./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.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 adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 09:49:29,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:49:29,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:49:29,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:49:29,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:49:29,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:49:29,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:49:29,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:49:29,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:49:29,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:49:29,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:49:29,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:49:29,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:49:29,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:49:29,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:49:29,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:49:29,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:49:29,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:49:29,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:49:29,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:49:29,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:49:29,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:49:29,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:49:29,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:49:29,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:49:29,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:49:29,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:49:29,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:49:29,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:49:29,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:49:29,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:49:29,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:49:29,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:49:29,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:49:29,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:49:29,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:49:29,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:49:29,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:49:29,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:49:29,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:49:29,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:49:29,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:49:29,421 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:49:29,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:49:29,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:49:29,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:49:29,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:49:29,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:49:29,423 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:49:29,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:49:29,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:49:29,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:49:29,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:49:29,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:49:29,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:49:29,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:49:29,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:49:29,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:49:29,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:49:29,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:49:29,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:49:29,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:49:29,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:49:29,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:49:29,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:49:29,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:49:29,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:49:29,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:49:29,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:49:29,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:49:29,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:49:29,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2021-11-04 09:49:29,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:49:29,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:49:29,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:49:29,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:49:29,626 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:49:29,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2021-11-04 09:49:29,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f7acb0/d8bfe91a85e9405da38b1fc21e5ab20e/FLAGc0a7c72fb [2021-11-04 09:49:30,253 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:49:30,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2021-11-04 09:49:30,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f7acb0/d8bfe91a85e9405da38b1fc21e5ab20e/FLAGc0a7c72fb [2021-11-04 09:49:30,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f7acb0/d8bfe91a85e9405da38b1fc21e5ab20e [2021-11-04 09:49:30,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:49:30,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:49:30,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:49:30,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:49:30,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:49:30,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:49:30" (1/1) ... [2021-11-04 09:49:30,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f28001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:30, skipping insertion in model container [2021-11-04 09:49:30,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:49:30" (1/1) ... [2021-11-04 09:49:30,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:49:30,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:49:32,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2021-11-04 09:49:32,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2021-11-04 09:49:32,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2021-11-04 09:49:32,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2021-11-04 09:49:32,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:49:32,172 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:49:32,414 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2021-11-04 09:49:32,415 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2021-11-04 09:49:32,415 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2021-11-04 09:49:32,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2021-11-04 09:49:32,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:49:32,541 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:49:32,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32 WrapperNode [2021-11-04 09:49:32,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:49:32,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:49:32,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:49:32,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:49:32,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:32,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:35,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:49:35,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:49:35,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:49:35,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:49:35,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:35,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:36,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:36,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:37,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:37,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:38,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:38,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:49:38,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:49:38,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:49:38,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:49:38,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (1/1) ... [2021-11-04 09:49:38,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:49:38,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:49:38,759 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 09:49:38,771 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 