./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:21:48,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:21:48,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:21:48,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:21:48,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:21:48,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:21:48,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:21:48,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:21:48,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:21:48,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:21:48,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:21:48,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:21:48,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:21:48,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:21:48,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:21:48,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:21:48,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:21:48,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:21:48,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:21:48,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:21:48,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:21:48,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:21:48,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:21:48,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:21:48,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:21:48,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:21:48,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:21:48,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:21:48,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:21:48,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:21:48,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:21:48,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:21:48,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:21:48,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:21:48,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:21:48,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:21:48,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:21:48,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:21:48,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:21:48,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:21:48,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:21:48,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:21:48,113 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:21:48,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:21:48,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:21:48,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:21:48,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:21:48,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:21:48,115 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:21:48,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:21:48,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:21:48,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:21:48,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:21:48,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:21:48,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:21:48,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:21:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:21:48,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:21:48,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:21:48,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:21:48,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:21:48,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-07 18:21:48,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:21:48,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:21:48,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:21:48,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:21:48,365 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:21:48,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 18:21:48,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db6045886/323e53573ce04b70a344e044ab5e1382/FLAG5e863d613 [2021-11-07 18:21:49,037 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:21:49,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 18:21:49,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db6045886/323e53573ce04b70a344e044ab5e1382/FLAG5e863d613 [2021-11-07 18:21:49,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db6045886/323e53573ce04b70a344e044ab5e1382 [2021-11-07 18:21:49,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:21:49,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:21:49,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:21:49,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:21:49,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:21:49,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:21:49" (1/1) ... [2021-11-07 18:21:49,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611a9f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:49, skipping insertion in model container [2021-11-07 18:21:49,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:21:49" (1/1) ... [2021-11-07 18:21:49,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:21:49,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:21:51,261 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 18:21:51,263 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 18:21:51,264 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 18:21:51,264 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 18:21:51,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:21:51,328 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:21:51,566 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 18:21:51,567 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 18:21:51,567 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 18:21:51,568 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 18:21:51,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:21:51,676 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:21:51,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51 WrapperNode [2021-11-07 18:21:51,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:21:51,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:21:51,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:21:51,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:21:51,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:21:51,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:00,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:22:00,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:22:00,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:22:00,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:22:00,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:00,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:01,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:01,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:02,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:02,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:02,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:03,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:22:03,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:22:03,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:22:03,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:22:03,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (1/1) ... [2021-11-07 18:22:03,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:22:03,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:22:03,448 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) [2021-11-07 18:22:03,480 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 [2021-11-07 18:22:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:22:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:22:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:22:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:22:38,214 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-07 18:22:38,219 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:22:38,220 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: #t~ret1275 := main_#res; [2021-11-07 18:22:38,226 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 18:22:38,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:22:38,491 INFO L299 