./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:02:19,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:02:19,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:02:19,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:02:19,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:02:19,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:02:19,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:02:19,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:02:19,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:02:19,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:02:19,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:02:19,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:02:19,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:02:19,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:02:19,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:02:19,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:02:19,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:02:19,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:02:19,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:02:19,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:02:19,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:02:19,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:02:19,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:02:19,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:02:19,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:02:19,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:02:19,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:02:19,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:02:19,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:02:19,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:02:19,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:02:19,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:02:19,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:02:19,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:02:19,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:02:19,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:02:19,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:02:19,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:02:19,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:02:19,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:02:19,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:02:19,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:02:19,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:02:19,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:02:19,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:02:19,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:02:19,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:02:19,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:02:19,721 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:02:19,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:02:19,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:02:19,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:02:19,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:02:19,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:02:19,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:02:19,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:02:19,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:02:19,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:02:19,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:02:19,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:02:19,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:02:19,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:02:19,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:02:19,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:02:19,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:02:19,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2021-11-05 19:02:19,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:02:20,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:02:20,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:02:20,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:02:20,027 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:02:20,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-05 19:02:20,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4c5d1bc/cd9f7de6a5764d8382476763a1857b9d/FLAG10041cca0 [2021-11-05 19:02:20,767 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:02:20,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-05 19:02:20,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4c5d1bc/cd9f7de6a5764d8382476763a1857b9d/FLAG10041cca0 [2021-11-05 19:02:21,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4c5d1bc/cd9f7de6a5764d8382476763a1857b9d [2021-11-05 19:02:21,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:02:21,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:02:21,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:02:21,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:02:21,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:02:21,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:02:21" (1/1) ... [2021-11-05 19:02:21,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b041419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:21, skipping insertion in model container [2021-11-05 19:02:21,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:02:21" (1/1) ... [2021-11-05 19:02:21,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:02:21,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:02:22,223 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-05 19:02:22,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:02:22,281 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:02:22,503 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-05 19:02:22,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:02:22,606 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:02:22,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22 WrapperNode [2021-11-05 19:02:22,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:02:22,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:02:22,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:02:22,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:02:22,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:22,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:22,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:02:22,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:02:22,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:02:22,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:02:22,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:22,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:22,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:22,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:23,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:23,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:23,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:23,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:02:23,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:02:23,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:02:23,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:02:23,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (1/1) ... [2021-11-05 19:02:23,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:02:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:02:23,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 19:02:23,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 19:02:23,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:02:23,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:02:23,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:02:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:02:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:02:23,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:02:33,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:02:33,699 INFO L299 CfgBuilder]: Removed 2182 assume(true) statements. [2021-11-05 19:02:33,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:02:33 BoogieIcfgContainer [2021-11-05 19:02:33,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:02:33,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:02:33,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:02:33,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:02:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:02:21" (1/3) ... [2021-11-05 