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 04:23:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-04 04:23:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-04 04:23:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 04:23:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 04:23:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 04:23:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-04 04:23:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-04 04:23:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-04 04:23:44,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 04:23:44,148 INFO L299 CfgBuilder]: Removed 14276 assume(true) statements. [2021-11-04 04:23:44,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 04:23:44 BoogieIcfgContainer [2021-11-04 04:23:44,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 04:23:44,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 04:23:44,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 04:23:44,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 04:23:44,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 04:22:59" (1/3) ... [2021-11-04 04:23:44,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b6e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 04:23:44, skipping insertion in model container [2021-11-04 04:23:44,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 04:23:03" (2/3) ... [2021-11-04 04:23:44,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b6e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 04:23:44, skipping insertion in model container [2021-11-04 04:23:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 04:23:44" (3/3) ... [2021-11-04 04:23:44,166 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-04 04:23:44,169 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 04:23:44,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-04 04:23:44,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 04:23:44,236 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 [2021-11-04 04:23:44,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-04 04:23:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 15838 states, 15632 states have (on average 1.4521494370522006) internal successors, (22700), 15635 states have internal predecessors, (22700), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2021-11-04 04:23:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-04 04:23:44,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 04:23:44,405 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] [2021-11-04 04:23:44,406 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 04:23:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 04:23:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash -113770352, now seen corresponding path program 1 times [2021-11-04 04:23:44,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 04:23:44,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829672183] [2021-11-04 04:23:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 04:23:44,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 04:23:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 04:23:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 04:23:45,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 04:23:45,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829672183] [2021-11-04 04:23:45,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829672183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 04:23:45,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 04:23:45,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 04:23:45,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264975744] [2021-11-04 04:23:45,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 04:23:45,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 04:23:45,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 04:23:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 04:23:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:23:45,278 INFO L87 Difference]: Start difference. First operand has 15838 states, 15632 states have (on average 1.4521494370522006) internal successors, (22700), 15635 states have internal predecessors, (22700), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 04:23:47,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:23:54,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:23:57,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:00,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:03,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:05,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:08,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:10,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:14,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:19,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:26,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:31,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:35,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:24:47,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:25:57,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:00,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:02,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:04,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:07,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:10,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:13,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:15,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:29,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:32,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:35,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:26:38,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 04:27:37,692 INFO L93 Difference]: Finished difference Result 31676 states and 46403 transitions. [2021-11-04 04:27:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 04:27:37,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2021-11-04 04:27:37,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 04:27:37,772 INFO L225 Difference]: With dead ends: 31676 [2021-11-04 04:27:37,774 INFO L226 Difference]: Without dead ends: 15635 [2021-11-04 04:27:37,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:27:37,856 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 22452 mSDsCounter, 0 mSdLazyCounter, 44123 mSolverCounterSat, 8 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 216969.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 44157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 292.31ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44123 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229900.99ms IncrementalHoareTripleChecker+Time [2021-11-04 04:27:37,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1208 Invalid, 44157 Unknown, 0 Unchecked, 292.31ms Time], IncrementalHoareTripleChecker [8 Valid, 44123 Invalid, 26 Unknown, 0 Unchecked, 229900.99ms Time] [2021-11-04 04:27:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15635 states. [2021-11-04 04:27:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15635 to 15635. [2021-11-04 04:27:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15635 states, 15430 states have (on average 1.4184705119896306) internal successors, (21887), 15432 states have internal predecessors, (21887), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2021-11-04 04:27:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15635 states to 15635 states and 22287 transitions. [2021-11-04 04:27:38,323 INFO L78 Accepts]: Start accepts. Automaton has 15635 states and 22287 transitions. Word has length 76 [2021-11-04 04:27:38,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 04:27:38,324 INFO L470 AbstractCegarLoop]: Abstraction has 15635 states and 22287 transitions. [2021-11-04 04:27:38,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 04:27:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 15635 states and 22287 transitions. [2021-11-04 04:27:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-04 04:27:38,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 04:27:38,334 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] [2021-11-04 04:27:38,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 04:27:38,335 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 04:27:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 04:27:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2096727142, now seen corresponding path program 1 times [2021-11-04 04:27:38,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 04:27:38,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390398711] [2021-11-04 04:27:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 04:27:38,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 04:27:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 04:27:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 04:27:38,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 04:27:38,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390398711] [2021-11-04 04:27:38,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390398711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 04:27:38,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 04:27:38,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 04:27:38,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617719293] [2021-11-04 04:27:38,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 04:27:38,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 04:27:38,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 04:27:38,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 04:27:38,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:27:38,675 INFO L87 Difference]: Start difference. First operand 15635 states and 22287 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-04 04:27:40,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:48,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:51,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:54,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:57,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:27:59,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:02,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:05,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:09,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:14,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:20,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:25,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:29,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:28:40,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:29:52,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:29:54,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:29:57,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:29:59,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:02,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:05,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:08,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:10,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:24,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:28,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:30,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:30:33,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 04:31:40,140 INFO L93 Difference]: Finished difference Result 31147 states and 44427 transitions. [2021-11-04 04:31:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 04:31:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2021-11-04 04:31:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 04:31:40,201 INFO L225 Difference]: With dead ends: 31147 [2021-11-04 04:31:40,201 INFO L226 Difference]: Without dead ends: 15637 [2021-11-04 04:31:40,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:31:40,241 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 0 mSDsluCounter, 22040 mSDsCounter, 0 mSdLazyCounter, 43710 mSolverCounterSat, 2 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224122.