./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 c36dfa3b 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-c36dfa3 [2021-11-04 12:07:20,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 12:07:20,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 12:07:20,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 12:07:20,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 12:07:20,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 12:07:20,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 12:07:20,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 12:07:20,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 12:07:20,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 12:07:20,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 12:07:20,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 12:07:20,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 12:07:20,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 12:07:20,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 12:07:20,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 12:07:20,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 12:07:20,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 12:07:20,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 12:07:20,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 12:07:20,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 12:07:20,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 12:07:20,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 12:07:20,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 12:07:20,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 12:07:20,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 12:07:20,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 12:07:20,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 12:07:20,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 12:07:20,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 12:07:20,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 12:07:20,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 12:07:20,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 12:07:20,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 12:07:20,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 12:07:20,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 12:07:20,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 12:07:20,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 12:07:20,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 12:07:20,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 12:07:20,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 12:07:20,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 12:07:20,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 12:07:20,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 12:07:20,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 12:07:20,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 12:07:20,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 12:07:20,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 12:07:20,359 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 12:07:20,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 12:07:20,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 12:07:20,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 12:07:20,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 12:07:20,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 12:07:20,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 12:07:20,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 12:07:20,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:07:20,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 12:07:20,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 12:07:20,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 12:07:20,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 12:07:20,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2021-11-04 12:07:20,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 12:07:20,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 12:07:20,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 12:07:20,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 12:07:20,575 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 12:07:20,576 INFO L432 ainManager$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 [2021-11-04 12:07:20,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f3cc14b/626576f8519c4d45b1352a5bcff6536b/FLAG95660e4ed [2021-11-04 12:07:21,246 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 12:07:21,246 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 [2021-11-04 12:07:21,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f3cc14b/626576f8519c4d45b1352a5bcff6536b/FLAG95660e4ed [2021-11-04 12:07:21,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f3cc14b/626576f8519c4d45b1352a5bcff6536b [2021-11-04 12:07:21,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 12:07:21,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 12:07:21,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 12:07:21,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 12:07:21,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 12:07:21,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:07:21" (1/1) ... [2021-11-04 12:07:21,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a902b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:21, skipping insertion in model container [2021-11-04 12:07:21,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:07:21" (1/1) ... [2021-11-04 12:07:21,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 12:07:21,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 12:07:23,052 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] [2021-11-04 12:07:23,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:07:23,088 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 12:07:23,346 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] [2021-11-04 12:07:23,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 12:07:23,490 INFO L208 MainTranslator]: Completed translation [2021-11-04 12:07:23,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23 WrapperNode [2021-11-04 12:07:23,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 12:07:23,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 12:07:23,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 12:07:23,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 12:07:23,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:23,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 12:07:24,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 12:07:24,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 12:07:24,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 12:07:24,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:24,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:25,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 12:07:25,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 12:07:25,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 12:07:25,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 12:07:25,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (1/1) ... [2021-11-04 12:07:25,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 12:07:25,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 12:07:25,316 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) [2021-11-04 12:07:25,391 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 [2021-11-04 12:07:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2021-11-04 12:07:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2021-11-04 12:07:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2021-11-04 12:07:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2021-11-04 12:07:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 12:07:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 12:07:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 12:07:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 12:07:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2021-11-04 12:07:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2021-11-04 