./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/ddv-machzwd/ddv_machzwd_outb.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash f2a28b716690d853e4267de531a39f6e4337982c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/ddv-machzwd/ddv_machzwd_outb.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 32bit --witnessprinter.graph.data.programhash f2a28b716690d853e4267de531a39f6e4337982c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 02:11:29,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 02:11:29,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 02:11:29,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 02:11:29,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 02:11:29,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 02:11:29,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 02:11:29,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 02:11:29,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 02:11:29,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 02:11:29,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 02:11:29,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 02:11:29,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 02:11:29,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 02:11:29,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 02:11:29,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 02:11:29,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 02:11:29,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 02:11:29,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 02:11:29,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 02:11:29,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 02:11:29,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 02:11:29,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 02:11:29,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 02:11:29,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 02:11:29,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 02:11:29,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 02:11:29,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 02:11:29,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 02:11:29,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 02:11:29,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 02:11:29,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 02:11:29,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 02:11:29,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 02:11:29,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 02:11:29,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 02:11:29,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 02:11:29,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 02:11:29,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 02:11:29,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 02:11:29,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 02:11:29,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 02:11:29,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 02:11:29,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 02:11:29,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 02:11:29,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 02:11:29,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 02:11:29,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 02:11:29,534 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 02:11:29,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 02:11:29,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 02:11:29,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 02:11:29,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 02:11:29,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 02:11:29,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 02:11:29,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 02:11:29,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 02:11:29,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 02:11:29,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:11:29,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 02:11:29,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 02:11:29,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 02:11:29,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 02:11:29,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 02:11:29,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 02:11:29,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 02:11:29,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2a28b716690d853e4267de531a39f6e4337982c [2021-08-26 02:11:29,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 02:11:29,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 02:11:29,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 02:11:29,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 02:11:29,891 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 02:11:29,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-08-26 02:11:29,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11a05614/78b2c8612d4b491b990146a0497ad480/FLAG0f0e35e2d [2021-08-26 02:11:30,643 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 02:11:30,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-08-26 02:11:30,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11a05614/78b2c8612d4b491b990146a0497ad480/FLAG0f0e35e2d [2021-08-26 02:11:30,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11a05614/78b2c8612d4b491b990146a0497ad480 [2021-08-26 02:11:30,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 02:11:30,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 02:11:30,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 02:11:30,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 02:11:30,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 02:11:30,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:11:30" (1/1) ... [2021-08-26 02:11:30,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e515a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:30, skipping insertion in model container [2021-08-26 02:11:30,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:11:30" (1/1) ... [2021-08-26 02:11:30,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 02:11:31,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 02:11:31,191 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-08-26 02:11:31,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:11:31,938 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 02:11:31,947 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-08-26 02:11:32,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:11:32,201 INFO L208 MainTranslator]: Completed translation [2021-08-26 02:11:32,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32 WrapperNode [2021-08-26 02:11:32,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 02:11:32,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 02:11:32,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 02:11:32,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 02:11:32,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 02:11:32,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 02:11:32,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 02:11:32,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 02:11:32,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 02:11:32,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 02:11:32,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 02:11:32,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 02:11:32,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (1/1) ... [2021-08-26 02:11:32,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:11:32,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:32,599 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) [2021-08-26 02:11:32,636 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 [2021-08-26 02:11:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 02:11:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-08-26 02:11:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 02:11:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 02:11:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 02:11:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 02:11:36,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 02:11:36,271 INFO L299 CfgBuilder]: Removed 575 assume(true) statements. [2021-08-26 02:11:36,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:11:36 BoogieIcfgContainer [2021-08-26 02:11:36,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 02:11:36,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 02:11:36,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 02:11:36,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 02:11:36,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:11:30" (1/3) ... [2021-08-26 02:11:36,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@922f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:11:36, skipping insertion in model container [2021-08-26 02:11:36,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:11:32" (2/3) ... [2021-08-26 02:11:36,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@922f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:11:36, skipping insertion in model container [2021-08-26 02:11:36,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:11:36" (3/3) ... [2021-08-26 02:11:36,280 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2021-08-26 02:11:36,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 02:11:36,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-08-26 02:11:36,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 02:11:36,328 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 02:11:36,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-08-26 02:11:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 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) [2021-08-26 02:11:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 02:11:36,361 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:36,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:36,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1570735153, now seen corresponding path program 1 times [2021-08-26 02:11:36,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:36,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668181770] [2021-08-26 02:11:36,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:36,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:11:36,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:36,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668181770] [2021-08-26 02:11:36,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668181770] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 02:11:36,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:11:36,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 02:11:36,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72458309] [2021-08-26 02:11:36,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 02:11:36,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 02:11:36,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 02:11:36,784 INFO L87 Difference]: Start difference. First operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-26 