./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:51:51,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:51:51,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:51:51,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:51:51,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:51:51,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:51:51,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:51:51,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:51:51,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:51:51,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:51:51,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:51:51,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:51:51,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:51:51,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:51:51,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:51:51,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:51:51,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:51:51,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:51:51,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:51:51,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:51:51,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:51:51,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:51:51,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:51:51,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:51:51,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:51:51,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:51:51,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:51:51,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:51:51,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:51:51,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:51:51,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:51:51,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:51:51,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:51:51,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:51:51,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:51:51,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:51:51,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:51:51,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:51:51,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:51:51,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:51:51,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:51:51,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:51:51,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:51:51,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:51:51,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:51:51,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:51:51,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:51:51,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:51:51,222 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:51:51,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:51:51,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:51:51,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:51:51,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:51:51,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:51:51,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:51:51,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:51:51,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:51:51,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:51:51,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:51:51,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:51:51,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:51:51,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2021-11-05 20:51:51,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:51:51,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:51:51,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:51:51,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:51:51,516 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:51:51,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-05 20:51:51,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283e9bb53/d6fc44641a7b486282548778752901dd/FLAG98726bcdc [2021-11-05 20:51:52,276 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:51:52,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-05 20:51:52,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283e9bb53/d6fc44641a7b486282548778752901dd/FLAG98726bcdc [2021-11-05 20:51:52,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283e9bb53/d6fc44641a7b486282548778752901dd [2021-11-05 20:51:52,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:51:52,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:51:52,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:51:52,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:51:52,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:51:52,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:51:52" (1/1) ... [2021-11-05 20:51:52,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724c4494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:52, skipping insertion in model container [2021-11-05 20:51:52,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:51:52" (1/1) ... [2021-11-05 20:51:52,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:51:52,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:51:54,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-05 20:51:54,341 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-05 20:51:54,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-05 20:51:54,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-05 20:51:54,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:51:54,402 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:51:54,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-05 20:51:54,684 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-05 20:51:54,684 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-05 20:51:54,684 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-05 20:51:54,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:51:54,835 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:51:54,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54 WrapperNode [2021-11-05 20:51:54,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:51:54,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:51:54,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:51:54,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:51:54,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:51:54,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:01,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:52:01,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:52:01,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:52:01,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:52:01,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:01,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:01,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:01,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:02,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:02,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:03,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:03,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:52:03,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:52:03,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:52:03,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:52:03,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (1/1) ... [2021-11-05 20:52:03,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:52:03,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:52:03,676 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 20:52:03,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 20:52:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-05 20:52:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:52:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:52:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:52:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:52:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:52:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:52:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:52:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:52:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:52:35,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:52:35,690 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:52:35,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:52:35,691 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:52:35,695 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:52:35,696 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:52:35,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:52:35,762 INFO L299 CfgBuilder]: Removed 36462 assume(true) statements. [2021-11-05 20:52:35,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:52:35 BoogieIcfgContainer [2021-11-05 20:52:35,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:52:35,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:52:35,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:52:35,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:52:35,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:51:52" (1/3) ... [2021-11-05 20:52:35,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f17d6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:52:35, skipping insertion in model container [2021-11-05 20:52:35,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:54" (2/3) ... [2021-11-05 20:52:35,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f17d6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:52:35, skipping insertion in model container [2021-11-05 20:52:35,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:52:35" (3/3) ... [2021-11-05 20:52:35,790 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-05 20:52:35,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:52:35,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-11-05 20:52:35,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:52:35,887 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 20:52:35,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-11-05 20:52:36,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 23551 states, 23473 states have (on average 1.2085374685809227) internal successors, (28368), 23550 states have internal predecessors, (28368), 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 