CfgBuilder]: Removed 44956 assume(true) statements. [2021-11-07 18:22:38,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:22:38 BoogieIcfgContainer [2021-11-07 18:22:38,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:22:38,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:22:38,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:22:38,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:22:38,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:21:49" (1/3) ... [2021-11-07 18:22:38,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5984d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:22:38, skipping insertion in model container [2021-11-07 18:22:38,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:21:51" (2/3) ... [2021-11-07 18:22:38,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5984d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:22:38, skipping insertion in model container [2021-11-07 18:22:38,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:22:38" (3/3) ... [2021-11-07 18:22:38,520 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 18:22:38,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:22:38,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-07 18:22:38,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:22:38,642 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 [2021-11-07 18:22:38,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-07 18:22:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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) [2021-11-07 18:22:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 18:22:38,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:38,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:22:38,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash -29633841, now seen corresponding path program 1 times [2021-11-07 18:22:38,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:38,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729509785] [2021-11-07 18:22:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:38,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:39,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:39,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729509785] [2021-11-07 18:22:39,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729509785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:39,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:39,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:39,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416109802] [2021-11-07 18:22:39,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:39,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:22:39,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:39,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:22:39,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:22:39,390 INFO L87 Difference]: Start difference. First operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-07 18:22:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:40,392 INFO L93 Difference]: Finished difference Result 57591 states and 69316 transitions. [2021-11-07 18:22:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:22:40,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-07 18:22:40,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:40,519 INFO L225 Difference]: With dead ends: 57591 [2021-11-07 18:22:40,519 INFO L226 Difference]: Without dead ends: 28652 [2021-11-07 18:22:40,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:22:40,579 INFO L933 BasicCegarLoop]: 34539 mSDtfsCounter, 28985 mSDsluCounter, 5552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28985 SdHoareTripleChecker+Valid, 40091 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.78ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:40,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28985 Valid, 40091 Invalid, 3 Unknown, 0 Unchecked, 78.84ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 6.78ms Time] [2021-11-07 18:22:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2021-11-07 18:22:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28652. [2021-11-07 18:22:41,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28583 states have (on average 1.19700521288878) internal successors, (34214), 28651 states have internal predecessors, (34214), 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) [2021-11-07 18:22:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 34214 transitions. [2021-11-07 18:22:41,479 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 34214 transitions. Word has length 17 [2021-11-07 18:22:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:41,480 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 34214 transitions. [2021-11-07 18:22:41,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-07 18:22:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 34214 transitions. [2021-11-07 18:22:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 18:22:41,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:41,483 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] [2021-11-07 18:22:41,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:22:41,484 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:41,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:41,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1419453784, now seen corresponding path program 1 times [2021-11-07 18:22:41,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:41,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139519461] [2021-11-07 18:22:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:41,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:41,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:41,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139519461] [2021-11-07 18:22:41,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139519461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:41,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:41,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:41,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896591846] [2021-11-07 18:22:41,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:41,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:41,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:41,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:41,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:41,725 INFO L87 Difference]: Start difference. First operand 28652 states and 34214 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-07 18:22:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:42,424 INFO L93 Difference]: Finished difference Result 28652 states and 34214 transitions. [2021-11-07 18:22:42,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:42,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-07 18:22:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:42,489 INFO L225 Difference]: With dead ends: 28652 [2021-11-07 18:22:42,489 INFO L226 Difference]: Without dead ends: 28648 [2021-11-07 18:22:42,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:42,512 INFO L933 BasicCegarLoop]: 34206 mSDtfsCounter, 34190 mSDsluCounter, 34136 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34190 SdHoareTripleChecker+Valid, 68342 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.90ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.50ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:42,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34190 Valid, 68342 Invalid, 76 Unknown, 0 Unchecked, 72.90ms Time], IncrementalHoareTripleChecker [24 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 57.50ms Time] [2021-11-07 18:22:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2021-11-07 18:22:43,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28648. [2021-11-07 18:22:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28648 states, 28581 states have (on average 1.196949022077604) internal successors, (34210), 28647 states have internal predecessors, (34210), 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) [2021-11-07 18:22:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28648 states to 28648 states and 34210 transitions. [2021-11-07 18:22:43,184 INFO L78 Accepts]: Start accepts. Automaton has 28648 states and 34210 transitions. Word has length 25 [2021-11-07 18:22:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:43,185 