./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.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 11d3d0800a0e0d53b4d0190c9a443eccbd843952940cf36579a7110b5d32d86b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 03:09:18,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:09:18,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:09:18,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:09:18,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:09:18,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:09:18,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:09:18,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:09:18,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:09:18,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:09:18,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:09:18,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:09:18,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:09:18,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:09:18,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:09:18,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:09:18,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:09:18,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:09:18,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:09:18,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:09:18,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:09:18,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:09:18,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:09:18,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:09:18,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:09:18,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:09:18,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:09:18,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:09:18,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:09:18,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:09:18,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:09:18,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:09:18,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:09:18,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:09:18,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:09:18,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:09:18,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:09:18,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:09:18,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:09:18,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:09:18,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:09:18,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 03:09:18,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:09:18,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:09:18,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:09:18,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:09:18,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:09:18,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:09:18,412 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 03:09:18,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:09:18,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:09:18,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:09:18,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:09:18,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:09:18,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:09:18,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 03:09:18,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:09:18,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:09:18,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11d3d0800a0e0d53b4d0190c9a443eccbd843952940cf36579a7110b5d32d86b [2021-11-23 03:09:18,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:09:18,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:09:18,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:09:18,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:09:18,708 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:09:18,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 03:09:18,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdef8f3db/309ffb3846a349e49b2ebd4361f878ea/FLAGf433a68bb [2021-11-23 03:09:19,462 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:09:19,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 03:09:19,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdef8f3db/309ffb3846a349e49b2ebd4361f878ea/FLAGf433a68bb [2021-11-23 03:09:19,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdef8f3db/309ffb3846a349e49b2ebd4361f878ea [2021-11-23 03:09:19,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:09:19,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:09:19,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:09:19,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:09:19,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:09:19,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:19" (1/1) ... [2021-11-23 03:09:19,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b3c4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:19, skipping insertion in model container [2021-11-23 03:09:19,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:19" (1/1) ... [2021-11-23 03:09:19,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:09:19,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:09:21,693 WARN L230 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-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323389,323402] [2021-11-23 03:09:21,697 WARN L230 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-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323534,323547] [2021-11-23 03:09:21,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:09:21,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:09:22,051 WARN L230 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-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323389,323402] [2021-11-23 03:09:22,052 WARN L230 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-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323534,323547] [2021-11-23 03:09:22,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:09:22,158 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:09:22,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22 WrapperNode [2021-11-23 03:09:22,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:09:22,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:09:22,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:09:22,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:09:22,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:22,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:30,403 INFO L137 Inliner]: procedures = 379, calls = 2098, calls flagged for inlining = 1005, calls inlined = 40581, statements flattened = 344795 [2021-11-23 03:09:30,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:09:30,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:09:30,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:09:30,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:09:30,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:30,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:32,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:32,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:35,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:35,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:36,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:38,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:09:38,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:09:38,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:09:38,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:09:38,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (1/1) ... [2021-11-23 03:09:38,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:09:38,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 03:09:38,173 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) [2021-11-23 03:09:38,175 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 [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:09:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:09:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:09:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:09:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:09:38,839 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:09:38,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:12:28,230 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_10 } true;main_#res#1 := 0; [2021-11-23 03:12:28,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset; [2021-11-23 03:12:28,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L9510: #t~ret995#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-23 03:12:28,234 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:12:28,235 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:12:28,407 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:12:28,408 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:12:28,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:28 BoogieIcfgContainer [2021-11-23 03:12:28,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:12:28,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:12:28,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:12:28,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:12:28,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:09:19" (1/3) ... [2021-11-23 03:12:28,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e818d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:28, skipping insertion in model container [2021-11-23 03:12:28,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:22" (2/3) ... [2021-11-23 03:12:28,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e818d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:28, skipping insertion in model container [2021-11-23 03:12:28,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:28" (3/3) ... [2021-11-23 03:12:28,471 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-23 03:12:28,475 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:12:28,475 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-23 03:12:28,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:12:28,778 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 [2021-11-23 03:12:28,781 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-23 03:12:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 74257 states, 74237 states have (on average 1.3096703799991918) internal successors, (97226), 74256 states have internal predecessors, (97226), 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) [2021-11-23 03:12:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 03:12:29,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:12:29,676 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] [2021-11-23 03:12:29,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-23 03:12:29,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:12:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash 254037914, now seen corresponding path program 1 times [2021-11-23 03:12:29,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:12:29,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777383613] [2021-11-23 03:12:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:29,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:12:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:12:30,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:12:30,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777383613] [2021-11-23 03:12:30,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777383613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:12:30,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:12:30,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:12:30,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517915291] [2021-11-23 03:12:30,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:12:30,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:12:30,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:12:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:12:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:12:31,010 INFO L87 Difference]: Start difference. First operand has 74257 states, 74237 states have (on average 1.3096703799991918) internal successors, (97226), 74256 states have internal predecessors, (97226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2021-11-23 03:12:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:12:34,757 INFO L93 Difference]: Finished difference Result 178289 states and 233450 transitions. [2021-11-23 03:12:34,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:12:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2021-11-23 03:12:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:12:35,242 INFO L225 Difference]: With dead ends: 178289 [2021-11-23 03:12:35,242 INFO L226 Difference]: Without dead ends: 103765 [2021-11-23 03:12:35,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:12:35,490 INFO L933 BasicCegarLoop]: 97196 mSDtfsCounter, 38997 mSDsluCounter, 97130 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38997 SdHoareTripleChecker+Valid, 194326 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:12:35,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38997 Valid, 194326 Invalid, 11 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:12:35,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103765 states. [2021-11-23 03:12:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103765 to 103749. [2021-11-23 03:12:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103749 states, 103729 states have (on average 1.3084383345062616) internal successors, (135723), 103748 states have internal predecessors, (135723), 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) [2021-11-23 03:12:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103749 states to 103749 states and 135723 transitions. [2021-11-23 03:12:39,264 INFO L78 Accepts]: Start accepts. Automaton has 103749 states and 135723 transitions. Word has length 110 [2021-11-23 03:12:39,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:12:39,266 INFO L470 AbstractCegarLoop]: Abstraction has 103749 states and 135723 transitions. [2021-11-23 03:12:39,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2021-11-23 03:12:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 103749 states and 135723 transitions. [2021-11-23 03:12:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 03:12:39,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:12:39,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:12:39,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:12:39,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-23 03:12:39,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:12:39,275 INFO L85 PathProgramCache]: Analyzing trace with hash 358854452, now seen corresponding path program 1 times [2021-11-23 03:12:39,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:12:39,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835317840] [2021-11-23 03:12:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:39,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:12:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:12:39,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:12:39,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835317840] [2021-11-23 03:12:39,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835317840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:12:39,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:12:39,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:12:39,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651489447] [2021-11-23 03:12:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:12:39,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:12:39,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:12:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:12:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:12:39,635 INFO L87 Difference]: Start difference. First operand 103749 states and 135723 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:12:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:12:42,692 INFO L93 Difference]: Finished difference Result 207467 states and 271413 transitions. [2021-11-23 