02:11:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:36,830 INFO L93 Difference]: Finished difference Result 1003 states and 1293 transitions. [2021-08-26 02:11:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 02:11:36,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-26 02:11:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:36,844 INFO L225 Difference]: With dead ends: 1003 [2021-08-26 02:11:36,844 INFO L226 Difference]: Without dead ends: 491 [2021-08-26 02:11:36,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 02:11:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-08-26 02:11:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-08-26 02:11:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 452 states have (on average 1.2964601769911503) internal successors, (586), 490 states have internal predecessors, (586), 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) [2021-08-26 02:11:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2021-08-26 02:11:36,902 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 11 [2021-08-26 02:11:36,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:36,902 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2021-08-26 02:11:36,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-26 02:11:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2021-08-26 02:11:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 02:11:36,903 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:36,903 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:36,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 02:11:36,904 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:36,905 INFO L82 PathProgramCache]: Analyzing trace with hash 857304725, now seen corresponding path program 1 times [2021-08-26 02:11:36,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:36,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260878735] [2021-08-26 02:11:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:36,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:11:36,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:36,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260878735] [2021-08-26 02:11:36,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260878735] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 02:11:36,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:11:36,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 02:11:36,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557950256] [2021-08-26 02:11:36,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 02:11:36,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:36,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 02:11:36,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 02:11:36,990 INFO L87 Difference]: Start difference. First operand 491 states and 586 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-26 02:11:37,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:37,034 INFO L93 Difference]: Finished difference Result 981 states and 1172 transitions. [2021-08-26 02:11:37,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 02:11:37,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-08-26 02:11:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:37,038 INFO L225 Difference]: With dead ends: 981 [2021-08-26 02:11:37,039 INFO L226 Difference]: Without dead ends: 495 [2021-08-26 02:11:37,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 02:11:37,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-08-26 02:11:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2021-08-26 02:11:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 454 states have (on average 1.2951541850220265) internal successors, (588), 492 states have internal predecessors, (588), 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) [2021-08-26 02:11:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 588 transitions. [2021-08-26 02:11:37,070 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 588 transitions. Word has length 11 [2021-08-26 02:11:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:37,071 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 588 transitions. [2021-08-26 02:11:37,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-26 02:11:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 588 transitions. [2021-08-26 02:11:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-26 02:11:37,073 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:37,073 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:37,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 02:11:37,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:37,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1488032985, now seen corresponding path program 1 times [2021-08-26 02:11:37,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:37,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045060546] [2021-08-26 02:11:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:37,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:37,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:37,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045060546] [2021-08-26 02:11:37,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045060546] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:37,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204246656] [2021-08-26 02:11:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:37,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:37,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:37,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:37,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 02:11:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:37,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 02:11:37,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:37,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204246656] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:37,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:37,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-08-26 02:11:37,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054137526] [2021-08-26 02:11:37,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 02:11:37,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:37,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 02:11:37,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-26 02:11:37,806 INFO L87 Difference]: Start difference. First operand 493 states and 588 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-08-26 02:11:37,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:37,869 INFO L93 Difference]: Finished difference Result 984 states and 1174 transitions. [2021-08-26 02:11:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 02:11:37,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 15 [2021-08-26 02:11:37,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:37,873 INFO L225 Difference]: With dead ends: 984 [2021-08-26 02:11:37,873 INFO L226 Difference]: Without dead ends: 497 [2021-08-26 02:11:37,877 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-26 02:11:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-08-26 02:11:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 495. [2021-08-26 02:11:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 456 states have (on average 1.293859649122807) internal successors, (590), 494 states have internal predecessors, (590), 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) [2021-08-26 02:11:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 590 transitions. [2021-08-26 02:11:37,906 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 590 transitions. Word has length 15 [2021-08-26 02:11:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:37,906 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 590 transitions. [2021-08-26 02:11:37,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-08-26 02:11:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 590 transitions. [2021-08-26 02:11:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 02:11:37,907 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:37,907 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:37,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:38,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:38,136 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:38,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1978982629, now seen corresponding path program 2 times [2021-08-26 02:11:38,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:38,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954545282] [2021-08-26 02:11:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:38,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:38,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:38,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954545282] [2021-08-26 02:11:38,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954545282] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:38,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237048337] [2021-08-26 02:11:38,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 02:11:38,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:38,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:38,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-26 02:11:39,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-26 02:11:39,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:11:39,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 02:11:39,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:39,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237048337] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:39,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:39,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-26 02:11:39,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329617233] [2021-08-26 02:11:39,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 02:11:39,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 02:11:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-26 02:11:39,916 INFO L87 Difference]: Start difference. First operand 495 states and 590 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-08-26 02:11:39,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:39,969 INFO L93 Difference]: Finished difference Result 986 states and 1176 transitions. [2021-08-26 02:11:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 02:11:39,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 17 [2021-08-26 02:11:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:39,972 INFO L225 Difference]: With dead ends: 986 [2021-08-26 02:11:39,972 INFO L226 Difference]: Without dead ends: 499 [2021-08-26 02:11:39,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-26 02:11:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-08-26 02:11:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 497. [2021-08-26 02:11:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 458 states have (on average 1.2925764192139737) internal successors, (592), 496 states have internal predecessors, (592), 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) [2021-08-26 02:11:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 592 transitions. [2021-08-26 