./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-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.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 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 18:40:52,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:40:52,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:40:52,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:40:52,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:40:52,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:40:52,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:40:52,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:40:52,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:40:52,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:40:52,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:40:52,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:40:52,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:40:52,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:40:52,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:40:52,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:40:52,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:40:52,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:40:52,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:40:52,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:40:52,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:40:52,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:40:52,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:40:52,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:40:52,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:40:52,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:40:52,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:40:52,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:40:52,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:40:52,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:40:52,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:40:52,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:40:52,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:40:52,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:40:52,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:40:52,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:40:52,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:40:52,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:40:52,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:40:52,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:40:52,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:40:52,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:40:52,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:40:52,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:40:52,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:40:52,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:40:52,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:40:52,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:40:52,856 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:40:52,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:40:52,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:40:52,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:40:52,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:40:52,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:40:52,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:40:52,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:40:52,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:40:52,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:40:52,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:40:52,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:40:52,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:40:52,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:40:52,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:40:52,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:40:52,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:40:52,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db [2021-11-05 18:40:53,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:40:53,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:40:53,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:40:53,186 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:40:53,196 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:40:53,197 INFO L432 ainManager$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-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-05 18:40:53,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af8708/61324f253b8d4cd6a8959d49d08df768/FLAGb896dd6c5 [2021-11-05 18:40:53,989 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:40:53,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-05 18:40:54,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af8708/61324f253b8d4cd6a8959d49d08df768/FLAGb896dd6c5 [2021-11-05 18:40:54,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4af8708/61324f253b8d4cd6a8959d49d08df768 [2021-11-05 18:40:54,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:40:54,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:40:54,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:40:54,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:40:54,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:40:54,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:40:54" (1/1) ... [2021-11-05 18:40:54,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463a28b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:40:54, skipping insertion in model container [2021-11-05 18:40:54,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:40:54" (1/1) ... [2021-11-05 18:40:54,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:40:54,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:40:59,183 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-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-05 18:40:59,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:40:59,556 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:40:59,894 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-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-05 18:40:59,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:41:00,352 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:41:00,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00 WrapperNode [2021-11-05 18:41:00,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:41:00,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:41:00,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:41:00,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:41:00,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:00,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:02,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:41:02,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:41:02,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:41:02,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:41:02,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:02,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:03,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:03,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:04,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:04,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:04,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:05,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:41:05,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:41:05,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:41:05,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:41:05,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (1/1) ... [2021-11-05 18:41:05,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:41:05,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:41:05,689 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) [2021-11-05 18:41:05,694 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 [2021-11-05 18:41:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:41:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 18:41:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:41:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:41:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_scan_stm [2021-11-05 18:41:05,716 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_scan_stm [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:41:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_plt_init [2021-11-05 18:41:05,716 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_plt_init [2021-11-05 18:41:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:46:20,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:46:20,836 INFO L299 CfgBuilder]: Removed 19649 assume(true) statements. [2021-11-05 18:46:20,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:46:20 BoogieIcfgContainer [2021-11-05 18:46:20,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:46:20,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:46:20,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:46:20,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:46:20,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:40:54" (1/3) ... [2021-11-05 18:46:20,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33844f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:46:20, skipping insertion in model container [2021-11-05 18:46:20,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:41:00" (2/3) ... [2021-11-05 18:46:20,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33844f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:46:20, skipping insertion in model container [2021-11-05 18:46:20,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:46:20" (3/3) ... [2021-11-05 18:46:20,854 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-05 18:46:20,857 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:46:20,858 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-05 18:46:20,931 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:46:20,936 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 [2021-11-05 18:46:20,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-05 18:46:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-05 18:46:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-05 18:46:21,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:46:21,182 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:46:21,183 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:46:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:46:21,187 INFO L85 PathProgramCache]: Analyzing trace with hash -554712371, now seen corresponding path program 1 times [2021-11-05 18:46:21,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:46:21,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135557401] [2021-11-05 18:46:21,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:46:21,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:46:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-05 18:46:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-05 18:46:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-05 18:46:22,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:46:22,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135557401] [2021-11-05 18:46:22,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135557401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:46:22,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:46:22,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:46:22,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849723139] [2021-11-05 18:46:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:46:22,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:46:22,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:46:22,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:46:22,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:46:22,709 INFO L87 Difference]: Start difference. First operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-05 18:46:25,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:46:26,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:46:34,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:46:36,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:46:44,196 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 [] [2021-11-05 18:46:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:46:52,692 INFO L93 Difference]: Finished difference Result 35573 states and 49845 transitions. [2021-11-05 18:46:52,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:46:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 186 [2021-11-05 18:46:52,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:46:52,768 INFO L225 Difference]: With dead ends: 35573 [2021-11-05 18:46:52,768 INFO L226 Difference]: Without dead ends: 17726 [2021-11-05 18:46:52,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:46:52,807 INFO L933 BasicCegarLoop]: 23915 mSDtfsCounter, 100 mSDsluCounter, 18995 mSDsCounter, 0 mSdLazyCounter, 4919 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26751.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 42910 SdHoareTripleChecker+Invalid, 4943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.80ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4919 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29100.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:46:52,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 42910 Invalid, 4943 Unknown, 0 Unchecked, 106.80ms Time], IncrementalHoareTripleChecker [21 Valid, 4919 Invalid, 3 Unknown, 0 Unchecked, 29100.00ms Time] [2021-11-05 18:46:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-11-05 18:46:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17679. [2021-11-05 18:46:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17679 states, 17653 states have (on average 1.345097150625956) internal successors, (23745), 17662 states have internal predecessors, (23745), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-05 18:46:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17679 states to 17679 states and 23779 transitions. [2021-11-05 18:46:53,262 INFO L78 Accepts]: Start accepts. Automaton has 17679 states and 23779 transitions. Word has length 186 [2021-11-05 18:46:53,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:46:53,262 INFO L470 AbstractCegarLoop]: Abstraction has 17679 states and 23779 transitions. [2021-11-05 18:46:53,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-05 18:46:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 17679 states and 23779 transitions. [2021-11-05 18:46:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 18:46:53,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:46:53,293 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:46:53,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:46:53,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:46:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:46:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash 654632037, now seen corresponding path program 1 times [2021-11-05 18:46:53,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:46:53,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877459488] [2021-11-05 18:46:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:46:53,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:46:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-05 18:46:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-05 18:46:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:46:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-05 18:46:54,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:46:54,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877459488] [2021-11-05 18:46:54,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877459488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:46:54,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:46:54,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 18:46:54,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866514200] [2021-11-05 18:46:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:46:54,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 18:46:54,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:46:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 18:46:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 18:46:54,436 INFO L87 Difference]: Start difference. First operand 17679 states and 23779 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-05 