12:07:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2021-11-04 12:07:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2021-11-04 12:07:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 12:07:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-04 12:07:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 12:07:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 12:07:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 12:07:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2021-11-04 12:07:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2021-11-04 12:07:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 12:07:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 12:07:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 12:07:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 12:07:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 12:07:29,522 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 12:07:29,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 12:07:29,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 12:07:29,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 12:07:29,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 12:07:29,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 12:07:29,524 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 12:07:29,524 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 12:07:29,524 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 12:07:29,524 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 12:07:29,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 12:07:29,942 INFO L299 CfgBuilder]: Removed 6721 assume(true) statements. [2021-11-04 12:07:29,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:07:29 BoogieIcfgContainer [2021-11-04 12:07:29,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 12:07:29,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 12:07:29,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 12:07:29,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 12:07:29,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 12:07:21" (1/3) ... [2021-11-04 12:07:29,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e30cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:07:29, skipping insertion in model container [2021-11-04 12:07:29,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:07:23" (2/3) ... [2021-11-04 12:07:29,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e30cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:07:29, skipping insertion in model container [2021-11-04 12:07:29,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:07:29" (3/3) ... [2021-11-04 12:07:29,951 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-04 12:07:29,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 12:07:29,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-04 12:07:29,995 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 12:07:29,999 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 [2021-11-04 12:07:29,999 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-04 12:07:30,054 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) [2021-11-04 12:07:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 12:07:30,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:07:30,064 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] [2021-11-04 12:07:30,064 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)] === [2021-11-04 12:07:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:07:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1130171376, now seen corresponding path program 1 times [2021-11-04 12:07:30,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:07:30,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86371310] [2021-11-04 12:07:30,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:07:30,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:07:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:07:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:07:30,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:07:30,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86371310] [2021-11-04 12:07:30,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86371310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:07:30,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:07:30,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:07:30,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546805983] [2021-11-04 12:07:30,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:07:30,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:07:30,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:07:30,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:07:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:07:30,571 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) [2021-11-04 12:07:35,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:07:39,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:07:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:07:53,511 INFO L93 Difference]: Finished difference Result 17375 states and 22877 transitions. [2021-11-04 12:07:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:07:53,514 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 [2021-11-04 12:07:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:07:53,580 INFO L225 Difference]: With dead ends: 17375 [2021-11-04 12:07:53,580 INFO L226 Difference]: Without dead ends: 11341 [2021-11-04 12:07:53,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:07:53,772 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 7440 mSDsluCounter, 7606 mSDsCounter, 0 mSdLazyCounter, 14880 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19545.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7442 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 14885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.85ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14880 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22221.64ms IncrementalHoareTripleChecker+Time [2021-11-04 12:07:53,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7442 Valid, 408 Invalid, 14885 Unknown, 0 Unchecked, 38.85ms Time], IncrementalHoareTripleChecker [3 Valid, 14880 Invalid, 2 Unknown, 0 Unchecked, 22221.64ms Time] [2021-11-04 12:07:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-11-04 12:07:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 11330. [2021-11-04 12:07:54,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11330 states, 11258 states have (on average 1.282732279268076) internal successors, (14441), 11265 states have internal predecessors, (14441), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2021-11-04 12:07:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11330 states to 11330 states and 14543 transitions. [2021-11-04 12:07:54,160 INFO L78 Accepts]: Start accepts. Automaton has 11330 states and 14543 transitions. Word has length 48 [2021-11-04 12:07:54,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:07:54,161 INFO L470 AbstractCegarLoop]: Abstraction has 11330 states and 14543 transitions. [2021-11-04 12:07:54,161 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) [2021-11-04 12:07:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 11330 states and 14543 transitions. [2021-11-04 12:07:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 12:07:54,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:07:54,175 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] [2021-11-04 12:07:54,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 12:07:54,175 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)] === [2021-11-04 12:07:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:07:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash 980654295, now seen corresponding path program 1 times [2021-11-04 12:07:54,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:07:54,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818985624] [2021-11-04 