02:11:39,984 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 592 transitions. Word has length 17 [2021-08-26 02:11:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:39,985 INFO L470 AbstractCegarLoop]: Abstraction has 497 states and 592 transitions. [2021-08-26 02:11:39,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-08-26 02:11:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 592 transitions. [2021-08-26 02:11:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 02:11:39,986 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:39,986 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:40,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:40,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-08-26 02:11:40,201 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:40,202 INFO L82 PathProgramCache]: Analyzing trace with hash -886365987, now seen corresponding path program 3 times [2021-08-26 02:11:40,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:40,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943765464] [2021-08-26 02:11:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:40,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:40,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:40,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943765464] [2021-08-26 02:11:40,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943765464] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:40,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077269395] [2021-08-26 02:11:40,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-26 02:11:40,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:40,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:40,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-26 02:11:44,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-26 02:11:44,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:11:44,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-26 02:11:44,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:45,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077269395] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:45,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:45,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-08-26 02:11:45,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524611728] [2021-08-26 02:11:45,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 02:11:45,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:45,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 02:11:45,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-26 02:11:45,061 INFO L87 Difference]: Start difference. First operand 497 states and 592 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-08-26 02:11:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:45,121 INFO L93 Difference]: Finished difference Result 988 states and 1178 transitions. [2021-08-26 02:11:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 02:11:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 19 [2021-08-26 02:11:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:45,129 INFO L225 Difference]: With dead ends: 988 [2021-08-26 02:11:45,129 INFO L226 Difference]: Without dead ends: 501 [2021-08-26 02:11:45,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-26 02:11:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-08-26 02:11:45,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 499. [2021-08-26 02:11:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 460 states have (on average 1.291304347826087) internal successors, (594), 498 states have internal predecessors, (594), 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) [2021-08-26 02:11:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 594 transitions. [2021-08-26 02:11:45,142 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 594 transitions. Word has length 19 [2021-08-26 02:11:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:45,143 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 594 transitions. [2021-08-26 02:11:45,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-08-26 02:11:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 594 transitions. [2021-08-26 02:11:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-26 02:11:45,144 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:45,144 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:45,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:45,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:45,365 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:45,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1146206751, now seen corresponding path program 4 times [2021-08-26 02:11:45,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:45,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350016427] [2021-08-26 02:11:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:45,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:45,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:45,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350016427] [2021-08-26 02:11:45,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350016427] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:45,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492171565] [2021-08-26 02:11:45,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-26 02:11:45,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:45,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:45,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:45,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 02:11:45,803 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-26 02:11:45,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:11:45,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 02:11:45,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:45,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492171565] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:45,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:45,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-26 02:11:45,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521969990] [2021-08-26 02:11:45,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 02:11:45,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:45,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 02:11:45,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-26 02:11:45,877 INFO L87 Difference]: Start difference. First operand 499 states and 594 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-08-26 02:11:45,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:45,941 INFO L93 Difference]: Finished difference Result 990 states and 1180 transitions. [2021-08-26 02:11:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 02:11:45,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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 21 [2021-08-26 02:11:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:45,944 INFO L225 Difference]: With dead ends: 990 [2021-08-26 02:11:45,944 INFO L226 Difference]: Without dead ends: 503 [2021-08-26 02:11:45,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-26 02:11:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-08-26 02:11:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2021-08-26 02:11:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 462 states have (on average 1.29004329004329) internal successors, (596), 500 states have internal predecessors, (596), 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) [2021-08-26 02:11:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 596 transitions. [2021-08-26 02:11:45,956 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 596 transitions. Word has length 21 [2021-08-26 02:11:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:45,957 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 596 transitions. [2021-08-26 02:11:45,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-08-26 02:11:45,957 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 596 transitions. [2021-08-26 02:11:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 02:11:45,961 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:45,961 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:45,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:46,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:46,177 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:46,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:46,177 INFO L82 PathProgramCache]: Analyzing trace with hash 238488289, now seen corresponding path program 5 times [2021-08-26 02:11:46,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:46,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688124998] [2021-08-26 02:11:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:46,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:46,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:46,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688124998] [2021-08-26 02:11:46,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688124998] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:46,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521442118] [2021-08-26 02:11:46,289 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-26 02:11:46,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:46,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:46,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 02:11:46,725 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-26 02:11:46,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:11:46,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 02:11:46,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:46,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521442118] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:46,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:46,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-08-26 02:11:46,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148143362] [2021-08-26 02:11:46,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 02:11:46,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:46,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 02:11:46,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-26 02:11:46,856 INFO L87 Difference]: Start difference. First operand 501 states and 596 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-08-26 02:11:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:46,933 INFO L93 Difference]: Finished difference Result 992 states and 1182 transitions. [2021-08-26 02:11:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 02:11:46,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 23 [2021-08-26 02:11:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:46,936 INFO L225 Difference]: With dead ends: 992 [2021-08-26 02:11:46,936 INFO L226 Difference]: Without dead ends: 505 [2021-08-26 02:11:46,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-26 02:11:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-08-26 02:11:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 503. [2021-08-26 02:11:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 464 states have (on average 1.2887931034482758) internal successors, (598), 502 states have internal predecessors, (598), 