18:46:56,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:01,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:05,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:09,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:11,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:13,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:15,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:18,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:19,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:28,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:30,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:37,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:47:45,736 INFO L93 Difference]: Finished difference Result 41654 states and 56055 transitions. [2021-11-05 18:47:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 18:47:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 188 [2021-11-05 18:47:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:47:45,809 INFO L225 Difference]: With dead ends: 41654 [2021-11-05 18:47:45,809 INFO L226 Difference]: Without dead ends: 24089 [2021-11-05 18:47:45,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:47:45,846 INFO L933 BasicCegarLoop]: 27507 mSDtfsCounter, 8710 mSDsluCounter, 44563 mSDsCounter, 0 mSdLazyCounter, 6536 mSolverCounterSat, 55 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46769.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8715 SdHoareTripleChecker+Valid, 72070 SdHoareTripleChecker+Invalid, 6601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 164.81ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 6536 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50305.87ms IncrementalHoareTripleChecker+Time [2021-11-05 18:47:45,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8715 Valid, 72070 Invalid, 6601 Unknown, 0 Unchecked, 164.81ms Time], IncrementalHoareTripleChecker [55 Valid, 6536 Invalid, 10 Unknown, 0 Unchecked, 50305.87ms Time] [2021-11-05 18:47:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24089 states. [2021-11-05 18:47:46,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24089 to 24024. [2021-11-05 18:47:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 23981 states have (on average 1.344814644927234) internal successors, (32250), 23994 states have internal predecessors, (32250), 27 states have call successors, (27), 6 states have call predecessors, (27), 10 states have return successors, (49), 25 states have call predecessors, (49), 27 states have call successors, (49) [2021-11-05 18:47:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 32326 transitions. [2021-11-05 18:47:46,287 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 32326 transitions. Word has length 188 [2021-11-05 18:47:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:47:46,289 INFO L470 AbstractCegarLoop]: Abstraction has 24024 states and 32326 transitions. [2021-11-05 18:47:46,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-05 18:47:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 32326 transitions. [2021-11-05 18:47:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-05 18:47:46,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:47:46,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:47:46,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:47:46,296 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:47:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:47:46,297 INFO L85 PathProgramCache]: Analyzing trace with hash 879763896, now seen corresponding path program 1 times [2021-11-05 18:47:46,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:47:46,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997560410] [2021-11-05 18:47:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:47:46,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:47:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:47:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:47:47,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:47:47,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997560410] [2021-11-05 18:47:47,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997560410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:47:47,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:47:47,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:47:47,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444889000] [2021-11-05 18:47:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:47:47,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:47:47,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:47:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:47:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:47,268 INFO L87 Difference]: Start difference. First operand 24024 states and 32326 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-05 18:47:49,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:47:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:47:50,300 INFO L93 Difference]: Finished difference Result 70408 states and 95277 transitions. [2021-11-05 18:47:50,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:47:50,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 187 [2021-11-05 18:47:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:47:50,582 INFO L225 Difference]: With dead ends: 70408 [2021-11-05 18:47:50,582 INFO L226 Difference]: Without dead ends: 46498 [2021-11-05 18:47:50,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:50,627 INFO L933 BasicCegarLoop]: 23793 mSDtfsCounter, 22861 mSDsluCounter, 23758 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2359.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22861 SdHoareTripleChecker+Valid, 47551 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.03ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2513.14ms IncrementalHoareTripleChecker+Time [2021-11-05 18:47:50,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22861 Valid, 47551 Invalid, 15 Unknown, 0 Unchecked, 31.03ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2513.14ms Time] [2021-11-05 18:47:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2021-11-05 18:47:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2021-11-05 18:47:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 46414 states have (on average 1.3556685482828457) internal successors, (62922), 46435 states have internal predecessors, (62922), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-05 18:47:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 63074 transitions. [2021-11-05 18:47:51,621 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 63074 transitions. Word has length 187 [2021-11-05 18:47:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:47:51,622 INFO L470 AbstractCegarLoop]: Abstraction has 46494 states and 63074 transitions. [2021-11-05 18:47:51,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-05 18:47:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 63074 transitions. [2021-11-05 18:47:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-05 18:47:51,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:47:51,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:47:51,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:47:51,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:47:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:47:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1698691325, now seen corresponding path program 1 times [2021-11-05 18:47:51,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:47:51,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729543168] [2021-11-05 18:47:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:47:51,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:47:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:47:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:47:52,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:47:52,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729543168] [2021-11-05 18:47:52,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729543168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:47:52,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:47:52,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:47:52,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820339332] [2021-11-05 