09:49:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:49:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:49:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:49:52,621 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-04 09:49:52,622 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 09:49:52,622 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 09:49:52,622 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:49:52,623 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-04 09:49:52,623 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:49:52,623 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-04 09:49:52,623 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 09:49:52,624 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:49:52,629 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:49:52,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-04 09:49:52,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 09:49:52,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:49:52,697 INFO L299 CfgBuilder]: Removed 24094 assume(true) statements. [2021-11-04 09:49:52,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:49:52 BoogieIcfgContainer [2021-11-04 09:49:52,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:49:52,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:49:52,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:49:52,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:49:52,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:49:30" (1/3) ... [2021-11-04 09:49:52,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3161b3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:49:52, skipping insertion in model container [2021-11-04 09:49:52,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:49:32" (2/3) ... [2021-11-04 09:49:52,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3161b3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:49:52, skipping insertion in model container [2021-11-04 09:49:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:49:52" (3/3) ... [2021-11-04 09:49:52,723 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2021-11-04 09:49:52,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:49:52,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 486 error locations. [2021-11-04 09:49:52,818 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:49:52,824 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 09:49:52,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 486 error locations. [2021-11-04 09:49:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 24545 states, 24059 states have (on average 1.3685107444199676) internal successors, (32925), 24544 states have internal predecessors, (32925), 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 09:49:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-04 09:49:53,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:49:53,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:49:53,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 09:49:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:49:53,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2022520009, now seen corresponding path program 1 times [2021-11-04 09:49:53,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:49:53,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908048941] [2021-11-04 09:49:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:49:53,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:49:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:49:53,602 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 09:49:53,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:49:53,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908048941] [2021-11-04 09:49:53,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908048941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:49:53,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:49:53,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:49:53,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112958953] [2021-11-04 09:49:53,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:49:53,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:49:53,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:49:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:49:53,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:49:53,713 INFO L87 Difference]: Start difference. First operand has 24545 states, 24059 states have (on average 1.3685107444199676) internal successors, (32925), 24544 states have internal predecessors, (32925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 22.666666666666668) 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 09:51:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:51:53,244 INFO L93 Difference]: Finished difference Result 71784 states and 96364 transitions. [2021-11-04 09:51:53,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:51:53,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) 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 68 [2021-11-04 09:51:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:51:53,397 INFO L225 Difference]: With dead ends: 71784 [2021-11-04 09:51:53,398 INFO L226 Difference]: Without dead ends: 46251 [2021-11-04 09:51:53,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:51:53,454 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 30930 mSDsluCounter, 31222 mSDsCounter, 0 mSdLazyCounter, 61711 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104063.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30930 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 61796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 115.04ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 61711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117389.20ms IncrementalHoareTripleChecker+Time [2021-11-04 09:51:53,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30930 Valid, 1202 Invalid, 61796 Unknown, 0 Unchecked, 115.04ms Time], IncrementalHoareTripleChecker [85 Valid, 61711 Invalid, 0 Unknown, 0 Unchecked, 117389.20ms Time] [2021-11-04 09:51:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46251 states. [2021-11-04 09:51:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46251 to 42920. [2021-11-04 09:51:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42920 states, 42434 states have (on average 1.3313145119479664) internal successors, (56493), 42919 states have internal predecessors, (56493), 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 09:51:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42920 states to 42920 states and 56493 transitions. [2021-11-04 09:51:54,475 INFO L78 Accepts]: Start accepts. Automaton has 42920 states and 56493 transitions. Word has length 68 [2021-11-04 09:51:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:51:54,476 INFO L470 AbstractCegarLoop]: Abstraction has 42920 states and 56493 transitions. [2021-11-04 09:51:54,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) 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 09:51:54,478 INFO L276 IsEmpty]: Start isEmpty. Operand 42920 states and 56493 transitions. [2021-11-04 09:51:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-04 09:51:54,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:51:54,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:51:54,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:51:54,484 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 09:51:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:51:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1803716258, now seen corresponding path program 1 times [2021-11-04 09:51:54,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:51:54,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023818646] [2021-11-04 09:51:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:51:54,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:51:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:51:54,688 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 09:51:54,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:51:54,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023818646] [2021-11-04 09:51:54,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023818646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:51:54,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:51:54,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:51:54,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216289739] [2021-11-04 09:51:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:51:54,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:51:54,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:51:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:51:54,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:51:54,693 INFO L87 Difference]: Start difference. First operand 42920 states and 56493 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) 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 09:51:56,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:54:15,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:54:15,870 INFO L93 Difference]: Finished difference Result 128328 states and 169008 transitions. [2021-11-04 09:54:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:54:15,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) 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 70 [2021-11-04 09:54:15,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:54:16,086 INFO L225 Difference]: With dead ends: 128328 [2021-11-04 09:54:16,087 INFO L226 Difference]: Without dead ends: 85548 [2021-11-04 09:54:16,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:54:16,163 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 30140 mSDsluCounter, 30346 mSDsCounter, 0 mSdLazyCounter, 60767 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122134.