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) [2021-08-26 02:11:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 598 transitions. [2021-08-26 02:11:46,947 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 598 transitions. Word has length 23 [2021-08-26 02:11:46,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:46,947 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 598 transitions. [2021-08-26 02:11:46,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-08-26 02:11:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 598 transitions. [2021-08-26 02:11:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 02:11:46,948 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:46,948 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:46,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:47,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:47,173 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:47,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:47,173 INFO L82 PathProgramCache]: Analyzing trace with hash -200592605, now seen corresponding path program 6 times [2021-08-26 02:11:47,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:47,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443991480] [2021-08-26 02:11:47,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:47,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:47,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:47,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443991480] [2021-08-26 02:11:47,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443991480] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:47,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895953645] [2021-08-26 02:11:47,318 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-26 02:11:47,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:47,319 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:47,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-26 02:11:56,802 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-26 02:11:56,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:11:56,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 02:11:56,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:56,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895953645] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:56,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:56,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-08-26 02:11:56,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789213821] [2021-08-26 02:11:56,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 02:11:56,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 02:11:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-26 02:11:56,945 INFO L87 Difference]: Start difference. First operand 503 states and 598 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-08-26 02:11:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:57,008 INFO L93 Difference]: Finished difference Result 994 states and 1184 transitions. [2021-08-26 02:11:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-26 02:11:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 25 [2021-08-26 02:11:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:57,011 INFO L225 Difference]: With dead ends: 994 [2021-08-26 02:11:57,011 INFO L226 Difference]: Without dead ends: 507 [2021-08-26 02:11:57,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 39.2ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-26 02:11:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-08-26 02:11:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 505. [2021-08-26 02:11:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 466 states have (on average 1.2875536480686696) internal successors, (600), 504 states have internal predecessors, (600), 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) [2021-08-26 02:11:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 600 transitions. [2021-08-26 02:11:57,022 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 600 transitions. Word has length 25 [2021-08-26 02:11:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:57,023 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 600 transitions. [2021-08-26 02:11:57,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-08-26 02:11:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 600 transitions. [2021-08-26 02:11:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-26 02:11:57,024 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:57,024 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:57,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:57,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:57,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:57,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1250536731, now seen corresponding path program 7 times [2021-08-26 02:11:57,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:57,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522552442] [2021-08-26 02:11:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:57,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:57,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:57,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522552442] [2021-08-26 02:11:57,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522552442] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:57,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569446329] [2021-08-26 02:11:57,422 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-26 02:11:57,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:57,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:57,423 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:57,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-26 02:11:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:57,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-26 02:11:57,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:11:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:57,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569446329] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:57,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:11:57,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-08-26 02:11:57,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406519165] [2021-08-26 02:11:57,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-26 02:11:57,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:11:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-26 02:11:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-26 02:11:57,908 INFO L87 Difference]: Start difference. First operand 505 states and 600 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-08-26 02:11:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:11:57,977 INFO L93 Difference]: Finished difference Result 996 states and 1186 transitions. [2021-08-26 02:11:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-26 02:11:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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 27 [2021-08-26 02:11:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:11:57,979 INFO L225 Difference]: With dead ends: 996 [2021-08-26 02:11:57,979 INFO L226 Difference]: Without dead ends: 509 [2021-08-26 02:11:57,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 49.6ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-26 02:11:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-08-26 02:11:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 507. [2021-08-26 02:11:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 468 states have (on average 1.2863247863247864) internal successors, (602), 506 states have internal predecessors, (602), 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) [2021-08-26 02:11:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 602 transitions. [2021-08-26 02:11:57,990 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 602 transitions. Word has length 27 [2021-08-26 02:11:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:11:57,990 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 602 transitions. [2021-08-26 02:11:57,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-08-26 02:11:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 602 transitions. [2021-08-26 02:11:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-26 02:11:57,991 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:11:57,991 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:11:58,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-26 02:11:58,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:58,217 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:11:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:11:58,217 INFO L82 PathProgramCache]: Analyzing trace with hash -929527257, now seen corresponding path program 8 times [2021-08-26 02:11:58,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:11:58,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85913632] [2021-08-26 02:11:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:11:58,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:11:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:11:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:11:58,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:11:58,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85913632] [2021-08-26 02:11:58,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85913632] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:11:58,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422213201] [2021-08-26 02:11:58,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 02:11:58,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:11:58,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:11:58,381 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:11:58,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-26 02:12:00,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-26 02:12:00,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:12:00,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-26 02:12:00,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:00,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422213201] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:12:00,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:12:00,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-08-26 02:12:00,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717724799] [2021-08-26 02:12:00,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-26 02:12:00,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:12:00,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-26 02:12:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-26 02:12:00,788 INFO L87 Difference]: Start difference. First operand 507 states and 602 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 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) [2021-08-26 02:12:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:00,858 INFO L93 Difference]: Finished difference Result 998 states and 1188 transitions. [2021-08-26 02:12:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 02:12:00,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 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 