18:47:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:47:52,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:47:52,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:47:52,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:47:52,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:52,561 INFO L87 Difference]: Start difference. First operand 46494 states and 63074 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-05 18:47:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:47:53,100 INFO L93 Difference]: Finished difference Result 46494 states and 63074 transitions. [2021-11-05 18:47:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:47:53,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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 195 [2021-11-05 18:47:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:47:53,203 INFO L225 Difference]: With dead ends: 46494 [2021-11-05 18:47:53,203 INFO L226 Difference]: Without dead ends: 46492 [2021-11-05 18:47:53,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:53,231 INFO L933 BasicCegarLoop]: 23776 mSDtfsCounter, 23584 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23584 SdHoareTripleChecker+Valid, 23776 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.53ms IncrementalHoareTripleChecker+Time [2021-11-05 18:47:53,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23584 Valid, 23776 Invalid, 1 Unknown, 0 Unchecked, 19.37ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.53ms Time] [2021-11-05 18:47:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46492 states. [2021-11-05 18:47:54,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46492 to 46492. [2021-11-05 18:47:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46492 states, 46413 states have (on average 1.3556546657186563) internal successors, (62920), 46433 states have internal predecessors, (62920), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-05 18:47:54,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46492 states to 46492 states and 63072 transitions. [2021-11-05 18:47:54,246 INFO L78 Accepts]: Start accepts. Automaton has 46492 states and 63072 transitions. Word has length 195 [2021-11-05 18:47:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:47:54,247 INFO L470 AbstractCegarLoop]: Abstraction has 46492 states and 63072 transitions. [2021-11-05 18:47:54,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-05 18:47:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 46492 states and 63072 transitions. [2021-11-05 18:47:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-05 18:47:54,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:47:54,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:47:54,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:47:54,252 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:47:54,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:47:54,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1119766122, now seen corresponding path program 1 times [2021-11-05 18:47:54,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:47:54,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912269546] [2021-11-05 18:47:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:47:54,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:47:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:47:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:47:55,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:47:55,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912269546] [2021-11-05 18:47:55,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912269546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:47:55,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:47:55,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:47:55,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912415678] [2021-11-05 18:47:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:47:55,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:47:55,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:47:55,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:47:55,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:55,265 INFO L87 Difference]: Start difference. First operand 46492 states and 63072 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-05 18:47:55,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:47:55,758 INFO L93 Difference]: Finished difference Result 46492 states and 63072 transitions. [2021-11-05 18:47:55,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:47:55,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 196 [2021-11-05 18:47:55,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:47:55,858 INFO L225 Difference]: With dead ends: 46492 [2021-11-05 18:47:55,859 INFO L226 Difference]: Without dead ends: 46490 [2021-11-05 18:47:55,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:55,884 INFO L933 BasicCegarLoop]: 23774 mSDtfsCounter, 23581 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23581 SdHoareTripleChecker+Valid, 23774 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.78ms IncrementalHoareTripleChecker+Time [2021-11-05 18:47:55,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23581 Valid, 23774 Invalid, 1 Unknown, 0 Unchecked, 19.12ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.78ms Time] [2021-11-05 18:47:55,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46490 states. [2021-11-05 18:47:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46490 to 46490. [2021-11-05 18:47:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46490 states, 46412 states have (on average 1.3556407825562355) internal successors, (62918), 46431 states have internal predecessors, (62918), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-05 18:47:56,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46490 states to 46490 states and 63070 transitions. [2021-11-05 18:47:56,870 INFO L78 Accepts]: Start accepts. Automaton has 46490 states and 63070 transitions. Word has length 196 [2021-11-05 18:47:56,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:47:56,871 INFO L470 AbstractCegarLoop]: Abstraction has 46490 states and 63070 transitions. [2021-11-05 18:47:56,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-05 18:47:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 46490 states and 63070 transitions. [2021-11-05 18:47:56,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-05 18:47:56,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:47:56,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:47:56,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:47:56,876 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 18:47:56,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:47:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -352954003, now seen corresponding path program 1 times [2021-11-05 18:47:56,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:47:56,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888030695] [2021-11-05 18:47:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:47:56,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:47:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:47:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:47:57,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:47:57,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888030695] [2021-11-05 18:47:57,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888030695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:47:57,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:47:57,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:47:57,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137621792] [2021-11-05 18:47:57,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:47:57,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:47:57,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:47:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:47:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:47:57,864 INFO L87 Difference]: Start difference. First operand 46490 states and 63070 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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)