INFO L470 AbstractCegarLoop]: Abstraction has 28648 states and 34210 transitions. [2021-11-07 18:22:43,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-07 18:22:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 28648 states and 34210 transitions. [2021-11-07 18:22:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 18:22:43,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:43,191 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] [2021-11-07 18:22:43,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:22:43,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:43,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1702205349, now seen corresponding path program 1 times [2021-11-07 18:22:43,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:43,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984511318] [2021-11-07 18:22:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:43,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:43,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:43,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984511318] [2021-11-07 18:22:43,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984511318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:43,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:43,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:43,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260469863] [2021-11-07 18:22:43,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:43,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:43,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:43,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:43,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:43,307 INFO L87 Difference]: Start difference. First operand 28648 states and 34210 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-07 18:22:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:43,931 INFO L93 Difference]: Finished difference Result 28648 states and 34210 transitions. [2021-11-07 18:22:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-07 18:22:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:43,985 INFO L225 Difference]: With dead ends: 28648 [2021-11-07 18:22:43,985 INFO L226 Difference]: Without dead ends: 28644 [2021-11-07 18:22:43,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:43,999 INFO L933 BasicCegarLoop]: 34202 mSDtfsCounter, 34182 mSDsluCounter, 34134 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34182 SdHoareTripleChecker+Valid, 68336 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.24ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.10ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:43,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34182 Valid, 68336 Invalid, 76 Unknown, 0 Unchecked, 56.24ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 56.10ms Time] [2021-11-07 18:22:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-11-07 18:22:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 28644. [2021-11-07 18:22:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28644 states, 28579 states have (on average 1.1968928234017986) internal successors, (34206), 28643 states have internal predecessors, (34206), 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) [2021-11-07 18:22:44,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28644 states to 28644 states and 34206 transitions. [2021-11-07 18:22:44,786 INFO L78 Accepts]: Start accepts. Automaton has 28644 states and 34206 transitions. Word has length 27 [2021-11-07 18:22:44,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:44,786 INFO L470 AbstractCegarLoop]: Abstraction has 28644 states and 34206 transitions. [2021-11-07 18:22:44,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-07 18:22:44,786 INFO L276 IsEmpty]: Start isEmpty. Operand 28644 states and 34206 transitions. [2021-11-07 18:22:44,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 18:22:44,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:44,787 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] [2021-11-07 18:22:44,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:22:44,788 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:44,788 INFO L85 PathProgramCache]: Analyzing trace with hash 565508062, now seen corresponding path program 1 times [2021-11-07 18:22:44,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:44,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415825771] [2021-11-07 18:22:44,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:44,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:44,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:44,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415825771] [2021-11-07 18:22:44,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415825771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:44,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:44,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:44,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531032331] [2021-11-07 18:22:44,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:44,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:44,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:44,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:44,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:44,891 INFO L87 Difference]: Start difference. First operand 28644 states and 34206 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-07 18:22:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:45,534 INFO L93 Difference]: Finished difference Result 28644 states and 34206 transitions. [2021-11-07 18:22:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:45,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-11-07 18:22:45,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:45,579 INFO L225 Difference]: With dead ends: 28644 [2021-11-07 18:22:45,579 INFO L226 Difference]: Without dead ends: 28640 [2021-11-07 18:22:45,589 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 [2021-11-07 18:22:45,590 INFO L933 BasicCegarLoop]: 34198 mSDtfsCounter, 34176 mSDsluCounter, 34132 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34176 SdHoareTripleChecker+Valid, 68330 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.00ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.74ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:45,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34176 Valid, 68330 Invalid, 74 Unknown, 0 Unchecked, 46.00ms Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 55.74ms Time] [2021-11-07 18:22:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2021-11-07 18:22:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28640. [2021-11-07 18:22:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28577 states have (on average 1.1968366168597124) internal successors, (34202), 28639 states have internal predecessors, (34202), 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) [2021-11-07 18:22:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 34202 transitions. [2021-11-07 18:22:46,257 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 34202 transitions. Word has length 29 [2021-11-07 18:22:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:46,258 INFO L470 AbstractCegarLoop]: Abstraction has 28640 states and 34202 transitions. [2021-11-07 18:22:46,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-07 18:22:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 34202 transitions. [2021-11-07 18:22:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 18:22:46,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:46,262 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] [2021-11-07 18:22:46,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:22:46,263 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:46,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2005290015, now seen corresponding path program 1 times [2021-11-07 18:22:46,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:46,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969579068] [2021-11-07 18:22:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:46,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:46,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:46,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969579068] [2021-11-07 