29 [2021-08-26 02:12:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:00,861 INFO L225 Difference]: With dead ends: 998 [2021-08-26 02:12:00,861 INFO L226 Difference]: Without dead ends: 511 [2021-08-26 02:12:00,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-26 02:12:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-08-26 02:12:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 509. [2021-08-26 02:12:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 470 states have (on average 1.2851063829787235) internal successors, (604), 508 states have internal predecessors, (604), 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) [2021-08-26 02:12:00,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 604 transitions. [2021-08-26 02:12:00,872 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 604 transitions. Word has length 29 [2021-08-26 02:12:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:00,873 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 604 transitions. [2021-08-26 02:12:00,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 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) [2021-08-26 02:12:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 604 transitions. [2021-08-26 02:12:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 02:12:00,875 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:00,875 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:00,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:01,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-26 02:12:01,093 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:01,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:01,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1677068055, now seen corresponding path program 9 times [2021-08-26 02:12:01,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:12:01,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360377176] [2021-08-26 02:12:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:12:01,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:12:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:12:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:01,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:12:01,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360377176] [2021-08-26 02:12:01,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360377176] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:12:01,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615439231] [2021-08-26 02:12:01,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-26 02:12:01,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:12:01,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:12:01,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 02:12:01,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-26 02:12:20,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-26 02:12:20,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:12:20,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-26 02:12:20,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:20,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615439231] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 02:12:20,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:12:20,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-08-26 02:12:20,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880594501] [2021-08-26 02:12:20,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-26 02:12:20,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:12:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-26 02:12:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-26 02:12:20,873 INFO L87 Difference]: Start difference. First operand 509 states and 604 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-08-26 02:12:20,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:20,947 INFO L93 Difference]: Finished difference Result 999 states and 1189 transitions. [2021-08-26 02:12:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 02:12:20,947 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 31 [2021-08-26 02:12:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:20,949 INFO L225 Difference]: With dead ends: 999 [2021-08-26 02:12:20,949 INFO L226 Difference]: Without dead ends: 512 [2021-08-26 02:12:20,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 61.1ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-26 02:12:20,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-08-26 02:12:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2021-08-26 02:12:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 472 states have (on average 1.2838983050847457) internal successors, (606), 510 states have internal predecessors, (606), 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) [2021-08-26 02:12:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 606 transitions. [2021-08-26 02:12:20,959 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 606 transitions. Word has length 31 [2021-08-26 02:12:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 606 transitions. [2021-08-26 02:12:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2021-08-26 02:12:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 606 transitions. [2021-08-26 02:12:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 02:12:20,960 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:20,960 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:21,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:21,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 02:12:21,186 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:21,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1490730795, now seen corresponding path program 10 times [2021-08-26 02:12:21,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:12:21,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658193666] [2021-08-26 02:12:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:12:21,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:12:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 02:12:21,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 02:12:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 02:12:22,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 02:12:22,069 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 02:12:22,070 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:12:22,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 02:12:22,087 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 02:12:22,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:12:22 BoogieIcfgContainer [2021-08-26 02:12:22,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 02:12:22,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 02:12:22,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 02:12:22,229 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 02:12:22,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:11:36" (3/4) ... [2021-08-26 02:12:22,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 02:12:22,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 02:12:22,234 INFO L168 Benchmark]: Toolchain (without parser) took 51299.06 ms. Allocated memory was 50.3 MB in the beginning and 304.1 MB in the end (delta: 253.8 MB). Free memory was 32.9 MB in the beginning and 205.0 MB in the end (delta: -172.1 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,234 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 02:12:22,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1267.66 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 32.7 MB in the beginning and 35.1 MB in the end (delta: -2.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.43 ms. Allocated memory is still 79.7 MB. Free memory was 35.1 MB in the beginning and 38.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,235 INFO L168 Benchmark]: Boogie Preprocessor took 149.58 ms. Allocated memory is still 79.7 MB. Free memory was 38.7 MB in the beginning and 28.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,235 INFO L168 Benchmark]: RCFGBuilder took 3697.06 ms. Allocated memory was 79.7 MB in the beginning and 188.7 MB in the end (delta: 109.1 MB). Free memory was 28.2 MB in the beginning and 50.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,235 INFO L168 Benchmark]: TraceAbstraction took 45954.22 ms. Allocated memory was 188.7 MB in the beginning and 304.1 MB in the end (delta: 115.3 MB). Free memory was 50.5 MB in the beginning and 205.0 MB in the end (delta: -154.5 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2021-08-26 02:12:22,236 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 304.1 MB. Free memory is still 205.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 02:12:22,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1267.66 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 32.7 MB in the beginning and 35.1 MB in the end (delta: -2.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 221.43 ms. Allocated memory is still 79.7 MB. Free memory was 35.1 MB in the beginning and 38.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.58 ms. Allocated memory is still 79.7 MB. Free memory was 38.7 MB in the beginning and 28.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3697.06 ms. Allocated memory was 79.7 MB in the beginning and 188.7 MB in the end (delta: 109.1 MB). Free memory was 28.2 MB in the beginning and 50.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45954.22 ms. Allocated memory was 188.7 MB in the beginning and 304.1 MB in the end (delta: 115.3 MB). Free memory was 50.5 MB in the beginning and 205.0 MB in the end (delta: -154.5 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.43 ms. Allocated memory is still 304.1 MB. Free memory is still 205.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 1484. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2596] struct ddv_pci_driver registered_pci_driver; [L2607] struct registered_irq registered_irq[16]; [L2617] short number_tasklet_registered = 0; [L2624] struct ddv_tasklet tasklet_registered[1]; [L2634] short number_timer_registered = 0; [L2640] struct ddv_timer timer_registered[1]; [L2650] struct work_struct *shared_workqueue[10]; [L2660] spinlock_t kernel_lock; [L3346] request_queue_t fixed_request_queue[10]; [L3348] int number_request_queue_used = 0; [L3432] struct proc_dir_entry *proc_root_driver; [L3742] struct ddv_tty_driver global_tty_driver; [L3921] int ddv_ioport_request_start; [L3922] int ddv_ioport_request_len; VAL [={-1:7}, ={0:0}, ={-1:8}, ={0:0}, action=0, cdev_registered={98:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2724] int err; [L2726] current_execution_context = 1 [L2664] int i; [L4153] lock->init = 1 [L4154] lock->locked = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2668] COND FALSE !(i < 10) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2672] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2672] COND TRUE i < 1 [L2673] tasklet_registered[i].tasklet = ((void *)0) [L2674] tasklet_registered[i].is_running = 0 VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2672] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2672] COND FALSE !