./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.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 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:35:49,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:35:49,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:35:49,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:35:49,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:35:49,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:35:49,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:35:49,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:35:49,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:35:49,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:35:49,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:35:49,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:35:49,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:35:49,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:35:49,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:35:49,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:35:49,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:35:49,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:35:49,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:35:49,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:35:49,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:35:49,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:35:49,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:35:49,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:35:49,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:35:49,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:35:49,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:35:49,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:35:49,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:35:49,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:35:49,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:35:49,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:35:49,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:35:49,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:35:49,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:35:49,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:35:49,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:35:49,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:35:49,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:35:49,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:35:49,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:35:49,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:35:49,749 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:35:49,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:35:49,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:35:49,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:35:49,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:35:49,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:35:49,751 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:35:49,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:35:49,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:35:49,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:35:49,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:35:49,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:35:49,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:35:49,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:35:49,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:35:49,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:35:49,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:35:49,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:35:49,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:35:49,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:35:49,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:35:49,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:35:49,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:35:49,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-11-07 13:35:49,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:35:49,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:35:49,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:35:49,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:35:49,930 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:35:49,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-07 13:35:49,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae127e23a/b02c905ecd124141b935f80e32eeec52/FLAG5d31ec49f [2021-11-07 13:35:50,594 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:35:50,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-07 13:35:50,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae127e23a/b02c905ecd124141b935f80e32eeec52/FLAG5d31ec49f [2021-11-07 13:35:50,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae127e23a/b02c905ecd124141b935f80e32eeec52 [2021-11-07 13:35:50,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:35:50,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:35:50,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:35:50,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:35:50,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:35:50,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:50" (1/1) ... [2021-11-07 13:35:50,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2dc8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:50, skipping insertion in model container [2021-11-07 13:35:50,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:50" (1/1) ... [2021-11-07 13:35:50,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:35:50,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:35:51,200 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-07 13:35:51,201 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-07 13:35:51,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-07 13:35:52,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:35:52,125 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:35:52,244 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-07 13:35:52,244 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-07 13:35:52,252 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-07 13:35:52,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:35:52,475 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:35:52,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52 WrapperNode [2021-11-07 13:35:52,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:35:52,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:35:52,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:35:52,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:35:52,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:52,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:55,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:35:55,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:35:55,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:35:55,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:35:55,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:55,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:55,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:55,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:56,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:57,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:57,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:57,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:35:57,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:35:57,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:35:57,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:35:57,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (1/1) ... [2021-11-07 13:35:57,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:35:57,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:35:57,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:35:57,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 13:35:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:35:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:35:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:35:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:35:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:35:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:35:57,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:37:06,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:37:06,663 