19:02:33,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283533f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:02:33, skipping insertion in model container [2021-11-05 19:02:33,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:22" (2/3) ... [2021-11-05 19:02:33,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283533f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:02:33, skipping insertion in model container [2021-11-05 19:02:33,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:02:33" (3/3) ... [2021-11-05 19:02:33,706 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-05 19:02:33,709 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:02:33,709 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-05 19:02:33,747 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:02:33,756 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 19:02:33,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-05 19:02:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 1923 states, 1914 states have (on average 1.3834900731452455) internal successors, (2648), 1922 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:33,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 19:02:33,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:33,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:33,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:33,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1801920152, now seen corresponding path program 1 times [2021-11-05 19:02:33,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:33,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658157275] [2021-11-05 19:02:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:33,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:34,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:34,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658157275] [2021-11-05 19:02:34,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658157275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:34,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:34,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:02:34,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461926297] [2021-11-05 19:02:34,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:34,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:02:34,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:02:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:02:34,386 INFO L87 Difference]: Start difference. First operand has 1923 states, 1914 states have (on average 1.3834900731452455) internal successors, (2648), 1922 states have internal predecessors, (2648), 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 37.5) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:34,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:34,463 INFO L93 Difference]: Finished difference Result 3842 states and 5291 transitions. [2021-11-05 19:02:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:02:34,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 75 [2021-11-05 19:02:34,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:34,481 INFO L225 Difference]: With dead ends: 3842 [2021-11-05 19:02:34,481 INFO L226 Difference]: Without dead ends: 1896 [2021-11-05 19:02:34,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:02:34,495 INFO L933 BasicCegarLoop]: 2619 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:34,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 4.88ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:02:34,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2021-11-05 19:02:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1896. [2021-11-05 19:02:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1888 states have (on average 1.3606991525423728) internal successors, (2569), 1895 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2569 transitions. [2021-11-05 19:02:34,597 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2569 transitions. Word has length 75 [2021-11-05 19:02:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 1896 states and 2569 transitions. [2021-11-05 19:02:34,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2569 transitions. [2021-11-05 19:02:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 19:02:34,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:34,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:34,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:02:34,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -582973410, now seen corresponding path program 1 times [2021-11-05 19:02:34,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:34,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040875963] [2021-11-05 19:02:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:34,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:34,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:34,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040875963] [2021-11-05 19:02:34,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040875963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:34,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:34,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:02:34,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904484300] [2021-11-05 19:02:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:34,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:02:34,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:02:34,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:02:34,872 INFO L87 Difference]: Start difference. First operand 1896 states and 2569 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:37,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:02:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:37,720 INFO L93 Difference]: Finished difference Result 6930 states and 9407 transitions. [2021-11-05 19:02:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 19:02:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2021-11-05 19:02:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:37,736 INFO L225 Difference]: With dead ends: 6930 [2021-11-05 19:02:37,737 INFO L226 Difference]: Without dead ends: 5061 [2021-11-05 19:02:37,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 111.61ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-05 19:02:37,745 INFO L933 BasicCegarLoop]: 2575 mSDtfsCounter, 11034 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2271.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11034 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.45ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2425.37ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:37,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11034 Valid, 9873 Invalid, 119 Unknown, 0 Unchecked, 33.45ms Time], IncrementalHoareTripleChecker [32 Valid, 86 Invalid, 1 Unknown, 0 Unchecked, 2425.37ms Time] [2021-11-05 19:02:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5061 states. [2021-11-05 19:02:37,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5061 to 5008. [2021-11-05 19:02:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 5000 states have (on average 1.3612) internal successors, (6806), 5007 states have internal predecessors, (6806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6806 transitions. [2021-11-05 19:02:37,915 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6806 transitions. Word has length 75 [2021-11-05 19:02:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:37,916 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 6806 transitions. [2021-11-05 19:02:37,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6806 transitions. [2021-11-05 19:02:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 19:02:37,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:37,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:37,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:02:37,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:37,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash 335286776, now seen corresponding path program 1 times [2021-11-05 19:02:37,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:37,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113250926] [2021-11-05 