(i < 1) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L1776] int ret; [L4480] return 0; VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L12] COND TRUE !expression VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L12] reach_error() VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={66:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={81:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 504 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 45763.9ms, OverallIterations: 12, TraceHistogramMax: 10, EmptinessCheckTime: 19.4ms, AutomataDifference: 777.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6411 SDtfs, 9900 SDslu, 9814 SDs, 0 SdLazy, 260 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 306.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 339.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 181.3ms AutomataMinimizationTime, 11 MinimizatonAttempts, 19 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 451.2ms SsaConstructionTime, 37559.6ms SatisfiabilityAnalysisTime, 2063.2ms InterpolantComputationTime, 469 NumberOfCodeBlocks, 466 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5237 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 18/588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 02:12:22,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 02:12:24,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 02:12:24,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 02:12:24,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 02:12:24,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 02:12:24,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 02:12:24,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 02:12:24,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 02:12:24,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 02:12:24,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 02:12:24,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 02:12:24,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 02:12:24,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 02:12:24,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 02:12:24,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 02:12:24,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 02:12:24,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 02:12:24,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 02:12:24,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 02:12:24,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 02:12:24,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 02:12:24,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 02:12:24,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 02:12:24,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 02:12:24,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 02:12:24,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 02:12:24,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 02:12:24,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 02:12:24,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 02:12:24,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 02:12:24,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 02:12:24,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 02:12:24,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 02:12:24,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 02:12:24,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 02:12:24,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 02:12:24,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 02:12:24,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 02:12:24,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 02:12:24,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 02:12:24,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 02:12:24,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 02:12:24,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 02:12:24,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 02:12:24,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 02:12:24,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 02:12:24,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 02:12:24,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 02:12:24,161 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 02:12:24,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 02:12:24,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 02:12:24,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 02:12:24,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 02:12:24,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 02:12:24,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 02:12:24,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 02:12:24,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 02:12:24,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 02:12:24,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 02:12:24,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 02:12:24,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:12:24,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 02:12:24,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 02:12:24,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 02:12:24,164 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 02:12:24,164 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 02:12:24,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 02:12:24,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 02:12:24,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 02:12:24,165 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2a28b716690d853e4267de531a39f6e4337982c [2021-08-26 02:12:24,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 02:12:24,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 02:12:24,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 02:12:24,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 02:12:24,524 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 02:12:24,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-08-26 02:12:24,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb5c1c9/373defc842b74f64981cbafa62f3490a/FLAG781ae9863 [2021-08-26 02:12:25,230 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 02:12:25,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-08-26 02:12:25,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb5c1c9/373defc842b74f64981cbafa62f3490a/FLAG781ae9863 [2021-08-26 02:12:25,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb5c1c9/373defc842b74f64981cbafa62f3490a [2021-08-26 02:12:25,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 02:12:25,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 02:12:25,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 02:12:25,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 02:12:25,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 02:12:25,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:12:25" (1/1) ... [2021-08-26 02:12:25,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee4e2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:25, skipping insertion in model container [2021-08-26 02:12:25,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:12:25" (1/1) ... [2021-08-26 02:12:25,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 02:12:25,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 02:12:25,745 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-08-26 02:12:26,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:12:26,584 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 02:12:26,597 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-08-26 02:12:26,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:12:26,897 INFO L208 MainTranslator]: Completed translation [2021-08-26 02:12:26,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26 WrapperNode [2021-08-26 02:12:26,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 02:12:26,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 02:12:26,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 02:12:26,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 02:12:26,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:26,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 02:12:27,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 02:12:27,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 02:12:27,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 02:12:27,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 02:12:27,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 02:12:27,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 02:12:27,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 02:12:27,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (1/1) ... [2021-08-26 02:12:27,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:12:27,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:12:27,327 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) [2021-08-26 02:12:27,351 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 [2021-08-26 02:12:27,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 02:12:27,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-08-26 02:12:27,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 02:12:27,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-08-26 02:12:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 02:12:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-26 02:12:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 02:12:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 02:12:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 02:12:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-26 02:12:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-26 02:12:33,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 02:12:33,119 INFO L299 CfgBuilder]: Removed 575 assume(true) statements. [2021-08-26 02:12:33,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:12:33 BoogieIcfgContainer [2021-08-26 02:12:33,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 02:12:33,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 02:12:33,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 02:12:33,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 02:12:33,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:12:25" (1/3) ... [2021-08-26 02:12:33,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2893c6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:12:33, skipping insertion in model container [2021-08-26 02:12:33,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:12:26" (2/3) ... [2021-08-26 02:12:33,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2893c6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:12:33, skipping insertion in model container [2021-08-26 02:12:33,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:12:33" (3/3) ... [2021-08-26 02:12:33,128 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2021-08-26 02:12:33,132 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 02:12:33,132 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-08-26 02:12:33,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 02:12:33,175 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 02:12:33,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-08-26 02:12:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 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) [2021-08-26 