12:07:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:07:54,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:07:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:07:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:07:54,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:07:54,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818985624] [2021-11-04 12:07:54,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818985624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:07:54,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:07:54,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:07:54,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149633550] [2021-11-04 12:07:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:07:54,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:07:54,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:07:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:07:54,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:07:54,369 INFO L87 Difference]: Start difference. First operand 11330 states and 14543 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) [2021-11-04 12:07:58,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:01,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:22,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:08:22,674 INFO L93 Difference]: Finished difference Result 22577 states and 28994 transitions. [2021-11-04 12:08:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:08:22,675 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 [2021-11-04 12:08:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:08:22,781 INFO L225 Difference]: With dead ends: 22577 [2021-11-04 12:08:22,782 INFO L226 Difference]: Without dead ends: 16920 [2021-11-04 12:08:22,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:08:22,824 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 7209 mSDsluCounter, 7330 mSDsCounter, 0 mSdLazyCounter, 21740 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24263.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7209 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 21741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.07ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27695.91ms IncrementalHoareTripleChecker+Time [2021-11-04 12:08:22,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7209 Valid, 150 Invalid, 21741 Unknown, 0 Unchecked, 32.07ms Time], IncrementalHoareTripleChecker [1 Valid, 21740 Invalid, 0 Unknown, 0 Unchecked, 27695.91ms Time] [2021-11-04 12:08:22,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16920 states. [2021-11-04 12:08:23,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16920 to 16920. [2021-11-04 12:08:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16920 states, 16816 states have (on average 1.283361084681256) internal successors, (21581), 16823 states have internal predecessors, (21581), 75 states have call successors, (75), 21 states have call predecessors, (75), 21 states have return successors, (77), 75 states have call predecessors, (77), 75 states have call successors, (77) [2021-11-04 12:08:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16920 states to 16920 states and 21733 transitions. [2021-11-04 12:08:23,278 INFO L78 Accepts]: Start accepts. Automaton has 16920 states and 21733 transitions. Word has length 73 [2021-11-04 12:08:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:08:23,279 INFO L470 AbstractCegarLoop]: Abstraction has 16920 states and 21733 transitions. [2021-11-04 12:08:23,280 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) [2021-11-04 12:08:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16920 states and 21733 transitions. [2021-11-04 12:08:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 12:08:23,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:08:23,285 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] [2021-11-04 12:08:23,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 12:08:23,286 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)] === [2021-11-04 12:08:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:08:23,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1238819733, now seen corresponding path program 1 times [2021-11-04 12:08:23,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:08:23,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697853549] [2021-11-04 12:08:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:08:23,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:08:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:08:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 12:08:23,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:08:23,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697853549] [2021-11-04 12:08:23,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697853549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:08:23,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:08:23,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:08:23,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105129834] [2021-11-04 12:08:23,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:08:23,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 12:08:23,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:08:23,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 12:08:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 12:08:23,564 INFO L87 Difference]: Start difference. First operand 16920 states and 21733 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) [2021-11-04 12:08:25,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:28,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:31,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:35,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:08:52,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:08:52,083 INFO L93 Difference]: Finished difference Result 23718 states and 30417 transitions. [2021-11-04 12:08:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 12:08:52,084 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 [2021-11-04 12:08:52,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:08:52,157 INFO L225 Difference]: With dead ends: 23718 [2021-11-04 12:08:52,157 INFO L226 Difference]: Without dead ends: 23714 [2021-11-04 12:08:52,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 12:08:52,177 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 7295 mSDsluCounter, 11688 mSDsCounter, 0 mSdLazyCounter, 18937 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24533.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7297 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 18944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.96ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18937 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27880.83ms IncrementalHoareTripleChecker+Time [2021-11-04 12:08:52,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7297 Valid, 132 Invalid, 18944 Unknown, 0 Unchecked, 45.96ms Time], IncrementalHoareTripleChecker [6 Valid, 18937 Invalid, 1 Unknown, 0 Unchecked, 27880.83ms Time] [2021-11-04 12:08:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23714 states. [2021-11-04 12:08:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23714 to 23708. [2021-11-04 12:08:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23708 states, 23576 states have (on average 1.2816847641669495) internal successors, (30217), 23581 states have internal predecessors, (30217), 91 states have call successors, (91), 35 states have call predecessors, (91), 35 states have return successors, (97), 91 states have call predecessors, (97), 91 states have call successors, (97) [2021-11-04 12:08:52,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23708 states to 23708 states and 30405 transitions. [2021-11-04 12:08:52,601 INFO L78 Accepts]: Start accepts. Automaton has 23708 states and 30405 transitions. Word has length 73 [2021-11-04 12:08:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:08:52,601 INFO L470 AbstractCegarLoop]: Abstraction has 23708 states and 30405 transitions. [2021-11-04 12:08:52,601 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) [2021-11-04 12:08:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23708 states and 