03:12:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:12:42,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-23 03:12:42,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:12:43,042 INFO L225 Difference]: With dead ends: 207467 [2021-11-23 03:12:43,042 INFO L226 Difference]: Without dead ends: 103749 [2021-11-23 03:12:43,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:12:43,374 INFO L933 BasicCegarLoop]: 96833 mSDtfsCounter, 96743 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96743 SdHoareTripleChecker+Valid, 96833 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:12:43,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96743 Valid, 96833 Invalid, 39 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:12:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103749 states. [2021-11-23 03:12:46,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103749 to 103749. [2021-11-23 03:12:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103749 states, 103729 states have (on average 1.3081684003509144) internal successors, (135695), 103748 states have internal predecessors, (135695), 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) [2021-11-23 03:12:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103749 states to 103749 states and 135695 transitions. [2021-11-23 03:12:46,601 INFO L78 Accepts]: Start accepts. Automaton has 103749 states and 135695 transitions. Word has length 114 [2021-11-23 03:12:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:12:46,602 INFO L470 AbstractCegarLoop]: Abstraction has 103749 states and 135695 transitions. [2021-11-23 03:12:46,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:12:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 103749 states and 135695 transitions. [2021-11-23 03:12:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 03:12:46,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:12:46,608 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] [2021-11-23 03:12:46,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:12:46,608 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-23 03:12:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:12:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1760408575, now seen corresponding path program 1 times [2021-11-23 03:12:46,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:12:46,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48797235] [2021-11-23 03:12:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:46,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:12:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:12:46,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:12:46,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48797235] [2021-11-23 03:12:46,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48797235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:12:46,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:12:46,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:12:46,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738260562] [2021-11-23 03:12:46,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:12:46,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:12:46,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:12:46,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:12:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:12:46,925 INFO L87 Difference]: Start difference. First operand 103749 states and 135695 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-23 03:12:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:12:50,572 INFO L93 Difference]: Finished difference Result 207467 states and 271357 transitions. [2021-11-23 03:12:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:12:50,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2021-11-23 03:12:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:12:50,851 INFO L225 Difference]: With dead ends: 207467 [2021-11-23 03:12:50,851 INFO L226 Difference]: Without dead ends: 103749 [2021-11-23 03:12:51,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:12:51,098 INFO L933 BasicCegarLoop]: 96793 mSDtfsCounter, 193554 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193554 SdHoareTripleChecker+Valid, 96793 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:12:51,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193554 Valid, 96793 Invalid, 60 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:12:51,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103749 states. [2021-11-23 03:12:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103749 to 103749. [2021-11-23 03:12:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103749 states, 103729 states have (on average 1.3078984661955673) internal successors, (135667), 103748 states have internal predecessors, (135667), 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) [2021-11-23 03:12:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103749 states to 103749 states and 135667 transitions. [2021-11-23 03:12:54,699 INFO L78 Accepts]: Start accepts. Automaton has 103749 states and 135667 transitions. Word has length 115 [2021-11-23 03:12:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:12:54,700 INFO L470 AbstractCegarLoop]: Abstraction has 103749 states and 135667 transitions. [2021-11-23 03:12:54,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-23 03:12:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 103749 states and 135667 transitions. [2021-11-23 03:12:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 03:12:54,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:12:54,705 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] [2021-11-23 03:12:54,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:12:54,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-23 03:12:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:12:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1262063279, now seen corresponding path program 1 times [2021-11-23 03:12:54,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:12:54,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973537929] [2021-11-23 03:12:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:54,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:12:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:12:54,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:12:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973537929] [2021-11-23 03:12:54,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973537929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:12:54,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:12:54,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:12:54,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755856819] [2021-11-23 03:12:54,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:12:54,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:12:54,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:12:54,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:12:54,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:12:54,988 INFO L87 Difference]: Start difference. First operand 103749 states and 135667 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-23 03:12:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:12:58,867 INFO L93 Difference]: Finished difference Result 207467 states and 271301 transitions. [2021-11-23 03:12:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:12:58,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2021-11-23 03:12:58,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:12:59,288 INFO L225 Difference]: With dead ends: 207467 [2021-11-23 03:12:59,288 INFO L226 Difference]: Without dead ends: 103749 [2021-11-23 03:12:59,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:12:59,459 INFO L933 BasicCegarLoop]: 96773 mSDtfsCounter, 193513 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193513 SdHoareTripleChecker+Valid, 96773 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:12:59,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193513 Valid, 96773 Invalid, 60 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:12:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103749 states.