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 43738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 247.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43710 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 239468.25ms IncrementalHoareTripleChecker+Time [2021-11-04 04:31:40,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 800 Invalid, 43738 Unknown, 0 Unchecked, 247.09ms Time], IncrementalHoareTripleChecker [2 Valid, 43710 Invalid, 26 Unknown, 0 Unchecked, 239468.25ms Time] [2021-11-04 04:31:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15637 states. [2021-11-04 04:31:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15637 to 15637. [2021-11-04 04:31:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15637 states, 15432 states have (on average 1.4184162778641782) internal successors, (21889), 15434 states have internal predecessors, (21889), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2021-11-04 04:31:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15637 states to 15637 states and 22289 transitions. [2021-11-04 04:31:40,606 INFO L78 Accepts]: Start accepts. Automaton has 15637 states and 22289 transitions. Word has length 81 [2021-11-04 04:31:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 04:31:40,608 INFO L470 AbstractCegarLoop]: Abstraction has 15637 states and 22289 transitions. [2021-11-04 04:31:40,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-04 04:31:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 15637 states and 22289 transitions. [2021-11-04 04:31:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 04:31:40,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 04:31:40,611 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] [2021-11-04 04:31:40,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 04:31:40,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 04:31:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 04:31:40,612 INFO L85 PathProgramCache]: Analyzing trace with hash -139284826, now seen corresponding path program 1 times [2021-11-04 04:31:40,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 04:31:40,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039700380] [2021-11-04 04:31:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 04:31:40,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 04:31:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 04:31:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 04:31:40,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 04:31:40,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039700380] [2021-11-04 04:31:40,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039700380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 04:31:40,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 04:31:40,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 04:31:40,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824174871] [2021-11-04 04:31:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 04:31:40,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 04:31:40,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 04:31:40,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 04:31:40,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:31:40,918 INFO L87 Difference]: Start difference. First operand 15637 states and 22289 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-04 04:31:42,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:48,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:51,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:54,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:56,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:31:59,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:01,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:03,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:07,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:10,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:16,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:20,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:24,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:32:33,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:02,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:06,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:08,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:11,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:13,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:16,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:19,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:22,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:37,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:41,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:44,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:34:47,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:36:35,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 04:36:35,669 INFO L93 Difference]: Finished difference Result 44823 states and 63876 transitions. [2021-11-04 04:36:35,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 04:36:35,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2021-11-04 04:36:35,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 04:36:35,768 INFO L225 Difference]: With dead ends: 44823 [2021-11-04 04:36:35,769 INFO L226 Difference]: Without dead ends: 29325 [2021-11-04 04:36:35,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 04:36:35,830 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 19275 mSDsluCounter, 22243 mSDsCounter, 0 mSdLazyCounter, 44503 mSolverCounterSat, 3 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 262025.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19435 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 44532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 264.81ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44503 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 291702.15ms IncrementalHoareTripleChecker+Time [2021-11-04 04:36:35,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19435 Valid, 997 Invalid, 44532 Unknown, 0 Unchecked, 264.81ms Time], IncrementalHoareTripleChecker [3 Valid, 44503 Invalid, 26 Unknown, 0 Unchecked, 291702.15ms Time] [2021-11-04 04:36:35,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29325 states. [2021-11-04 04:36:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29325 to 29230. [2021-11-04 04:36:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 28826 states have (on average 1.4176091028932214) internal successors, (40864), 28828 states have internal predecessors, (40864), 397 states have call successors, (397), 6 states have call predecessors, (397), 6 states have return successors, (397), 397 states have call predecessors, (397), 397 states have call successors, (397) [2021-11-04 04:36:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 41658 transitions. [2021-11-04 04:36:36,515 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 41658 transitions. Word has length 83 [2021-11-04 04:36:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 04:36:36,517 INFO L470 AbstractCegarLoop]: Abstraction has 29230 states and 41658 transitions. [2021-11-04 04:36:36,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-04 04:36:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 41658 transitions. [2021-11-04 04:36:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 04:36:36,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 04:36:36,521 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] [2021-11-04 04:36:36,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 04:36:36,525 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 04:36:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 04:36:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1896003818, now seen corresponding path program 1 times [2021-11-04 04:36:36,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 04:36:36,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517481264] [2021-11-04 04:36:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 04:36:36,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 04:36:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 04:36:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 04:36:36,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 04:36:36,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517481264] [2021-11-04 04:36:36,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517481264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 04:36:36,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 04:36:36,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 04:36:36,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892088960] [2021-11-04 04:36:36,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 04:36:36,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 04:36:36,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 04:36:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 04:36:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 04:36:36,913 INFO L87 Difference]: Start difference. First operand 29230 states and 41658 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-04 04:36:38,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:36:49,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:36:53,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 04:36:57,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15