./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:11:05,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:11:05,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:11:05,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:11:05,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:11:05,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:11:05,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:11:05,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:11:05,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:11:05,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:11:05,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:11:05,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:11:05,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:11:05,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:11:05,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:11:05,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:11:05,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:11:05,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:11:05,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:11:05,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:11:05,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:11:05,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:11:05,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:11:05,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:11:05,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:11:05,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:11:05,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:11:05,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:11:05,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:11:05,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:11:05,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:11:05,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:11:05,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:11:05,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:11:05,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:11:05,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:11:05,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:11:05,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:11:05,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:11:05,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:11:05,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:11:05,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:11:05,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:11:05,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:11:05,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:11:05,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:11:05,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:11:05,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:11:05,640 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:11:05,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:11:05,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:11:05,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:11:05,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:11:05,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:11:05,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:11:05,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:11:05,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:11:05,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:11:05,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:11:05,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:11:05,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:11:05,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2021-11-05 22:11:05,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:11:05,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:11:05,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:11:05,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:11:05,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:11:05,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-05 22:11:05,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4625d00d1/7811021e9c27489cacf574cfb8d2d069/FLAGdd24e33b2 [2021-11-05 22:11:06,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:11:06,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-05 22:11:06,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4625d00d1/7811021e9c27489cacf574cfb8d2d069/FLAGdd24e33b2 [2021-11-05 22:11:06,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4625d00d1/7811021e9c27489cacf574cfb8d2d069 [2021-11-05 22:11:06,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:11:06,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:11:06,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:11:06,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:11:06,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:11:06,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:11:06" (1/1) ... [2021-11-05 22:11:06,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e107025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:06, skipping insertion in model container [2021-11-05 22:11:06,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:11:06" (1/1) ... [2021-11-05 22:11:06,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:11:06,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:11:08,357 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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-05 22:11:08,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:11:08,423 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:11:08,706 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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-05 22:11:08,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:11:08,895 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:11:08,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08 WrapperNode [2021-11-05 22:11:08,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:11:08,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:11:08,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:11:08,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:11:08,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:08,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:09,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:11:09,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:11:09,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:11:09,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:11:09,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:09,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:09,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:10,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:10,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:10,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:10,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:11:10,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:11:10,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:11:10,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:11:10,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (1/1) ... [2021-11-05 22:11:10,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:11:10,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:11:10,877 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 22:11:10,911 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 22:11:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2021-11-05 22:11:10,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2021-11-05 22:11:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2021-11-05 22:11:10,922 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2021-11-05 22:11:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:11:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 22:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2021-11-05 22:11:10,923 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2021-11-05 22:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2021-11-05 22:11:10,923 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2021-11-05 22:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-05 22:11:10,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-05 22:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:11:10,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:11:10,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2021-11-05 22:11:10,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:11:23,875 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 22:11:23,875 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 22:11:23,875 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 22:11:23,875 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 22:11:23,876 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:11:26,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:11:26,358 INFO L299 CfgBuilder]: Removed 6721 assume(true) statements. [2021-11-05 22:11:26,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:11:26 BoogieIcfgContainer [2021-11-05 