02:12:33,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 02:12:33,197 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:33,197 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:33,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:33,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1570735153, now seen corresponding path program 1 times [2021-08-26 02:12:33,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 02:12:33,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650995851] [2021-08-26 02:12:33,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:12:33,214 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 02:12:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 02:12:33,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 02:12:33,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 02:12:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:12:33,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 02:12:33,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:12:33,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 02:12:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:12:33,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 02:12:33,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650995851] [2021-08-26 02:12:33,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650995851] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 02:12:33,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:12:33,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 02:12:33,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38071752] [2021-08-26 02:12:33,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 02:12:33,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 02:12:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 02:12:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 02:12:33,899 INFO L87 Difference]: Start difference. First operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-26 02:12:33,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:33,966 INFO L93 Difference]: Finished difference Result 1003 states and 1293 transitions. [2021-08-26 02:12:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 02:12:33,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-26 02:12:33,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:33,986 INFO L225 Difference]: With dead ends: 1003 [2021-08-26 02:12:33,987 INFO L226 Difference]: Without dead ends: 491 [2021-08-26 02:12:33,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 02:12:34,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-08-26 02:12:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-08-26 02:12:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 452 states have (on average 1.2964601769911503) internal successors, (586), 490 states have internal predecessors, (586), 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) [2021-08-26 02:12:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2021-08-26 02:12:34,058 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 11 [2021-08-26 02:12:34,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:34,058 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2021-08-26 02:12:34,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-08-26 02:12:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2021-08-26 02:12:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 02:12:34,059 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:34,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:34,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:34,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 02:12:34,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:34,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:34,274 INFO L82 PathProgramCache]: Analyzing trace with hash 857304725, now seen corresponding path program 1 times [2021-08-26 02:12:34,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 02:12:34,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987933535] [2021-08-26 02:12:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:12:34,275 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 02:12:34,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 02:12:34,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 02:12:34,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 02:12:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:12:34,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-26 02:12:34,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:12:34,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 02:12:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:12:34,807 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 02:12:34,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987933535] [2021-08-26 02:12:34,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987933535] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 02:12:34,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:12:34,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-26 02:12:34,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151805420] [2021-08-26 02:12:34,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 02:12:34,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 02:12:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 02:12:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 02:12:34,811 INFO L87 Difference]: Start difference. First operand 491 states and 586 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-26 02:12:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:34,966 INFO L93 Difference]: Finished difference Result 1466 states and 1752 transitions. [2021-08-26 02:12:34,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 02:12:34,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 11 [2021-08-26 02:12:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:34,976 INFO L225 Difference]: With dead ends: 1466 [2021-08-26 02:12:34,976 INFO L226 Difference]: Without dead ends: 980 [2021-08-26 02:12:34,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 02:12:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-08-26 02:12:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 495. [2021-08-26 02:12:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 456 states have (on average 1.293859649122807) internal successors, (590), 494 states have internal predecessors, (590), 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) [2021-08-26 02:12:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 590 transitions. [2021-08-26 02:12:35,003 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 590 transitions. Word has length 11 [2021-08-26 02:12:35,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:35,004 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 590 transitions. [2021-08-26 02:12:35,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-26 02:12:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 590 transitions. [2021-08-26 02:12:35,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 02:12:35,004 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:35,005 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:35,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:35,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 02:12:35,218 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:35,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:35,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1978982629, now seen corresponding path program 1 times [2021-08-26 02:12:35,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 02:12:35,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15203704] [2021-08-26 02:12:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:12:35,220 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 02:12:35,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 02:12:35,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 02:12:35,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 02:12:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:12:35,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 02:12:35,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:35,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 02:12:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:35,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 02:12:35,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15203704] [2021-08-26 02:12:35,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15203704] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-26 02:12:35,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:12:35,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-08-26 02:12:35,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36858224] [2021-08-26 02:12:35,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 02:12:35,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 02:12:35,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 02:12:35,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 02:12:35,858 INFO L87 Difference]: Start difference. First operand 495 states and 590 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-08-26 02:12:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:36,122 INFO L93 Difference]: Finished difference Result 990 states and 1183 transitions. [2021-08-26 02:12:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 02:12:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 17 [2021-08-26 02:12:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:36,125 INFO L225 Difference]: With dead ends: 990 [2021-08-26 02:12:36,126 INFO L226 Difference]: Without dead ends: 503 [2021-08-26 02:12:36,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 107.2ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-08-26 02:12:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-08-26 02:12:36,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2021-08-26 02:12:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 464 states have (on average 1.2866379310344827) internal successors, (597), 502 states have internal predecessors, (597), 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) [2021-08-26 02:12:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 597 transitions. [2021-08-26 02:12:36,142 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 597 transitions. Word has length 17 [2021-08-26 02:12:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:36,142 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 597 transitions. [2021-08-26 02:12:36,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-08-26 02:12:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 597 transitions. [2021-08-26 02:12:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 02:12:36,143 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:36,143 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:36,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:36,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 02:12:36,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:36,358 INFO L82 PathProgramCache]: Analyzing trace with hash -200592605, now seen corresponding path program 2 times [2021-08-26 02:12:36,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 02:12:36,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519733501] [2021-08-26 