18:22:46,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969579068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:46,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:46,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:46,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186297223] [2021-11-07 18:22:46,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:46,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:46,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:46,386 INFO L87 Difference]: Start difference. First operand 28640 states and 34202 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-07 18:22:47,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:47,072 INFO L93 Difference]: Finished difference Result 28640 states and 34202 transitions. [2021-11-07 18:22:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:47,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-07 18:22:47,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:47,126 INFO L225 Difference]: With dead ends: 28640 [2021-11-07 18:22:47,127 INFO L226 Difference]: Without dead ends: 28636 [2021-11-07 18:22:47,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:47,142 INFO L933 BasicCegarLoop]: 34194 mSDtfsCounter, 34170 mSDsluCounter, 34130 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34170 SdHoareTripleChecker+Valid, 68324 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.37ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.70ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:47,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34170 Valid, 68324 Invalid, 72 Unknown, 0 Unchecked, 45.37ms Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 53.70ms Time] [2021-11-07 18:22:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28636 states. [2021-11-07 18:22:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28636 to 28636. [2021-11-07 18:22:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28575 states have (on average 1.1967804024496937) internal successors, (34198), 28635 states have internal predecessors, (34198), 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) [2021-11-07 18:22:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 34198 transitions. [2021-11-07 18:22:47,917 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 34198 transitions. Word has length 31 [2021-11-07 18:22:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:47,918 INFO L470 AbstractCegarLoop]: Abstraction has 28636 states and 34198 transitions. [2021-11-07 18:22:47,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-07 18:22:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 34198 transitions. [2021-11-07 18:22:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 18:22:47,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:47,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:22:47,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 18:22:47,920 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:47,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:47,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1358920804, now seen corresponding path program 1 times [2021-11-07 18:22:47,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:47,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847148557] [2021-11-07 18:22:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:47,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:48,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:48,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847148557] [2021-11-07 18:22:48,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847148557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:48,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:48,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:48,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278823690] [2021-11-07 18:22:48,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:48,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:48,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:48,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:48,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:48,166 INFO L87 Difference]: Start difference. First operand 28636 states and 34198 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-07 18:22:49,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:49,665 INFO L93 Difference]: Finished difference Result 28636 states and 34198 transitions. [2021-11-07 18:22:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:49,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-11-07 18:22:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:49,705 INFO L225 Difference]: With dead ends: 28636 [2021-11-07 18:22:49,706 INFO L226 Difference]: Without dead ends: 28632 [2021-11-07 18:22:49,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:49,712 INFO L933 BasicCegarLoop]: 34148 mSDtfsCounter, 1011 mSDsluCounter, 67152 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 511.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 101300 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.64ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 631.51ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:49,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 101300 Invalid, 241 Unknown, 0 Unchecked, 57.64ms Time], IncrementalHoareTripleChecker [48 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 631.51ms Time] [2021-11-07 18:22:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28632 states. [2021-11-07 18:22:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28632 to 28632. [2021-11-07 18:22:50,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 28573 states have (on average 1.1967241801700907) internal successors, (34194), 28631 states have internal predecessors, (34194), 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) [2021-11-07 18:22:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 34194 transitions. [2021-11-07 18:22:50,457 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 34194 transitions. Word has length 33 [2021-11-07 18:22:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:50,457 INFO L470 AbstractCegarLoop]: Abstraction has 28632 states and 34194 transitions. [2021-11-07 18:22:50,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-07 18:22:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 34194 transitions. [2021-11-07 18:22:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 18:22:50,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:50,458 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] [2021-11-07 18:22:50,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 18:22:50,458 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:50,459 INFO L85 PathProgramCache]: Analyzing trace with hash 255144295, now seen corresponding path program 1 times [2021-11-07 18:22:50,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:50,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174046838] [2021-11-07 18:22:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:50,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:50,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:50,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174046838] [2021-11-07 18:22:50,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174046838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:50,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:50,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:50,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730942083] [2021-11-07 18:22:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:50,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:50,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:50,561 INFO L87 Difference]: Start difference. First operand 28632 states and 34194 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-07 18:22:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:51,318 INFO L93 Difference]: Finished difference Result 28632 states and 34194 transitions. [2021-11-07 18:22:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2021-11-07 18:22:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:51,362 INFO L225 Difference]: With dead ends: 28632 [2021-11-07 18:22:51,362 INFO L226 Difference]: Without dead ends: 28628 [2021-11-07 18:22:51,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:51,373 INFO L933 BasicCegarLoop]: 34186 mSDtfsCounter, 34158 mSDsluCounter, 34126 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34158 SdHoareTripleChecker+Valid, 