22:11:26,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:11:26,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:11:26,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:11:26,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:11:26,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:11:06" (1/3) ... [2021-11-05 22:11:26,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bff7962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:11:26, skipping insertion in model container [2021-11-05 22:11:26,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:11:08" (2/3) ... [2021-11-05 22:11:26,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bff7962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:11:26, skipping insertion in model container [2021-11-05 22:11:26,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:11:26" (3/3) ... [2021-11-05 22:11:26,368 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-05 22:11:26,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:11:26,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-05 22:11:26,421 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:11:26,425 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 22:11:26,426 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-05 22:11:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 5893 states, 5853 states have (on average 1.3135144370408338) internal successors, (7688), 5860 states have internal predecessors, (7688), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-05 22:11:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 22:11:26,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:26,538 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] [2021-11-05 22:11:26,539 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1130171376, now seen corresponding path program 1 times [2021-11-05 22:11:26,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:26,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775807354] [2021-11-05 22:11:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:27,049 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 22:11:27,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:27,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775807354] [2021-11-05 22:11:27,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775807354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:27,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:27,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:27,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061816780] [2021-11-05 22:11:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:27,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:11:27,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:11:27,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:27,081 INFO L87 Difference]: Start difference. First operand has 5893 states, 5853 states have (on average 1.3135144370408338) internal successors, (7688), 5860 states have internal predecessors, (7688), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 22:11:29,127 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 22:11:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:29,877 INFO L93 Difference]: Finished difference Result 17375 states and 22875 transitions. [2021-11-05 22:11:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:11:29,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-05 22:11:29,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:29,946 INFO L225 Difference]: With dead ends: 17375 [2021-11-05 22:11:29,946 INFO L226 Difference]: Without dead ends: 11341 [2021-11-05 22:11:30,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:30,011 INFO L933 BasicCegarLoop]: 7673 mSDtfsCounter, 7442 mSDsluCounter, 7608 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2043.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7442 SdHoareTripleChecker+Valid, 15281 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.16ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2171.07ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:30,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7442 Valid, 15281 Invalid, 14 Unknown, 0 Unchecked, 35.16ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2171.07ms Time] [2021-11-05 22:11:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-11-05 22:11:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 11341. [2021-11-05 22:11:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11341 states, 11269 states have (on average 1.2827225130890052) internal successors, (14455), 11276 states have internal predecessors, (14455), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-05 22:11:30,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11341 states to 11341 states and 14555 transitions. [2021-11-05 22:11:30,340 INFO L78 Accepts]: Start accepts. Automaton has 11341 states and 14555 transitions. Word has length 48 [2021-11-05 22:11:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:30,341 INFO L470 AbstractCegarLoop]: Abstraction has 11341 states and 14555 transitions. [2021-11-05 22:11:30,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 22:11:30,342 INFO L276 IsEmpty]: Start isEmpty. Operand 11341 states and 14555 transitions. [2021-11-05 22:11:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 22:11:30,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:30,355 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:11:30,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:11:30,356 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 980654295, now seen corresponding path program 1 times [2021-11-05 22:11:30,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:30,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111480980] [2021-11-05 22:11:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:30,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:11:30,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:30,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111480980] [2021-11-05 22:11:30,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111480980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:30,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:30,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:30,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749920985] [2021-11-05 22:11:30,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:30,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:11:30,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:30,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:11:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:30,565 INFO L87 Difference]: Start difference. First operand 11341 states and 14555 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 22:11:32,605 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 22:11:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:33,142 INFO L93 Difference]: Finished difference Result 22588 states and 29006 transitions. [2021-11-05 22:11:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:11:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-05 22:11:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:33,228 INFO L225 Difference]: With dead ends: 22588 [2021-11-05 22:11:33,229 INFO L226 Difference]: Without dead ends: 16931 [2021-11-05 22:11:33,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:33,259 INFO L933 BasicCegarLoop]: 14551 mSDtfsCounter, 7209 mSDsluCounter, 7330 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2046.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7209 SdHoareTripleChecker+Valid, 21881 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.95ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2167.18ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:33,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7209 Valid, 21881 Invalid, 10 Unknown, 0 Unchecked, 19.95ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2167.18ms Time] [2021-11-05 22:11:33,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16931 states. [2021-11-05 22:11:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16931 to 16931. [2021-11-05 22:11:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16931 states, 16827 states have (on average 1.283354133238248) internal successors, (21595), 16834 states have internal predecessors, (21595), 75 states have call successors, (75), 21 states have call predecessors, (75), 21 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-05 22:11:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16931 states to 16931 states and 21745 transitions. [2021-11-05 22:11:33,620 INFO L78 Accepts]: Start accepts. Automaton has 16931 states and 21745 transitions. Word has length 73 [2021-11-05 22:11:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:33,620 INFO L470 AbstractCegarLoop]: Abstraction has 16931 states and 21745 transitions. [2021-11-05 22:11:33,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 22:11:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 16931 states and 21745 transitions. [2021-11-05 22:11:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 22:11:33,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:33,625 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:11:33,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:11:33,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:33,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:33,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1238819733, now