INFO L299 CfgBuilder]: Removed 21438 assume(true) statements. [2021-11-07 13:37:06,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:06 BoogieIcfgContainer [2021-11-07 13:37:06,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:37:06,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:37:06,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:37:06,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:37:06,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:35:50" (1/3) ... [2021-11-07 13:37:06,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31da95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:06, skipping insertion in model container [2021-11-07 13:37:06,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:52" (2/3) ... [2021-11-07 13:37:06,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31da95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:06, skipping insertion in model container [2021-11-07 13:37:06,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:06" (3/3) ... [2021-11-07 13:37:06,682 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-07 13:37:06,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:37:06,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2021-11-07 13:37:06,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:37:06,767 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:37:06,767 INFO L340 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2021-11-07 13:37:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 14702 states, 14651 states have (on average 1.394307555798239) internal successors, (20428), 14701 states have internal predecessors, (20428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 13:37:07,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:07,177 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] [2021-11-07 13:37:07,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:07,189 INFO L85 PathProgramCache]: Analyzing trace with hash -605488511, now seen corresponding path program 1 times [2021-11-07 13:37:07,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:07,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043217014] [2021-11-07 13:37:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:07,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:07,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:07,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043217014] [2021-11-07 13:37:07,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043217014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:07,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:07,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:07,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34480762] [2021-11-07 13:37:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:07,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:07,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:07,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:07,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:07,708 INFO L87 Difference]: Start difference. First operand has 14702 states, 14651 states have (on average 1.394307555798239) internal successors, (20428), 14701 states have internal predecessors, (20428), 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 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:08,729 INFO L93 Difference]: Finished difference Result 45310 states and 63169 transitions. [2021-11-07 13:37:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:08,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-07 13:37:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:08,862 INFO L225 Difference]: With dead ends: 45310 [2021-11-07 13:37:08,863 INFO L226 Difference]: Without dead ends: 30412 [2021-11-07 13:37:08,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:08,907 INFO L933 BasicCegarLoop]: 26444 mSDtfsCounter, 19083 mSDsluCounter, 41062 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19083 SdHoareTripleChecker+Valid, 67506 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.88ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.30ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:08,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19083 Valid, 67506 Invalid, 75 Unknown, 0 Unchecked, 101.88ms Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 115.30ms Time] [2021-11-07 13:37:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30412 states. [2021-11-07 13:37:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30412 to 16758. [2021-11-07 13:37:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16758 states, 16708 states have (on average 1.385863059612162) internal successors, (23155), 16757 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16758 states to 16758 states and 23155 transitions. [2021-11-07 13:37:09,485 INFO L78 Accepts]: Start accepts. Automaton has 16758 states and 23155 transitions. Word has length 43 [2021-11-07 13:37:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:09,486 INFO L470 AbstractCegarLoop]: Abstraction has 16758 states and 23155 transitions. [2021-11-07 13:37:09,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:09,487 INFO L276 IsEmpty]: Start isEmpty. Operand 16758 states and 23155 transitions. [2021-11-07 13:37:09,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 13:37:09,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:09,494 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] [2021-11-07 13:37:09,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:37:09,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:09,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:09,495 INFO L85 PathProgramCache]: Analyzing trace with hash -407879037, now seen corresponding path program 1 times [2021-11-07 13:37:09,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:09,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244835463] [2021-11-07 13:37:09,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:09,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:09,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:09,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:09,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244835463] [2021-11-07 13:37:09,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244835463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:09,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:09,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:09,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925436243] [2021-11-07 13:37:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:09,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:09,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:09,633 INFO L87 Difference]: Start difference. First operand 16758 states and 23155 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:10,939 INFO L93 Difference]: Finished difference Result 55748 states and 77467 transitions. [2021-11-07 13:37:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:10,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-07 13:37:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:11,035 INFO L225 Difference]: With dead ends: 55748 [2021-11-07 13:37:11,037 INFO L226 Difference]: Without dead ends: 39008 [2021-11-07 13:37:11,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.59ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:11,076 INFO L933 BasicCegarLoop]: 23143 mSDtfsCounter, 21984 mSDsluCounter, 40115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21984 SdHoareTripleChecker+Valid, 63258 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.31ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.96ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:11,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21984 Valid, 63258 Invalid, 67 Unknown, 0 Unchecked, 66.31ms Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 83.96ms Time] [2021-11-07 13:37:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39008 states. [2021-11-07 13:37:11,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39008 to 30314. [2021-11-07 