68312 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.28ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.55ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:51,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34158 Valid, 68312 Invalid, 68 Unknown, 0 Unchecked, 49.28ms Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 51.55ms Time] [2021-11-07 18:22:51,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28628 states. [2021-11-07 18:22:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28628 to 28628. [2021-11-07 18:22:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28571 states have (on average 1.1966679500192503) internal successors, (34190), 28627 states have internal predecessors, (34190), 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) [2021-11-07 18:22:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-07 18:22:52,253 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 35 [2021-11-07 18:22:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:52,253 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-07 18:22:52,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-07 18:22:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-07 18:22:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 18:22:52,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:52,256 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] [2021-11-07 18:22:52,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 18:22:52,256 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash 382841578, now seen corresponding path program 1 times [2021-11-07 18:22:52,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:52,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713424359] [2021-11-07 18:22:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:52,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:52,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:52,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713424359] [2021-11-07 18:22:52,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713424359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:52,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:52,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:52,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770757669] [2021-11-07 18:22:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:52,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:52,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:52,382 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-07 18:22:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:53,308 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-07 18:22:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-07 18:22:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:53,352 INFO L225 Difference]: With dead ends: 28628 [2021-11-07 18:22:53,352 INFO L226 Difference]: Without dead ends: 28624 [2021-11-07 18:22:53,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.10ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:53,364 INFO L933 BasicCegarLoop]: 34182 mSDtfsCounter, 34152 mSDsluCounter, 34124 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34152 SdHoareTripleChecker+Valid, 68306 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.87ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.52ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:53,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34152 Valid, 68306 Invalid, 66 Unknown, 0 Unchecked, 54.87ms Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 54.52ms Time] [2021-11-07 18:22:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-07 18:22:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-07 18:22:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28569 states have (on average 1.1966117119955195) internal successors, (34186), 28623 states have internal predecessors, (34186), 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) [2021-11-07 18:22:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-07 18:22:54,236 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 37 [2021-11-07 18:22:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:54,236 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-07 18:22:54,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-07 18:22:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-07 18:22:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 18:22:54,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:54,237 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] [2021-11-07 18:22:54,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 18:22:54,237 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:54,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1454120723, now seen corresponding path program 1 times [2021-11-07 18:22:54,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:54,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174348560] [2021-11-07 18:22:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:54,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:54,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:54,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174348560] [2021-11-07 18:22:54,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174348560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:54,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:54,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:54,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455746859] [2021-11-07 18:22:54,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:54,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:54,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:54,327 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-07 18:22:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:55,145 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-07 18:22:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-07 18:22:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:55,186 INFO L225 Difference]: With dead ends: 28624 [2021-11-07 18:22:55,187 INFO L226 Difference]: Without dead ends: 28620 [2021-11-07 18:22:55,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:55,200 INFO L933 BasicCegarLoop]: 34178 mSDtfsCounter, 34146 mSDsluCounter, 34122 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34146 SdHoareTripleChecker+Valid, 68300 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 187.97ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.88ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:55,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34146 Valid, 68300 Invalid, 64 Unknown, 0 Unchecked, 187.97ms Time], IncrementalHoareTripleChecker [26 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 48.88ms Time] [2021-11-07 18:22:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-07 18:22:56,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-07 18:22:56,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28567 states have (on average 1.196555466097245) internal successors, (34182), 28619 states have internal predecessors, (34182), 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) [2021-11-07 18:22:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-07 18:22:56,350 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 39 [2021-11-07 18:22:56,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:56,350 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-07 18:22:56,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-07 18:22:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-07 18:22:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 18:22:56,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:56,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:22:56,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 18:22:56,351 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1543333008, now seen corresponding path program 1 times [2021-11-07 18:22:56,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:56,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158549336] [2021-11-07 18:22:56,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:56,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:56,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:56,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158549336] [2021-11-07 