19:02:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:37,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:38,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:38,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113250926] [2021-11-05 19:02:38,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113250926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:38,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:38,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:02:38,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701665025] [2021-11-05 19:02:38,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:38,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:02:38,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:38,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:02:38,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:02:38,103 INFO L87 Difference]: Start difference. First operand 5008 states and 6806 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:40,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:02:40,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:40,785 INFO L93 Difference]: Finished difference Result 18243 states and 24786 transitions. [2021-11-05 19:02:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 19:02:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 19:02:40,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:40,820 INFO L225 Difference]: With dead ends: 18243 [2021-11-05 19:02:40,820 INFO L226 Difference]: Without dead ends: 13262 [2021-11-05 19:02:40,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 47.57ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-05 19:02:40,831 INFO L933 BasicCegarLoop]: 2557 mSDtfsCounter, 11046 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2108.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11046 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.23ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2232.07ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:40,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11046 Valid, 9809 Invalid, 115 Unknown, 0 Unchecked, 17.23ms Time], IncrementalHoareTripleChecker [32 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 2232.07ms Time] [2021-11-05 19:02:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13262 states. [2021-11-05 19:02:41,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13262 to 13166. [2021-11-05 19:02:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 13158 states have (on average 1.3589451284389724) internal successors, (17881), 13165 states have internal predecessors, (17881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 17881 transitions. [2021-11-05 19:02:41,165 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 17881 transitions. Word has length 76 [2021-11-05 19:02:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:41,166 INFO L470 AbstractCegarLoop]: Abstraction has 13166 states and 17881 transitions. [2021-11-05 19:02:41,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 17881 transitions. [2021-11-05 19:02:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-05 19:02:41,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:41,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:41,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:02:41,171 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1658364106, now seen corresponding path program 1 times [2021-11-05 19:02:41,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:41,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126830064] [2021-11-05 19:02:41,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:41,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:41,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:41,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126830064] [2021-11-05 19:02:41,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126830064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:41,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:41,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:02:41,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012111631] [2021-11-05 19:02:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:41,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:02:41,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:02:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:02:41,346 INFO L87 Difference]: Start difference. First operand 13166 states and 17881 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:43,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:02:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:44,593 INFO L93 Difference]: Finished difference Result 47461 states and 64364 transitions. [2021-11-05 19:02:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 19:02:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 77 [2021-11-05 19:02:44,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:44,675 INFO L225 Difference]: With dead ends: 47461 [2021-11-05 19:02:44,675 INFO L226 Difference]: Without dead ends: 34322 [2021-11-05 19:02:44,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 43.88ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-05 19:02:44,700 INFO L933 BasicCegarLoop]: 2556 mSDtfsCounter, 13586 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2108.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13586 SdHoareTripleChecker+Valid, 7678 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.44ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2257.02ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:44,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13586 Valid, 7678 Invalid, 115 Unknown, 0 Unchecked, 17.44ms Time], IncrementalHoareTripleChecker [37 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2257.02ms Time] [2021-11-05 19:02:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34322 states. [2021-11-05 19:02:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34322 to 34112. [2021-11-05 19:02:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34112 states, 34104 states have (on average 1.3550316678395495) internal successors, (46212), 34111 states have internal predecessors, (46212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34112 states to 34112 states and 46212 transitions. [2021-11-05 19:02:45,825 INFO L78 Accepts]: Start accepts. Automaton has 34112 states and 46212 transitions. Word has length 77 [2021-11-05 19:02:45,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:45,825 INFO L470 AbstractCegarLoop]: Abstraction has 34112 states and 46212 transitions. [2021-11-05 19:02:45,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 34112 states and 46212 transitions. [2021-11-05 19:02:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 19:02:45,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:45,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:45,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:02:45,829 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:45,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1357915664, now seen corresponding path program 1 times [2021-11-05 19:02:45,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:45,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25444640] [2021-11-05 19:02:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:45,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:45,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:45,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25444640] [2021-11-05 19:02:45,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25444640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:45,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:45,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:02:45,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284079111] [2021-11-05 19:02:45,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:45,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:02:45,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:02:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:02:45,996 INFO L87 Difference]: Start difference. First operand 34112 states and 46212 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:48,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:02:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:50,399 INFO L93 Difference]: Finished difference Result 120981 states and 163484 transitions. [2021-11-05 19:02:50,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 19:02:50,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2021-11-05 19:02:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:50,592 INFO L225 Difference]: With dead ends: 120981 [2021-11-05 19:02:50,592 INFO L226 Difference]: Without dead ends: 86896 [2021-11-05 19:02:50,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.67ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-05 19:02:50,653 INFO L933 BasicCegarLoop]: 2549 mSDtfsCounter, 13597 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2110.