20:52:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 20:52:36,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:36,116 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] [2021-11-05 20:52:36,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:52:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1204676413, now seen corresponding path program 1 times [2021-11-05 20:52:36,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:36,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477947623] [2021-11-05 20:52:36,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:36,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:36,661 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 20:52:36,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:36,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477947623] [2021-11-05 20:52:36,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477947623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:36,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:36,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:36,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000683264] [2021-11-05 20:52:36,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:36,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:36,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:36,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:36,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:36,768 INFO L87 Difference]: Start difference. First operand has 23551 states, 23473 states have (on average 1.2085374685809227) internal successors, (28368), 23550 states have internal predecessors, (28368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 20:52:38,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:40,043 INFO L93 Difference]: Finished difference Result 50670 states and 61209 transitions. [2021-11-05 20:52:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-05 20:52:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:40,151 INFO L225 Difference]: With dead ends: 50670 [2021-11-05 20:52:40,151 INFO L226 Difference]: Without dead ends: 26908 [2021-11-05 20:52:40,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:40,196 INFO L933 BasicCegarLoop]: 28229 mSDtfsCounter, 25524 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2127.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25524 SdHoareTripleChecker+Valid, 35371 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.42ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2218.79ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:40,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25524 Valid, 35371 Invalid, 70 Unknown, 0 Unchecked, 69.42ms Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2218.79ms Time] [2021-11-05 20:52:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26908 states. [2021-11-05 20:52:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26908 to 26254. [2021-11-05 20:52:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26254 states, 26176 states have (on average 1.2003361858190709) internal successors, (31420), 26253 states have internal predecessors, (31420), 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 20:52:40,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26254 states to 26254 states and 31420 transitions. [2021-11-05 20:52:40,837 INFO L78 Accepts]: Start accepts. Automaton has 26254 states and 31420 transitions. Word has length 41 [2021-11-05 20:52:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:40,837 INFO L470 AbstractCegarLoop]: Abstraction has 26254 states and 31420 transitions. [2021-11-05 20:52:40,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 20:52:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand 26254 states and 31420 transitions. [2021-11-05 20:52:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 20:52:40,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:40,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:40,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:52:40,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:52:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash -201446684, now seen corresponding path program 1 times [2021-11-05 20:52:40,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:40,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846996751] [2021-11-05 20:52:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:40,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:41,108 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 20:52:41,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:41,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846996751] [2021-11-05 20:52:41,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846996751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:41,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:41,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:41,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135715086] [2021-11-05 20:52:41,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:41,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:41,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:41,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:41,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:41,115 INFO L87 Difference]: Start difference. First operand 26254 states and 31420 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:43,142 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 20:52:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:44,120 INFO L93 Difference]: Finished difference Result 78372 states and 93847 transitions. [2021-11-05 20:52:44,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:44,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-05 20:52:44,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:44,357 INFO L225 Difference]: With dead ends: 78372 [2021-11-05 20:52:44,357 INFO L226 Difference]: Without dead ends: 52186 [2021-11-05 20:52:44,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:44,397 INFO L933 BasicCegarLoop]: 27870 mSDtfsCounter, 27599 mSDsluCounter, 27828 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2047.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27599 SdHoareTripleChecker+Valid, 55698 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.98ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2140.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:44,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27599 Valid, 55698 Invalid, 34 Unknown, 0 Unchecked, 53.98ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2140.06ms Time] [2021-11-05 20:52:44,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52186 states. [2021-11-05 20:52:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52186 to 52108. [2021-11-05 20:52:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52108 states, 52030 states have (on average 1.200269075533346) internal successors, (62450), 52107 states have internal predecessors, (62450), 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 20:52:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52108 states to 52108 states and 62450 transitions. [2021-11-05 20:52:45,573 INFO L78 Accepts]: Start accepts. Automaton has 52108 states and 62450 transitions. Word has length 43 [2021-11-05 20:52:45,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:45,574 INFO L470 AbstractCegarLoop]: Abstraction has 52108 states and 62450 transitions. [2021-11-05 20:52:45,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 52108 states and 62450 transitions. [2021-11-05 20:52:45,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 20:52:45,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:45,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:45,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:52:45,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:52:45,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:45,582 INFO L85 PathProgramCache]: Analyzing trace with hash 933455554, now seen corresponding path program 1 times [2021-11-05 20:52:45,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:45,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111580849] [2021-11-05 20:52:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:45,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:45,745 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 20:52:45,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:45,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111580849] [2021-11-05 20:52:45,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111580849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:45,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:45,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:45,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974289492] [2021-11-05 20:52:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:45,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:45,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:45,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:45,751 INFO L87 Difference]: Start difference. First operand 52108 states and 62450 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:47,778 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 20:52:49,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:49,888 INFO L93 Difference]: Finished difference Result 149636 states and 179286 transitions. [2021-11-05 20:52:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:49,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-05 20:52:49,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:50,125 INFO L225 Difference]: With dead ends: 149636 [2021-11-05 20:52:50,125 INFO L226 Difference]: Without dead ends: 97596 [2021-11-05 20:52:50,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:50,225 INFO L933 BasicCegarLoop]: 27859 mSDtfsCounter, 24405 mSDsluCounter, 27833 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2130.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24405 SdHoareTripleChecker+Valid, 55692 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.16ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2269.09ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:50,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24405 Valid, 55692 Invalid, 63 Unknown, 0 Unchecked, 58.16ms Time], IncrementalHoareTripleChecker [19 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2269.09ms Time] [2021-11-05 20:52:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97596 states. [2021-11-05 20:52:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97596 to 97256. [2021-11-05 20:52:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97256 states, 97178 states have (on average 1.1998394698388524) internal successors, (116598), 97255 states have internal predecessors, (116598), 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 20:52:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97256 states to 97256 states and 116598 transitions. [2021-11-05 20:52:52,507 INFO L78 Accepts]: Start accepts. Automaton has 97256 states and 116598 transitions. Word has length 43 [2021-11-05 20:52:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:52,507 INFO L470 AbstractCegarLoop]: Abstraction has 97256 states and 116598 transitions. [2021-11-05 20:52:52,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:52,508 INFO L276 IsEmpty]: Start isEmpty. Operand 97256 states and 116598 transitions. [2021-11-05 20:52:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 20:52:52,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:52,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:52:52,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:52:52,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:52:52,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:52,510 INFO L85 PathProgramCache]: Analyzing trace with hash -838052200, now seen corresponding path program 1 times [2021-11-05 20:52:52,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:52,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587063249] [2021-11-05 20:52:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:52,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:52,610 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 20:52:52,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:52,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587063249] [2021-11-05 20:52:52,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587063249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:52,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:52,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:52,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007598149] [2021-11-05 20:52:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:52,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:52,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:52,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:52,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:52,612 INFO L87 Difference]: Start difference. First operand 97256 states and 116598 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:54,640 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 20:52:58,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:58,636 INFO L93 Difference]: Finished difference Result 273694 states and 328183 transitions. [2021-11-05 20:52:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:58,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-05 20:52:58,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:59,052 INFO L225 Difference]: With dead ends: 273694 [2021-11-05 20:52:59,053 INFO L226 Difference]: Without dead ends: 176506 [2021-11-05 20:52:59,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:59,227 INFO L933 BasicCegarLoop]: 27867 mSDtfsCounter, 23111 mSDsluCounter, 27773 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2093.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23111 SdHoareTripleChecker+Valid, 55640 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.52ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2245.69ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:59,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23111 Valid, 55640 Invalid, 68 Unknown, 0 Unchecked, 43.52ms Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 2245.69ms Time] [2021-11-05 20:52:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176506 states. [2021-11-05 20:53:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176506 to 175398. [2021-11-05 20:53:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175398 states, 175320 states have (on average 1.199783253479352) internal successors, (210346), 175397 states have internal predecessors, (210346), 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 20:53:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175398 states to 175398 states and 210346 transitions. [2021-11-05 20:53:03,615 INFO L78 Accepts]: Start accepts. Automaton has 175398 states and 210346 transitions. Word has length 44 [2021-11-05 20:53:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:03,616 INFO L470 AbstractCegarLoop]: Abstraction has 175398 states and 210346 transitions. [2021-11-05 20:53:03,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 175398 states and 210346 transitions. [2021-11-05 20:53:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 20:53:03,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:03,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:03,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:53:03,617 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:53:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -286827323, now seen corresponding path program 1 times [2021-11-05 20:53:03,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:03,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613982914] [2021-11-05 20:53:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:03,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:03,710 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 20:53:03,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:03,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613982914] [2021-11-05 20:53:03,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613982914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:03,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:03,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:03,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444255245] [2021-11-05 20:53:03,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:03,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:53:03,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:03,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:53:03,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:03,712 INFO L87 Difference]: Start difference. First operand 175398 states and 210346 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:05,740 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 20:53:09,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:53:09,436 INFO L93 Difference]: Finished difference Result 302269 states and 362520 transitions. [2021-11-05 20:53:09,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:53:09,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-05 20:53:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:53:09,718 INFO L225 Difference]: With dead ends: 302269 [2021-11-05 20:53:09,718 INFO L226 Difference]: Without dead ends: 126939 [2021-11-05 20:53:09,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:09,970 INFO L933 BasicCegarLoop]: 35907 mSDtfsCounter, 13719 mSDsluCounter, 27705 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2099.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13719 SdHoareTripleChecker+Valid, 63612 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.54ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2242.69ms IncrementalHoareTripleChecker+Time [2021-11-05 20:53:09,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13719 Valid, 63612 Invalid, 100 Unknown, 0 Unchecked, 41.54ms Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 2242.69ms Time] [2021-11-05 20:53:10,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126939 states. [2021-11-05 20:53:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126939 to 126803. [2021-11-05 20:53:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126803 states, 126725 states have (on average 1.1993213651607812) internal successors, (151984), 126802 states have internal predecessors, (151984), 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 20:53:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126803 states to 126803 states and 151984 transitions. [2021-11-05 20:53:13,583 INFO L78 Accepts]: Start accepts. Automaton has 126803 states and 151984 transitions. Word has length 45 [2021-11-05 20:53:13,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:53:13,583 INFO L470 AbstractCegarLoop]: Abstraction has 126803 states and 151984 transitions. [2021-11-05 20:53:13,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:53:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 126803 states and 151984 transitions. [2021-11-05 20:53:13,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 20:53:13,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:53:13,585 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:53:13,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:53:13,586 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-05 20:53:13,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:53:13,586 INFO L85 PathProgramCache]: Analyzing trace with hash -449398312, now seen corresponding path program 1 times [2021-11-05 20:53:13,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:53:13,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383069586] [2021-11-05 20:53:13,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:53:13,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:53:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:53:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:53:13,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:53:13,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383069586] [2021-11-05 20:53:13,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383069586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:53:13,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:53:13,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:53:13,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269620536] [2021-11-05 20:53:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:53:13,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:53:13,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:53:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:53:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:53:13,719 INFO L87 Difference]: Start difference. First operand 126803 states and 151984 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 20:53:15,750 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 []