13:37:11,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30314 states, 30264 states have (on average 1.3876883425852498) internal successors, (41997), 30313 states have internal predecessors, (41997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30314 states to 30314 states and 41997 transitions. [2021-11-07 13:37:11,800 INFO L78 Accepts]: Start accepts. Automaton has 30314 states and 41997 transitions. Word has length 44 [2021-11-07 13:37:11,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:11,802 INFO L470 AbstractCegarLoop]: Abstraction has 30314 states and 41997 transitions. [2021-11-07 13:37:11,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:11,803 INFO L276 IsEmpty]: Start isEmpty. Operand 30314 states and 41997 transitions. [2021-11-07 13:37:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 13:37:11,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:11,810 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] [2021-11-07 13:37:11,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:37:11,811 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:11,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:11,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1423058640, now seen corresponding path program 1 times [2021-11-07 13:37:11,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:11,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905737883] [2021-11-07 13:37:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:11,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:11,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:11,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905737883] [2021-11-07 13:37:11,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905737883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:11,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:11,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:11,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697292122] [2021-11-07 13:37:11,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:11,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:11,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:11,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:11,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:11,935 INFO L87 Difference]: Start difference. First operand 30314 states and 41997 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:13,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:13,496 INFO L93 Difference]: Finished difference Result 101940 states and 142035 transitions. [2021-11-07 13:37:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:13,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 13:37:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:13,700 INFO L225 Difference]: With dead ends: 101940 [2021-11-07 13:37:13,700 INFO L226 Difference]: Without dead ends: 71644 [2021-11-07 13:37:13,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:13,772 INFO L933 BasicCegarLoop]: 23141 mSDtfsCounter, 21991 mSDsluCounter, 40115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21991 SdHoareTripleChecker+Valid, 63256 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.86ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.33ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:13,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21991 Valid, 63256 Invalid, 67 Unknown, 0 Unchecked, 55.86ms Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 80.33ms Time] [2021-11-07 13:37:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71644 states. [2021-11-07 13:37:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71644 to 54345. [2021-11-07 13:37:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54345 states, 54295 states have (on average 1.3895570494520675) internal successors, (75446), 54344 states have internal predecessors, (75446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54345 states to 54345 states and 75446 transitions. [2021-11-07 13:37:15,287 INFO L78 Accepts]: Start accepts. Automaton has 54345 states and 75446 transitions. Word has length 45 [2021-11-07 13:37:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:15,288 INFO L470 AbstractCegarLoop]: Abstraction has 54345 states and 75446 transitions. [2021-11-07 13:37:15,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 54345 states and 75446 transitions. [2021-11-07 13:37:15,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 13:37:15,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:15,293 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] [2021-11-07 13:37:15,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:37:15,294 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:15,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:15,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1947404238, now seen corresponding path program 1 times [2021-11-07 13:37:15,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:15,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156587918] [2021-11-07 13:37:15,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:15,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:15,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:15,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156587918] [2021-11-07 13:37:15,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156587918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:15,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:15,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:15,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727302876] [2021-11-07 13:37:15,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:15,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:15,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:15,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:15,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:15,386 INFO L87 Difference]: Start difference. First operand 54345 states and 75446 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:17,718 INFO L93 Difference]: Finished difference Result 185077 states and 258454 transitions. [2021-11-07 13:37:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:17,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-07 13:37:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:18,129 INFO L225 Difference]: With dead ends: 185077 [2021-11-07 13:37:18,130 INFO L226 Difference]: Without dead ends: 130750 [2021-11-07 13:37:18,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:18,226 INFO L933 BasicCegarLoop]: 23139 mSDtfsCounter, 21998 mSDsluCounter, 40115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21998 SdHoareTripleChecker+Valid, 63254 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.22ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.67ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:18,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21998 Valid, 63254 Invalid, 67 Unknown, 0 Unchecked, 45.22ms Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 68.67ms Time] [2021-11-07 13:37:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130750 states. [2021-11-07 13:37:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130750 to 96244. [2021-11-07 13:37:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96244 states, 96194 states have (on average 1.391687631245192) internal successors, (133872), 96243 states have internal predecessors, (133872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96244 states to 96244 states and 133872 transitions. [2021-11-07 13:37:21,017 INFO L78 Accepts]: Start accepts. Automaton has 96244 states and 133872 transitions. Word has length 46 [2021-11-07 13:37:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:21,017 INFO L470 AbstractCegarLoop]: Abstraction has 96244 states and 133872 transitions. [2021-11-07 13:37:21,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 96244 states and 133872 transitions. [2021-11-07 13:37:21,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 13:37:21,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:21,024 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:37:21,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:37:21,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 514931022, now seen corresponding path program 1 times [2021-11-07 13:37:21,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:21,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224290031] [2021-11-07 13:37:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:21,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 13:37:21,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:21,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224290031] [2021-11-07 13:37:21,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224290031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:21,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:21,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:37:21,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222487911] [2021-11-07 13:37:21,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:21,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:37:21,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:37:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:21,158 INFO L87 Difference]: Start difference. First operand 96244 states and 133872 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:25,482 INFO L93 Difference]: Finished difference Result 281264 states and 392286 transitions. [2021-11-07 13:37:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 13:37:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2021-11-07 13:37:25,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:25,885 INFO L225 Difference]: With dead ends: 281264 [2021-11-07 13:37:25,885 INFO L226 Difference]: Without dead ends: 185038 [2021-11-07 13:37:26,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.95ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 13:37:26,027 INFO L933 BasicCegarLoop]: 35886 mSDtfsCounter, 28105 mSDsluCounter, 88719 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28105 SdHoareTripleChecker+Valid, 124605 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.33ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.75ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:26,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28105 Valid, 124605 Invalid, 151 Unknown, 0 Unchecked, 78.33ms Time], IncrementalHoareTripleChecker [34 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 312.75ms Time] [2021-11-07 13:37:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185038 states. [2021-11-07 13:37:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185038 to 96284. [2021-11-07 13:37:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96284 states, 96234 states have (on average 1.3915248249059584) internal successors, (133912), 96283 states have internal predecessors, (133912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96284 states to 96284 states and 133912 transitions. [2021-11-07 13:37:29,294 INFO L78 Accepts]: Start accepts. Automaton has 96284 states and 133912 transitions. Word has length 50 [2021-11-07 13:37:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:29,294 INFO L470 AbstractCegarLoop]: Abstraction has 96284 states and 133912 transitions. [2021-11-07 13:37:29,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 96284 states and 133912 transitions. [2021-11-07 13:37:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 13:37:29,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:29,300 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:29,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:37:29,303 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:29,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1049898244, now seen corresponding path program 1 times [2021-11-07 13:37:29,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:29,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798784375] [2021-11-07 13:37:29,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:29,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:29,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:29,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798784375] [2021-11-07 13:37:29,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798784375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:29,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:29,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:29,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49194333] [2021-11-07 13:37:29,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:29,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:37:29,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:29,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:37:29,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:37:29,380 INFO L87 Difference]: Start difference. First operand 96284 states and 133912 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:32,915 INFO L93 Difference]: Finished difference Result 259808 states and 360224 transitions. [2021-11-07 13:37:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:37:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-07 13:37:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:33,269 INFO L225 Difference]: With dead ends: 259808 [2021-11-07 13:37:33,270 INFO L226 Difference]: Without dead ends: 163542 [2021-11-07 13:37:33,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:37:33,409 INFO L933 BasicCegarLoop]: 37068 mSDtfsCounter, 17541 mSDsluCounter, 19956 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17541 SdHoareTripleChecker+Valid, 57024 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.16ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.62ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:33,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17541 Valid, 57024 Invalid, 52 Unknown, 0 Unchecked, 35.16ms Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 88.62ms Time] [2021-11-07 13:37:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163542 states. [2021-11-07 13:37:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163542 to 158980. [2021-11-07 13:37:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158980 states, 158930 states have (on average 1.384634744856226) internal successors, (220060), 158979 states have internal predecessors, (220060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:37,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158980 states to 158980 states and 220060 transitions. [2021-11-07 13:37:37,653 INFO L78 Accepts]: Start accepts. Automaton has 158980 states and 220060 transitions. Word has length 64 [2021-11-07 13:37:37,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:37,654 INFO L470 AbstractCegarLoop]: Abstraction has 158980 states and 220060 transitions. [2021-11-07 13:37:37,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:37,654 INFO L276 IsEmpty]: Start isEmpty. Operand 158980 states and 220060 transitions. [2021-11-07 13:37:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 13:37:37,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:37,657 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] [2021-11-07 13:37:37,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 13:37:37,657 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-07 13:37:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1485957641, now seen corresponding path program 1 times [2021-11-07 13:37:37,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:37,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809575326] [2021-11-07 13:37:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:37,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:37:37,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:37,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809575326] [2021-11-07 13:37:37,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809575326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:37,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:37,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:37:37,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070849822] [2021-11-07 13:37:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:37,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:37:37,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:37:37,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:37:37,754 INFO L87 Difference]: Start difference. First operand 158980 states and 220060 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)