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13597 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.76ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2236.25ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:50,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13597 Valid, 7668 Invalid, 114 Unknown, 0 Unchecked, 13.76ms Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2236.25ms Time] [2021-11-05 19:02:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86896 states. [2021-11-05 19:02:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86896 to 86374. [2021-11-05 19:02:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86374 states, 86366 states have (on average 1.3494083319824932) internal successors, (116543), 86373 states have internal predecessors, (116543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:53,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86374 states to 86374 states and 116543 transitions. [2021-11-05 19:02:53,310 INFO L78 Accepts]: Start accepts. Automaton has 86374 states and 116543 transitions. Word has length 78 [2021-11-05 19:02:53,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:53,310 INFO L470 AbstractCegarLoop]: Abstraction has 86374 states and 116543 transitions. [2021-11-05 19:02:53,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 86374 states and 116543 transitions. [2021-11-05 19:02:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-05 19:02:53,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:53,355 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:53,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:02:53,356 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:02:53,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:53,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1692772988, now seen corresponding path program 1 times [2021-11-05 19:02:53,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:53,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934501703] [2021-11-05 19:02:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:53,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:53,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:53,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934501703] [2021-11-05 19:02:53,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934501703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:53,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:53,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:53,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930986843] [2021-11-05 19:02:53,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:53,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:53,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:53,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:53,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:53,557 INFO L87 Difference]: Start difference. First operand 86374 states and 116543 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:57,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:57,724 INFO L93 Difference]: Finished difference Result 218745 states and 296786 transitions. [2021-11-05 19:02:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:57,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 141 [2021-11-05 19:02:57,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:58,027 INFO L225 Difference]: With dead ends: 218745 [2021-11-05 19:02:58,030 INFO L226 Difference]: Without dead ends: 132398 [2021-11-05 19:02:58,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:58,188 INFO L933 BasicCegarLoop]: 4204 mSDtfsCounter, 1907 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 6655 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.90ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.52ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:58,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 6655 Invalid, 86 Unknown, 0 Unchecked, 19.90ms Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 168.52ms Time] [2021-11-05 19:02:58,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132398 states. [2021-11-05 19:03:02,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132398 to 130924. [2021-11-05 19:03:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130924 states, 130916 states have (on average 1.3627058571908706) internal successors, (178400), 130923 states have internal predecessors, (178400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:02,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130924 states to 130924 states and 178400 transitions. [2021-11-05 19:03:02,943 INFO L78 Accepts]: Start accepts. Automaton has 130924 states and 178400 transitions. Word has length 141 [2021-11-05 19:03:02,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:03:02,943 INFO L470 AbstractCegarLoop]: Abstraction has 130924 states and 178400 transitions. [2021-11-05 19:03:02,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 130924 states and 178400 transitions. [2021-11-05 19:03:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-05 19:03:02,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:03:02,982 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:03:02,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:03:02,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 19:03:02,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:03:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash 964755318, now seen corresponding path program 1 times [2021-11-05 19:03:02,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:03:02,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599910714] [2021-11-05 19:03:02,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:03:02,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:03:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:03:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 19:03:03,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:03:03,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599910714] [2021-11-05 19:03:03,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599910714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:03:03,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:03:03,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:03:03,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064194194] [2021-11-05 19:03:03,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:03:03,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:03:03,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:03:03,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:03:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:03:03,145 INFO L87 Difference]: Start difference. First operand 130924 states and 178400 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:03:10,361 INFO L93 Difference]: Finished difference Result 370443 states and 505174 transitions. [2021-11-05 19:03:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:03:10,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 194 [2021-11-05 19:03:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:03:11,054 INFO L225 Difference]: With dead ends: 370443 [2021-11-05 19:03:11,054 INFO L226 Difference]: Without dead ends: 239546 [2021-11-05 19:03:11,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:03:11,246 INFO L933 BasicCegarLoop]: 4842 mSDtfsCounter, 2351 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 7365 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.17ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.52ms IncrementalHoareTripleChecker+Time [2021-11-05 19:03:11,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2351 Valid, 7365 Invalid, 20 Unknown, 0 Unchecked, 6.17ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 96.52ms Time] [2021-11-05 19:03:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239546 states.