18:22:56,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158549336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:56,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:56,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:56,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452238870] [2021-11-07 18:22:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:56,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:56,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:56,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:56,585 INFO L87 Difference]: Start difference. First operand 28620 states and 34182 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:22:57,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:57,434 INFO L93 Difference]: Finished difference Result 28620 states and 34182 transitions. [2021-11-07 18:22:57,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:22:57,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 18:22:57,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:22:57,477 INFO L225 Difference]: With dead ends: 28620 [2021-11-07 18:22:57,477 INFO L226 Difference]: Without dead ends: 28616 [2021-11-07 18:22:57,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.41ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:22:57,488 INFO L933 BasicCegarLoop]: 34174 mSDtfsCounter, 34140 mSDsluCounter, 34120 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34140 SdHoareTripleChecker+Valid, 68294 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.38ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.02ms IncrementalHoareTripleChecker+Time [2021-11-07 18:22:57,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34140 Valid, 68294 Invalid, 62 Unknown, 0 Unchecked, 47.38ms Time], IncrementalHoareTripleChecker [26 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 44.02ms Time] [2021-11-07 18:22:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2021-11-07 18:22:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2021-11-07 18:22:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28565 states have (on average 1.1964992123227727) internal successors, (34178), 28615 states have internal predecessors, (34178), 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) [2021-11-07 18:22:58,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 34178 transitions. [2021-11-07 18:22:58,375 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 34178 transitions. Word has length 41 [2021-11-07 18:22:58,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:22:58,375 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 34178 transitions. [2021-11-07 18:22:58,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:22:58,376 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 34178 transitions. [2021-11-07 18:22:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 18:22:58,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:22:58,376 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] [2021-11-07 18:22:58,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 18:22:58,377 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:22:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:22:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 210955841, now seen corresponding path program 1 times [2021-11-07 18:22:58,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:22:58,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437894749] [2021-11-07 18:22:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:22:58,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:22:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:22:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:22:58,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:22:58,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437894749] [2021-11-07 18:22:58,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437894749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:22:58,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:22:58,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:22:58,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932993668] [2021-11-07 18:22:58,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:22:58,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:22:58,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:22:58,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:22:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:22:58,516 INFO L87 Difference]: Start difference. First operand 28616 states and 34178 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 18:22:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:22:59,958 INFO L93 Difference]: Finished difference Result 29034 states and 34697 transitions. [2021-11-07 18:22:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 18:22:59,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-07 18:22:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:23:00,004 INFO L225 Difference]: With dead ends: 29034 [2021-11-07 18:23:00,005 INFO L226 Difference]: Without dead ends: 28992 [2021-11-07 18:23:00,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:23:00,023 INFO L933 BasicCegarLoop]: 34576 mSDtfsCounter, 35017 mSDsluCounter, 33604 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35017 SdHoareTripleChecker+Valid, 68180 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.78ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 309.63ms IncrementalHoareTripleChecker+Time [2021-11-07 18:23:00,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35017 Valid, 68180 Invalid, 217 Unknown, 0 Unchecked, 56.78ms Time], IncrementalHoareTripleChecker [71 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 309.63ms Time] [2021-11-07 18:23:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28992 states. [2021-11-07 18:23:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28992 to 28574. [2021-11-07 18:23:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28574 states, 28544 states have (on average 1.195908071748879) internal successors, (34136), 28573 states have internal predecessors, (34136), 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) [2021-11-07 18:23:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28574 states to 28574 states and 34136 transitions. [2021-11-07 18:23:01,114 INFO L78 Accepts]: Start accepts. Automaton has 28574 states and 34136 transitions. Word has length 42 [2021-11-07 18:23:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:23:01,114 INFO L470 AbstractCegarLoop]: Abstraction has 28574 states and 34136 transitions. [2021-11-07 18:23:01,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 18:23:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 28574 states and 34136 transitions. [2021-11-07 18:23:01,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 18:23:01,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:23:01,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 18:23:01,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 18:23:01,115 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 18:23:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:23:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1376992653, now seen corresponding path program 1 times [2021-11-07 18:23:01,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:23:01,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789760519] [2021-11-07 18:23:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:23:01,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:23:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:23:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:23:01,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:23:01,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789760519] [2021-11-07 18:23:01,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789760519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:23:01,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:23:01,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:23:01,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005812598] [2021-11-07 18:23:01,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:23:01,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:23:01,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:23:01,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:23:01,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:23:01,219 INFO L87 Difference]: Start difference. First operand 28574 states and 34136 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)