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30140 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 99.60ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60767 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138604.00ms IncrementalHoareTripleChecker+Time [2021-11-04 09:54:16,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30140 Valid, 0 Invalid, 60777 Unknown, 0 Unchecked, 99.60ms Time], IncrementalHoareTripleChecker [9 Valid, 60767 Invalid, 1 Unknown, 0 Unchecked, 138604.00ms Time] [2021-11-04 09:54:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85548 states. [2021-11-04 09:54:17,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85548 to 84600. [2021-11-04 09:54:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84600 states, 84114 states have (on average 1.3336662148988279) internal successors, (112180), 84599 states have internal predecessors, (112180), 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 09:54:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84600 states to 84600 states and 112180 transitions. [2021-11-04 09:54:17,858 INFO L78 Accepts]: Start accepts. Automaton has 84600 states and 112180 transitions. Word has length 70 [2021-11-04 09:54:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:54:17,858 INFO L470 AbstractCegarLoop]: Abstraction has 84600 states and 112180 transitions. [2021-11-04 09:54:17,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) 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 09:54:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 84600 states and 112180 transitions. [2021-11-04 09:54:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 09:54:17,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:54:17,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:54:17,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:54:17,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 09:54:17,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:54:17,861 INFO L85 PathProgramCache]: Analyzing trace with hash 292728386, now seen corresponding path program 1 times [2021-11-04 09:54:17,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:54:17,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376262960] [2021-11-04 09:54:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:54:17,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:54:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:54:18,035 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 09:54:18,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:54:18,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376262960] [2021-11-04 09:54:18,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376262960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:54:18,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:54:18,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:54:18,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666629284] [2021-11-04 09:54:18,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:54:18,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:54:18,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:54:18,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:54:18,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:54:18,038 INFO L87 Difference]: Start difference. First operand 84600 states and 112180 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 09:56:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:56:28,932 INFO L93 Difference]: Finished difference Result 187984 states and 249412 transitions. [2021-11-04 09:56:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:56:28,935 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 09:56:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:56:29,190 INFO L225 Difference]: With dead ends: 187984 [2021-11-04 09:56:29,190 INFO L226 Difference]: Without dead ends: 103524 [2021-11-04 09:56:29,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:56:29,301 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6912 mSDsluCounter, 30302 mSDsCounter, 0 mSdLazyCounter, 60790 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112871.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6912 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 93.07ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 60790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128098.46ms IncrementalHoareTripleChecker+Time [2021-11-04 09:56:29,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6912 Valid, 0 Invalid, 60821 Unknown, 0 Unchecked, 93.07ms Time], IncrementalHoareTripleChecker [31 Valid, 60790 Invalid, 0 Unknown, 0 Unchecked, 128098.46ms Time] [2021-11-04 09:56:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103524 states. [2021-11-04 09:56:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103524 to 103236. [2021-11-04 09:56:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103236 states, 102750 states have (on average 1.3341703163017031) internal successors, (137086), 103235 states have internal predecessors, (137086), 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 09:56:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103236 states to 103236 states and 137086 transitions. [2021-11-04 09:56:31,469 INFO L78 Accepts]: Start accepts. Automaton has 103236 states and 137086 transitions. Word has length 73 [2021-11-04 09:56:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:56:31,469 INFO L470 AbstractCegarLoop]: Abstraction has 103236 states and 137086 transitions. [2021-11-04 09:56:31,469 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 09:56:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 103236 states and 137086 transitions. [2021-11-04 09:56:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-04 09:56:31,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:56:31,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:56:31,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:56:31,471 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr442ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 09:56:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:56:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1216967742, now seen corresponding path program 1 times [2021-11-04 09:56:31,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:56:31,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731654995] [2021-11-04 09:56:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:56:31,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:56:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:56:31,617 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 09:56:31,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:56:31,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731654995] [2021-11-04 09:56:31,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731654995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:56:31,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:56:31,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:56:31,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946847169] [2021-11-04 09:56:31,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:56:31,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:56:31,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:56:31,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:56:31,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:56:31,621 INFO L87 Difference]: Start difference. First operand 103236 states and 137086 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) 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 09:59:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:59:01,765 INFO L93 Difference]: Finished difference Result 294652 states and 391256 transitions. [2021-11-04 09:59:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:59:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) 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 74 [2021-11-04 09:59:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:59:02,172 INFO L225 Difference]: With dead ends: 294652 [2021-11-04 09:59:02,173 INFO L226 Difference]: Without dead ends: 191556 [2021-11-04 09:59:02,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:59:02,317 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 28452 mSDsluCounter, 29528 mSDsCounter, 0 mSdLazyCounter, 59970 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128513.