30405 transitions. [2021-11-04 12:08:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 12:08:52,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:08:52,608 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] [2021-11-04 12:08:52,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 12:08:52,608 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)] === [2021-11-04 12:08:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:08:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash 800171192, now seen corresponding path program 1 times [2021-11-04 12:08:52,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:08:52,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942592808] [2021-11-04 12:08:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:08:52,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:08:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:08:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 12:08:52,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:08:52,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942592808] [2021-11-04 12:08:52,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942592808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:08:52,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:08:52,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:08:52,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897237492] [2021-11-04 12:08:52,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:08:52,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 12:08:52,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:08:52,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 12:08:52,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 12:08:52,803 INFO L87 Difference]: Start difference. First operand 23708 states and 30405 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) [2021-11-04 12:08:57,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:09:04,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:09:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:09:26,358 INFO L93 Difference]: Finished difference Result 47226 states and 60794 transitions. [2021-11-04 12:09:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 12:09:26,360 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 [2021-11-04 12:09:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:09:26,547 INFO L225 Difference]: With dead ends: 47226 [2021-11-04 12:09:26,547 INFO L226 Difference]: Without dead ends: 47222 [2021-11-04 12:09:26,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 12:09:26,588 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 7301 mSDsluCounter, 15740 mSDsCounter, 0 mSdLazyCounter, 24002 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28229.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7301 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 24029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.61ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 24002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32391.81ms IncrementalHoareTripleChecker+Time [2021-11-04 12:09:26,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7301 Valid, 283 Invalid, 24029 Unknown, 0 Unchecked, 45.61ms Time], IncrementalHoareTripleChecker [27 Valid, 24002 Invalid, 0 Unknown, 0 Unchecked, 32391.81ms Time] [2021-11-04 12:09:26,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47222 states. [2021-11-04 12:09:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47222 to 40077. [2021-11-04 12:09:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40077 states, 39819 states have (on average 1.2833823049298074) internal successors, (51103), 39824 states have internal predecessors, (51103), 182 states have call successors, (182), 70 states have call predecessors, (182), 70 states have return successors, (388), 182 states have call predecessors, (388), 182 states have call successors, (388) [2021-11-04 12:09:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40077 states to 40077 states and 51673 transitions. [2021-11-04 12:09:27,504 INFO L78 Accepts]: Start accepts. Automaton has 40077 states and 51673 transitions. Word has length 75 [2021-11-04 12:09:27,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:09:27,506 INFO L470 AbstractCegarLoop]: Abstraction has 40077 states and 51673 transitions. [2021-11-04 12:09:27,506 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) [2021-11-04 12:09:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 40077 states and 51673 transitions. [2021-11-04 12:09:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-04 12:09:27,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:09:27,514 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] [2021-11-04 12:09:27,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 12:09:27,515 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)] === [2021-11-04 12:09:27,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:09:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 165718619, now seen corresponding path program 1 times [2021-11-04 12:09:27,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:09:27,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054465973] [2021-11-04 12:09:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:09:27,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:09:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:09:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 12:09:27,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:09:27,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054465973] [2021-11-04 12:09:27,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054465973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:09:27,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:09:27,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:09:27,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990066296] [2021-11-04 12:09:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:09:27,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 12:09:27,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:09:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 12:09:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 12:09:27,683 INFO L87 Difference]: Start difference. First operand 40077 states and 51673 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) [2021-11-04 12:09:37,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:10:03,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:10:03,357 INFO L93 Difference]: Finished difference Result 74557 states and 96675 transitions. [2021-11-04 12:10:03,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 12:10:03,358 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 [2021-11-04 12:10:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:10:03,713 INFO L225 Difference]: With dead ends: 74557 [2021-11-04 12:10:03,713 INFO L226 Difference]: Without dead ends: 74553 [2021-11-04 12:10:03,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 12:10:03,789 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 7298 mSDsluCounter, 15827 mSDsCounter, 0 mSdLazyCounter, 24143 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29509.