seen corresponding path program 1 times [2021-11-05 22:11:33,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:33,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76619571] [2021-11-05 22:11:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:33,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 22:11:33,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:33,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76619571] [2021-11-05 22:11:33,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76619571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:33,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:33,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:33,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011625418] [2021-11-05 22:11:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:33,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:11:33,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:11:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:11:33,907 INFO L87 Difference]: Start difference. First operand 16931 states and 21745 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 22:11:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:34,190 INFO L93 Difference]: Finished difference Result 16931 states and 21745 transitions. [2021-11-05 22:11:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:11:34,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 73 [2021-11-05 22:11:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:34,268 INFO L225 Difference]: With dead ends: 16931 [2021-11-05 22:11:34,268 INFO L226 Difference]: Without dead ends: 16927 [2021-11-05 22:11:34,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:11:34,285 INFO L933 BasicCegarLoop]: 7355 mSDtfsCounter, 7296 mSDsluCounter, 7339 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7296 SdHoareTripleChecker+Valid, 14694 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.30ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.83ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:34,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7296 Valid, 14694 Invalid, 22 Unknown, 0 Unchecked, 17.30ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 20.83ms Time] [2021-11-05 22:11:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16927 states. [2021-11-05 22:11:34,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16927 to 16927. [2021-11-05 22:11:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16927 states, 16825 states have (on average 1.2832689450222883) internal successors, (21591), 16830 states have internal predecessors, (21591), 75 states have call successors, (75), 21 states have call predecessors, (75), 21 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-05 22:11:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16927 states to 16927 states and 21741 transitions. [2021-11-05 22:11:34,755 INFO L78 Accepts]: Start accepts. Automaton has 16927 states and 21741 transitions. Word has length 73 [2021-11-05 22:11:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:34,756 INFO L470 AbstractCegarLoop]: Abstraction has 16927 states and 21741 transitions. [2021-11-05 22:11:34,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 22:11:34,756 INFO L276 IsEmpty]: Start isEmpty. Operand 16927 states and 21741 transitions. [2021-11-05 22:11:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 22:11:34,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:34,762 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:11:34,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:11:34,763 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:34,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash 800171192, now seen corresponding path program 1 times [2021-11-05 22:11:34,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:34,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677232789] [2021-11-05 22:11:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:34,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:35,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 22:11:35,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:35,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677232789] [2021-11-05 22:11:35,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677232789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:35,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:35,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:35,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806874846] [2021-11-05 22:11:35,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:35,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:11:35,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:11:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:11:35,033 INFO L87 Difference]: Start difference. First operand 16927 states and 21741 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 22:11:35,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:35,819 INFO L93 Difference]: Finished difference Result 33678 states and 43436 transitions. [2021-11-05 22:11:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 22:11:35,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 22:11:35,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:36,037 INFO L225 Difference]: With dead ends: 33678 [2021-11-05 22:11:36,037 INFO L226 Difference]: Without dead ends: 33674 [2021-11-05 22:11:36,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:11:36,067 INFO L933 BasicCegarLoop]: 8520 mSDtfsCounter, 7301 mSDsluCounter, 15740 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7301 SdHoareTripleChecker+Valid, 24260 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.16ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.76ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:36,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7301 Valid, 24260 Invalid, 52 Unknown, 0 Unchecked, 29.16ms Time], IncrementalHoareTripleChecker [27 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 52.76ms Time] [2021-11-05 22:11:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33674 states. [2021-11-05 22:11:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33674 to 28687. [2021-11-05 22:11:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28687 states, 28489 states have (on average 1.2855137070448244) internal successors, (36623), 28494 states have internal predecessors, (36623), 150 states have call successors, (150), 42 states have call predecessors, (150), 42 states have return successors, (300), 150 states have call predecessors, (300), 150 states have call successors, (300) [2021-11-05 22:11:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28687 states to 28687 states and 37073 transitions. [2021-11-05 22:11:36,943 INFO L78 Accepts]: Start accepts. Automaton has 28687 states and 37073 transitions. Word has length 75 [2021-11-05 22:11:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:36,944 INFO L470 AbstractCegarLoop]: Abstraction has 28687 states and 37073 transitions. [2021-11-05 22:11:36,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 22:11:36,945 INFO L276 IsEmpty]: Start isEmpty. Operand 28687 states and 37073 transitions. [2021-11-05 22:11:36,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-05 22:11:36,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:36,950 INFO L514 BasicCegarLoop]: trace histogram [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, 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 22:11:36,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:11:36,950 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 22:11:36,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:36,951 INFO L85 PathProgramCache]: Analyzing trace with hash 165718619, now seen corresponding path program 1 times [2021-11-05 22:11:36,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:36,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722706693] [2021-11-05 22:11:36,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:36,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 22:11:37,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:37,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722706693] [2021-11-05 22:11:37,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722706693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:37,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:37,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:37,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399811525] [2021-11-05 22:11:37,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:37,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:11:37,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:37,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:11:37,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:11:37,133 INFO L87 Difference]: Start difference. First operand 28687 states and 37073 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 22:11:38,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:38,197 INFO L93 Difference]: Finished difference Result 57213 states and 74415 transitions. [2021-11-05 22:11:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 