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28452 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 59986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 109.47ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145817.14ms IncrementalHoareTripleChecker+Time [2021-11-04 09:59:02,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28452 Valid, 0 Invalid, 59986 Unknown, 0 Unchecked, 109.47ms Time], IncrementalHoareTripleChecker [16 Valid, 59970 Invalid, 0 Unknown, 0 Unchecked, 145817.14ms Time] [2021-11-04 09:59:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191556 states. [2021-11-04 09:59:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191556 to 190608. [2021-11-04 09:59:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190608 states, 190122 states have (on average 1.3346062002293264) internal successors, (253738), 190607 states have internal predecessors, (253738), 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 09:59:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190608 states to 190608 states and 253738 transitions. [2021-11-04 09:59:06,375 INFO L78 Accepts]: Start accepts. Automaton has 190608 states and 253738 transitions. Word has length 74 [2021-11-04 09:59:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:59:06,376 INFO L470 AbstractCegarLoop]: Abstraction has 190608 states and 253738 transitions. [2021-11-04 09:59:06,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) 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 09:59:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 190608 states and 253738 transitions. [2021-11-04 09:59:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-04 09:59:06,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:59:06,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:59:06,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 09:59:06,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 09:59:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:59:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1636212593, now seen corresponding path program 1 times [2021-11-04 09:59:06,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:59:06,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816705506] [2021-11-04 09:59:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:59:06,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:59:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:59:06,501 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 09:59:06,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:59:06,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816705506] [2021-11-04 09:59:06,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816705506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:59:06,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:59:06,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:59:06,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928803268] [2021-11-04 09:59:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:59:06,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:59:06,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:59:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:59:06,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:59:06,506 INFO L87 Difference]: Start difference. First operand 190608 states and 253738 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 10:01:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:01:35,609 INFO L93 Difference]: Finished difference Result 468436 states and 623442 transitions. [2021-11-04 10:01:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:01:35,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-04 10:01:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:01:36,246 INFO L225 Difference]: With dead ends: 468436 [2021-11-04 10:01:36,247 INFO L226 Difference]: Without dead ends: 277968 [2021-11-04 10:01:36,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:01:36,510 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 29433 mSDsluCounter, 30321 mSDsCounter, 0 mSdLazyCounter, 60759 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125962.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29433 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 111.29ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 60759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143114.91ms IncrementalHoareTripleChecker+Time [2021-11-04 10:01:36,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29433 Valid, 0 Invalid, 60774 Unknown, 0 Unchecked, 111.29ms Time], IncrementalHoareTripleChecker [15 Valid, 60759 Invalid, 0 Unknown, 0 Unchecked, 143114.91ms Time] [2021-11-04 10:01:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277968 states. [2021-11-04 10:01:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277968 to 276976. [2021-11-04 10:01:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276976 states, 276490 states have (on average 1.3352092299902347) internal successors, (369172), 276975 states have internal predecessors, (369172), 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 10:01:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276976 states to 276976 states and 369172 transitions. [2021-11-04 10:01:42,287 INFO L78 Accepts]: Start accepts. Automaton has 276976 states and 369172 transitions. Word has length 85 [2021-11-04 10:01:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:01:42,288 INFO L470 AbstractCegarLoop]: Abstraction has 276976 states and 369172 transitions. [2021-11-04 10:01:42,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 10:01:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 276976 states and 369172 transitions. [2021-11-04 10:01:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-04 10:01:42,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:01:42,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:01:42,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:01:42,292 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr476ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 483 more)] === [2021-11-04 10:01:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:01:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1518056606, now seen corresponding path program 1 times [2021-11-04 10:01:42,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:01:42,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78831825] [2021-11-04 10:01:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:01:42,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:01:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:01:42,427 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 10:01:42,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:01:42,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78831825] [2021-11-04 10:01:42,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78831825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:01:42,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:01:42,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:01:42,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181793755] [2021-11-04 10:01:42,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:01:42,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:01:42,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:01:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:01:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:01:42,430 INFO L87 Difference]: Start difference. First operand 276976 states and 369172 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 10:01:43,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:01:45,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15