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7298 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 24171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.68ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 24143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34101.25ms IncrementalHoareTripleChecker+Time [2021-11-04 12:10:03,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7298 Valid, 315 Invalid, 24171 Unknown, 0 Unchecked, 44.68ms Time], IncrementalHoareTripleChecker [27 Valid, 24143 Invalid, 1 Unknown, 0 Unchecked, 34101.25ms Time] [2021-11-04 12:10:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74553 states. [2021-11-04 12:10:05,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74553 to 68467. [2021-11-04 12:10:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68467 states, 67989 states have (on average 1.2845754460280339) internal successors, (87337), 67990 states have internal predecessors, (87337), 332 states have call successors, (332), 112 states have call predecessors, (332), 140 states have return successors, (1246), 364 states have call predecessors, (1246), 332 states have call successors, (1246) [2021-11-04 12:10:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68467 states to 68467 states and 88915 transitions. [2021-11-04 12:10:05,402 INFO L78 Accepts]: Start accepts. Automaton has 68467 states and 88915 transitions. Word has length 77 [2021-11-04 12:10:05,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:10:05,403 INFO L470 AbstractCegarLoop]: Abstraction has 68467 states and 88915 transitions. [2021-11-04 12:10:05,403 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) [2021-11-04 12:10:05,403 INFO L276 IsEmpty]: Start isEmpty. Operand 68467 states and 88915 transitions. [2021-11-04 12:10:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 12:10:05,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:10:05,410 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] [2021-11-04 12:10:05,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 12:10:05,411 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)] === [2021-11-04 12:10:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:10:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 342152318, now seen corresponding path program 1 times [2021-11-04 12:10:05,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:10:05,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344966989] [2021-11-04 12:10:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:10:05,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:10:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:10:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 12:10:06,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:10:06,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344966989] [2021-11-04 12:10:06,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344966989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:10:06,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:10:06,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:10:06,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796041240] [2021-11-04 12:10:06,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:10:06,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 12:10:06,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:10:06,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 12:10:06,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 12:10:06,080 INFO L87 Difference]: Start difference. First operand 68467 states and 88915 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) [2021-11-04 12:10:16,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:10:28,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:10:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:10:45,465 INFO L93 Difference]: Finished difference Result 136815 states and 179302 transitions. [2021-11-04 12:10:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 12:10:45,465 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 [2021-11-04 12:10:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:10:46,258 INFO L225 Difference]: With dead ends: 136815 [2021-11-04 12:10:46,258 INFO L226 Difference]: Without dead ends: 136783 [2021-11-04 12:10:46,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 12:10:46,351 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 7295 mSDsluCounter, 14721 mSDsCounter, 0 mSdLazyCounter, 21916 mSolverCounterSat, 30 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31786.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7295 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 21948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.65ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 21916 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36527.17ms IncrementalHoareTripleChecker+Time [2021-11-04 12:10:46,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7295 Valid, 305 Invalid, 21948 Unknown, 0 Unchecked, 43.65ms Time], IncrementalHoareTripleChecker [30 Valid, 21916 Invalid, 2 Unknown, 0 Unchecked, 36527.17ms Time] [2021-11-04 12:10:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136783 states. [2021-11-04 12:10:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136783 to 136775. [2021-11-04 12:10:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136775 states, 135825 states have (on average 1.2847634824222345) internal successors, (174503), 135822 states have internal predecessors, (174503), 664 states have call successors, (664), 224 states have call predecessors, (664), 280 states have return successors, (4094), 728 states have call predecessors, (4094), 664 states have call successors, (4094) [2021-11-04 12:10:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136775 states to 136775 states and 179261 transitions. [2021-11-04 12:10:50,268 INFO L78 Accepts]: Start accepts. Automaton has 136775 states and 179261 transitions. Word has length 79 [2021-11-04 12:10:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:10:50,269 INFO L470 AbstractCegarLoop]: Abstraction has 136775 states and 179261 transitions. [2021-11-04 12:10:50,269 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) [2021-11-04 12:10:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 136775 states and 179261 transitions. [2021-11-04 12:10:50,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-04 12:10:50,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:10:50,333 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] [2021-11-04 12:10:50,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 12:10:50,333 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)] === [2021-11-04 12:10:50,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:10:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash 327484887, now seen corresponding path program 1 times [2021-11-04 12:10:50,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:10:50,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904381530] [2021-11-04 12:10:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:10:50,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:10:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:10:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 12:10:50,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:10:50,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904381530] [2021-11-04 12:10:50,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904381530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:10:50,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:10:50,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:10:50,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533080960] [2021-11-04 12:10:50,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:10:50,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:10:50,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:10:50,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:10:50,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:10:50,480 INFO L87 Difference]: Start difference. First operand 136775 states and 179261 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) [2021-11-04 12:10:57,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:03,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:11:31,483 INFO L93 Difference]: Finished difference Result 360612 states and 472184 transitions. [2021-11-04 12:11:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:11:31,484 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 [2021-11-04 12:11:31,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:11:32,850 INFO L225 Difference]: With dead ends: 360612 [2021-11-04 12:11:32,851 INFO L226 Difference]: Without dead ends: 223929 [2021-11-04 12:11:33,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:11:33,793 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 6232 mSDsluCounter, 7263 mSDsCounter, 0 mSdLazyCounter, 17782 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29892.