22:11:38,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 22:11:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:38,475 INFO L225 Difference]: With dead ends: 57213 [2021-11-05 22:11:38,476 INFO L226 Difference]: Without dead ends: 57209 [2021-11-05 22:11:38,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:11:38,534 INFO L933 BasicCegarLoop]: 8605 mSDtfsCounter, 7299 mSDsluCounter, 15829 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7299 SdHoareTripleChecker+Valid, 24434 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.12ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.59ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:38,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7299 Valid, 24434 Invalid, 54 Unknown, 0 Unchecked, 25.12ms Time], IncrementalHoareTripleChecker [27 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 66.59ms Time] [2021-11-05 22:11:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57209 states. [2021-11-05 22:11:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57209 to 52199. [2021-11-05 22:11:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52199 states, 51809 states have (on average 1.287054372792372) internal successors, (66681), 51814 states have internal predecessors, (66681), 300 states have call successors, (300), 84 states have call predecessors, (300), 84 states have return successors, (1050), 300 states have call predecessors, (1050), 300 states have call successors, (1050) [2021-11-05 22:11:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52199 states to 52199 states and 68031 transitions. [2021-11-05 22:11:40,328 INFO L78 Accepts]: Start accepts. Automaton has 52199 states and 68031 transitions. Word has length 77 [2021-11-05 22:11:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:40,328 INFO L470 AbstractCegarLoop]: Abstraction has 52199 states and 68031 transitions. [2021-11-05 22:11:40,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 22:11:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 52199 states and 68031 transitions. [2021-11-05 22:11:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 22:11:40,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:40,337 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 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 22:11:40,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 22:11:40,337 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:40,338 INFO L85 PathProgramCache]: Analyzing trace with hash 342152318, now seen corresponding path program 1 times [2021-11-05 22:11:40,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:40,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446784686] [2021-11-05 22:11:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:40,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:40,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 22:11:40,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:40,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446784686] [2021-11-05 22:11:40,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446784686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:40,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:40,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:40,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535719369] [2021-11-05 22:11:40,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:40,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:11:40,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:40,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:11:40,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:11:40,531 INFO L87 Difference]: Start difference. First operand 52199 states and 68031 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 22:11:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:42,586 INFO L93 Difference]: Finished difference Result 104285 states and 137288 transitions. [2021-11-05 22:11:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 22:11:42,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 79 [2021-11-05 22:11:42,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:43,295 INFO L225 Difference]: With dead ends: 104285 [2021-11-05 22:11:43,296 INFO L226 Difference]: Without dead ends: 104253 [2021-11-05 22:11:43,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:11:43,358 INFO L933 BasicCegarLoop]: 7472 mSDtfsCounter, 7295 mSDsluCounter, 14714 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7295 SdHoareTripleChecker+Valid, 22186 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.16ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.82ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:43,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7295 Valid, 22186 Invalid, 53 Unknown, 0 Unchecked, 28.16ms Time], IncrementalHoareTripleChecker [30 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 52.82ms Time] [2021-11-05 22:11:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104253 states. [2021-11-05 22:11:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104253 to 104245. [2021-11-05 22:11:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104245 states, 103471 states have (on average 1.2872882256864242) internal successors, (133197), 103476 states have internal predecessors, (133197), 600 states have call successors, (600), 168 states have call predecessors, (600), 168 states have return successors, (3450), 600 states have call predecessors, (3450), 600 states have call successors, (3450) [2021-11-05 22:11:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104245 states to 104245 states and 137247 transitions. [2021-11-05 22:11:46,573 INFO L78 Accepts]: Start accepts. Automaton has 104245 states and 137247 transitions. Word has length 79 [2021-11-05 22:11:46,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:11:46,573 INFO L470 AbstractCegarLoop]: Abstraction has 104245 states and 137247 transitions. [2021-11-05 22:11:46,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 22:11:46,573 INFO L276 IsEmpty]: Start isEmpty. Operand 104245 states and 137247 transitions. [2021-11-05 22:11:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-05 22:11:46,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:11:46,631 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:46,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 22:11:46,631 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-05 22:11:46,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:11:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash 327484887, now seen corresponding path program 1 times [2021-11-05 22:11:46,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:11:46,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296643190] [2021-11-05 22:11:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:11:46,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:11:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:11:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 22:11:46,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:11:46,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296643190] [2021-11-05 22:11:46,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296643190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:11:46,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:11:46,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:11:46,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689949137] [2021-11-05 22:11:46,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:11:46,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:11:46,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:11:46,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:11:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:46,774 INFO L87 Difference]: Start difference. First operand 104245 states and 137247 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:11:48,807 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 22:11:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:11:54,159 INFO L93 Difference]: Finished difference Result 295664 states and 388024 transitions. [2021-11-05 22:11:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:11:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-05 22:11:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:11:55,380 INFO L225 Difference]: With dead ends: 295664 [2021-11-05 22:11:55,380 INFO L226 Difference]: Without dead ends: 191511 [2021-11-05 22:11:56,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:11:56,363 INFO L933 BasicCegarLoop]: 10509 mSDtfsCounter, 6233 mSDsluCounter, 7264 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2370.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6233 SdHoareTripleChecker+Valid, 17773 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.12ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2526.74ms IncrementalHoareTripleChecker+Time [2021-11-05 22:11:56,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6233 Valid, 17773 Invalid, 153 Unknown, 0 Unchecked, 17.12ms Time], IncrementalHoareTripleChecker [31 Valid, 121 Invalid, 1 Unknown, 0 Unchecked, 2526.74ms Time] [2021-11-05 22:11:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191511 states.