02:12:36,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 02:12:36,362 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 02:12:36,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 02:12:36,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 02:12:36,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 02:12:43,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-26 02:12:43,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 02:12:43,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 02:12:43,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 02:12:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:43,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 02:12:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 02:12:43,556 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 02:12:43,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519733501] [2021-08-26 02:12:43,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519733501] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-26 02:12:43,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 02:12:43,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-08-26 02:12:43,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382659624] [2021-08-26 02:12:43,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-26 02:12:43,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 02:12:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-26 02:12:43,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-08-26 02:12:43,558 INFO L87 Difference]: Start difference. First operand 503 states and 597 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-08-26 02:12:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:12:44,038 INFO L93 Difference]: Finished difference Result 998 states and 1189 transitions. [2021-08-26 02:12:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 02:12:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 25 [2021-08-26 02:12:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:12:44,041 INFO L225 Difference]: With dead ends: 998 [2021-08-26 02:12:44,041 INFO L226 Difference]: Without dead ends: 511 [2021-08-26 02:12:44,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 229.1ms TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-08-26 02:12:44,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-08-26 02:12:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2021-08-26 02:12:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 472 states have (on average 1.2817796610169492) internal successors, (605), 510 states have internal predecessors, (605), 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) [2021-08-26 02:12:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 605 transitions. [2021-08-26 02:12:44,054 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 605 transitions. Word has length 25 [2021-08-26 02:12:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:12:44,054 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 605 transitions. [2021-08-26 02:12:44,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-08-26 02:12:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 605 transitions. [2021-08-26 02:12:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 02:12:44,055 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:12:44,056 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:12:44,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 02:12:44,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 02:12:44,278 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-08-26 02:12:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:12:44,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1490730795, now seen corresponding path program 3 times [2021-08-26 02:12:44,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 02:12:44,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218789427] [2021-08-26 02:12:44,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-26 02:12:44,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 02:12:44,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 02:12:44,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 02:12:44,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-26 02:12:54,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-08-26 02:12:54,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-08-26 02:12:54,182 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 02:13:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 02:13:05,028 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-26 02:13:05,029 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 02:13:05,030 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:13:05,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-26 02:13:05,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 02:13:05,257 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 02:13:05,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:13:05 BoogieIcfgContainer [2021-08-26 02:13:05,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 02:13:05,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 02:13:05,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 02:13:05,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 02:13:05,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:12:33" (3/4) ... [2021-08-26 02:13:05,414 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 02:13:05,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 02:13:05,415 INFO L168 Benchmark]: Toolchain (without parser) took 39952.27 ms. Allocated memory was 58.7 MB in the beginning and 245.4 MB in the end (delta: 186.6 MB). Free memory was 40.7 MB in the beginning and 118.1 MB in the end (delta: -77.4 MB). Peak memory consumption was 107.8 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,416 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 02:13:05,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1432.63 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 29.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 238.03 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 29.5 MB in the beginning and 57.3 MB in the end (delta: -27.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,417 INFO L168 Benchmark]: Boogie Preprocessor took 161.80 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 46.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,417 INFO L168 Benchmark]: RCFGBuilder took 5819.81 ms. Allocated memory was 98.6 MB in the beginning and 199.2 MB in the end (delta: 100.7 MB). Free memory was 46.3 MB in the beginning and 93.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 97.3 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,417 INFO L168 Benchmark]: TraceAbstraction took 32287.95 ms. Allocated memory was 199.2 MB in the beginning and 245.4 MB in the end (delta: 46.1 MB). Free memory was 92.2 MB in the beginning and 118.1 MB in the end (delta: -25.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-08-26 02:13:05,417 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 245.4 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 02:13:05,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1432.63 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 29.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 238.03 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 29.5 MB in the beginning and 57.3 MB in the end (delta: -27.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.80 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 46.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5819.81 ms. Allocated memory was 98.6 MB in the beginning and 199.2 MB in the end (delta: 100.7 MB). Free memory was 46.3 MB in the beginning and 93.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 97.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32287.95 ms. Allocated memory was 199.2 MB in the beginning and 245.4 MB in the end (delta: 46.1 MB). Free memory was 92.2 MB in the beginning and 118.1 MB in the end (delta: -25.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.18 ms. Allocated memory is still 245.4 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 1474. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2596] struct ddv_pci_driver registered_pci_driver; [L2607] struct registered_irq registered_irq[16]; [L2617] short number_tasklet_registered = 0; [L2624] struct ddv_tasklet tasklet_registered[1]; [L2634] short number_timer_registered = 0; [L2640] struct ddv_timer timer_registered[1]; [L2650] struct work_struct *shared_workqueue[10]; [L2660] spinlock_t kernel_lock; [L3346] request_queue_t fixed_request_queue[10]; [L3348] int number_request_queue_used = 0; [L3432] struct proc_dir_entry *proc_root_driver; [L3742] struct ddv_tty_driver global_tty_driver; [L3921] int ddv_ioport_request_start; [L3922] int ddv_ioport_request_len; VAL [={0:0}, ={-1:8}, ={0:0}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2724] int err; [L2726] current_execution_context = 1 [L2664] int i; [L4153] lock->init = 1 [L4154] lock->locked = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2668] COND FALSE !(i < 10) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2672] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2672] COND TRUE i < 1 [L2673] tasklet_registered[i].tasklet = ((void *)0) [L2674] tasklet_registered[i].is_running = 0 VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2672] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L2672] COND FALSE !(i < 1) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L1776] int ret; [L4480] return 0; VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L12] COND TRUE !expression VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] [L12] reach_error() VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={1048724:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1081787:0}, fixed_cdev_used=0, fixed_gendisk={-537952569:0}, fixed_request_queue={1081755:0}, genhd_registered={1074823564:0}, global_tty_driver={1609563753:0}, jiffies=0, kernel_lock={-537952570:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1609531074:0}, registered_pci_driver={-1074823474:0}, shared_workqueue={1072660166:0}, tasklet_registered={806387996:0}, timer_registered={-1206877934:0}, zf_action=2048, zf_expect_close=0, zf_fops={1081745:0}, zf_info={-806388030:0}, zf_is_open={535789254:0}, zf_lock={-806388120:0}, zf_miscdev={-1609563752:0}, zf_notifier={537952666:0}, zf_port_lock={-269517208:0}, zf_timer={-1081662:0}] - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 504 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 32088.4ms, OverallIterations: 5, TraceHistogramMax: 10, EmptinessCheckTime: 10.7ms, AutomataDifference: 1034.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2343 SDtfs, 1753 SDslu, 5777 SDs, 0 SdLazy, 220 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 562.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 346.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 103.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 485 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 254.1ms SsaConstructionTime, 16723.9ms SatisfiabilityAnalysisTime, 999.4ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1508 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 02:13:05,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...