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 17814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.31ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 17782 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34882.74ms IncrementalHoareTripleChecker+Time [2021-11-04 12:11:33,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6234 Valid, 113 Invalid, 17814 Unknown, 0 Unchecked, 34.31ms Time], IncrementalHoareTripleChecker [31 Valid, 17782 Invalid, 1 Unknown, 0 Unchecked, 34882.74ms Time] [2021-11-04 12:11:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223929 states. [2021-11-04 12:11:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223929 to 223593. [2021-11-04 12:11:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223593 states, 222259 states have (on average 1.284501415015815) internal successors, (285492), 222256 states have internal predecessors, (285492), 880 states have call successors, (880), 392 states have call predecessors, (880), 448 states have return successors, (5612), 944 states have call predecessors, (5612), 880 states have call successors, (5612) [2021-11-04 12:11:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223593 states to 223593 states and 291984 transitions. [2021-11-04 12:11:40,623 INFO L78 Accepts]: Start accepts. Automaton has 223593 states and 291984 transitions. Word has length 112 [2021-11-04 12:11:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:11:40,624 INFO L470 AbstractCegarLoop]: Abstraction has 223593 states and 291984 transitions. [2021-11-04 12:11:40,624 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-04 12:11:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 223593 states and 291984 transitions. [2021-11-04 12:11:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-04 12:11:40,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:11:40,687 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:11:40,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 12:11:40,688 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-04 12:11:40,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:11:40,689 INFO L85 PathProgramCache]: Analyzing trace with hash -735697307, now seen corresponding path program 1 times [2021-11-04 12:11:40,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:11:40,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853599317] [2021-11-04 12:11:40,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:11:40,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:11:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:11:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 12:11:40,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:11:40,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853599317] [2021-11-04 12:11:40,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853599317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:11:40,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:11:40,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:11:40,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954470132] [2021-11-04 12:11:40,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:11:40,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:11:40,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:11:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:11:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:11:40,850 INFO L87 Difference]: Start difference. First operand 223593 states and 291984 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-04 12:11:42,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:46,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:49,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:51,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:11:58,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:12:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:12:28,556 INFO L93 Difference]: Finished difference Result 464218 states and 607098 transitions. [2021-11-04 12:12:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:12:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 129 [2021-11-04 12:12:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:12:29,924 INFO L225 Difference]: With dead ends: 464218 [2021-11-04 12:12:29,924 INFO L226 Difference]: Without dead ends: 239884 [2021-11-04 12:12:31,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:12:31,236 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 6433 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 19900 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34515.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6435 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 19915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.27ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19900 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39827.30ms IncrementalHoareTripleChecker+Time [2021-11-04 12:12:31,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6435 Valid, 148 Invalid, 19915 Unknown, 0 Unchecked, 35.27ms Time], IncrementalHoareTripleChecker [14 Valid, 19900 Invalid, 1 Unknown, 0 Unchecked, 39827.30ms Time] [2021-11-04 12:12:31,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239884 states. [2021-11-04 12:12:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239884 to 239670. [2021-11-04 12:12:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239670 states, 238224 states have (on average 1.2856219356571965) internal successors, (306266), 238221 states have internal predecessors, (306266), 992 states have call successors, (992), 392 states have call predecessors, (992), 448 states have return successors, (6256), 1056 states have call predecessors, (6256), 992 states have call successors, (6256) [2021-11-04 12:12:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239670 states to 239670 states and 313514 transitions. [2021-11-04 12:12:38,668 INFO L78 Accepts]: Start accepts. Automaton has 239670 states and 313514 transitions. Word has length 129 [2021-11-04 12:12:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:12:38,668 INFO L470 AbstractCegarLoop]: Abstraction has 239670 states and 313514 transitions. [2021-11-04 12:12:38,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-04 12:12:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 239670 states and 313514 transitions. [2021-11-04 12:12:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-04 12:12:38,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:12:38,693 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:12:38,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 12:12:38,693 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-04 12:12:38,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:12:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash -15215207, now seen corresponding path program 1 times [2021-11-04 12:12:38,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:12:38,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544959404] [2021-11-04 12:12:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:12:38,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:12:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:12:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 12:12:38,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:12:38,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544959404] [2021-11-04 12:12:38,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544959404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:12:38,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:12:38,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:12:38,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920706843] [2021-11-04 12:12:38,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:12:38,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:12:38,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:12:38,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:12:38,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:12:38,831 INFO L87 Difference]: Start difference. First operand 239670 states and 313514 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-04 12:12:44,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:12:56,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []