./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.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 9b379d3952381ee5f7f20521f33bb132b70e1b6ee6e3a8e84f57aac9987165a8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:57:44,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:57:44,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:57:44,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:57:44,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:57:44,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:57:44,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:57:44,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:57:44,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:57:44,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:57:44,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:57:44,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:57:44,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:57:44,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:57:44,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:57:44,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:57:44,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:57:44,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:57:44,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:57:44,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:57:44,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:57:44,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:57:44,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:57:44,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:57:44,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:57:44,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:57:44,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:57:44,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:57:44,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:57:44,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:57:44,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:57:44,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:57:44,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:57:44,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:57:44,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:57:44,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:57:44,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:57:44,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:57:44,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:57:44,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:57:44,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:57:44,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:57:44,685 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:57:44,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:57:44,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:57:44,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:57:44,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:57:44,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:57:44,687 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:57:44,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:57:44,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:57:44,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:57:44,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:57:44,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:57:44,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:57:44,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:57:44,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:57:44,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:57:44,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:57:44,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:57:44,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b379d3952381ee5f7f20521f33bb132b70e1b6ee6e3a8e84f57aac9987165a8 [2021-11-07 18:57:44,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:57:44,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:57:44,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:57:44,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:57:44,943 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:57:44,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-07 18:57:44,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9eacce2c/de7c1a3ef8524714bbb3d4dc1c793326/FLAGfe783f0c1 [2021-11-07 18:57:45,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:57:45,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-07 18:57:45,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9eacce2c/de7c1a3ef8524714bbb3d4dc1c793326/FLAGfe783f0c1 [2021-11-07 18:57:46,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9eacce2c/de7c1a3ef8524714bbb3d4dc1c793326 [2021-11-07 18:57:46,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:57:46,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:57:46,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:57:46,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:57:46,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:57:46,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:46" (1/1) ... [2021-11-07 18:57:46,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e19d0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:46, skipping insertion in model container [2021-11-07 18:57:46,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:46" (1/1) ... [2021-11-07 18:57:46,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:57:46,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:57:53,259 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[837847,837860] [2021-11-07 18:57:53,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:57:53,378 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:57:53,792 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[837847,837860] [2021-11-07 18:57:53,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:57:54,286 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:57:54,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54 WrapperNode [2021-11-07 18:57:54,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:57:54,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:57:54,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:57:54,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:57:54,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:54,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:55,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:57:55,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:57:55,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:57:55,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:57:55,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:55,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:56,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:56,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:56,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:56,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:57,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:57,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:57:57,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:57:57,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:57:57,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:57:57,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (1/1) ... [2021-11-07 18:57:57,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:57:57,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:57:57,522 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 18:57:57,537 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 18:57:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-07 18:57:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-07 18:57:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-07 18:57:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-07 18:57:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-07 18:57:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-07 18:57:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-07 18:57:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-07 18:57:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:57:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:57:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-07 18:57:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-07 18:57:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-07 18:57:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:57:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:57:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:57:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 18:57:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-07 18:57:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-07 18:57:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-07 18:57:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-07 18:57:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-07 18:57:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-07 18:57:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:57:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 18:57:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 18:57:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:57:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-07 18:57:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-07 18:57:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-07 18:57:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-07 18:57:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-07 18:57:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-07 18:57:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:57:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-07 18:57:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-07 18:57:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-07 18:57:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-07 18:57:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-07 18:57:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-07 18:57:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-07 18:57:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-07 18:57:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-07 18:57:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:57:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-07 18:57:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-07 18:57:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-07 18:57:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-07 18:57:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-07 18:57:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-07 18:57:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-07 18:57:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-07 18:57:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-07 18:57:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-07 18:57:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-07 18:57:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-07 18:57:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-07 18:57:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-07 18:57:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 18:57:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 18:57:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-07 18:57:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-07 18:57:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 18:57:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-07 18:57:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-07 18:57:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-07 18:57:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-07 18:57:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-07 18:57:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-07 18:57:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 18:57:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 18:57:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:57:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 18:57:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 18:57:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-07 18:57:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-07 18:59:35,632 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-07 18:59:35,633 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-07 18:59:35,634 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 18:59:35,635 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-07 18:59:35,635 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:59:35,635 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 18:59:35,635 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-07 18:59:35,636 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 18:59:35,636 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-07 18:59:35,636 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-07 18:59:35,636 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 18:59:35,636 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 18:59:35,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:59:35,740 INFO L299 CfgBuilder]: Removed 10555 assume(true) statements. [2021-11-07 18:59:35,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:59:35 BoogieIcfgContainer [2021-11-07 18:59:35,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:59:35,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:59:35,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:59:35,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:59:35,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:57:46" (1/3) ... [2021-11-07 18:59:35,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b62919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:59:35, skipping insertion in model container [2021-11-07 18:59:35,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:54" (2/3) ... [2021-11-07 18:59:35,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b62919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:59:35, skipping insertion in model container [2021-11-07 18:59:35,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:59:35" (3/3) ... [2021-11-07 18:59:35,758 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-07 18:59:35,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:59:35,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 18:59:35,814 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:59:35,818 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 18:59:35,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 18:59:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 10918 states, 10741 states have (on average 1.3875802997858673) internal successors, (14904), 10755 states have internal predecessors, (14904), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-07 18:59:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-07 18:59:35,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:59:35,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:35,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 18:59:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:59:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash 437795615, now seen corresponding path program 1 times [2021-11-07 18:59:35,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:59:35,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179135199] [2021-11-07 18:59:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:59:35,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:59:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:59:37,569 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 18:59:37,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:59:37,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179135199] [2021-11-07 18:59:37,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179135199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:59:37,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:59:37,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:59:37,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578783313] [2021-11-07 18:59:37,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:59:37,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:59:37,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:59:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:59:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:37,636 INFO L87 Difference]: Start difference. First operand has 10918 states, 10741 states have (on average 1.3875802997858673) internal successors, (14904), 10755 states have internal predecessors, (14904), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 18:59:39,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:59:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:59:40,769 INFO L93 Difference]: Finished difference Result 30974 states and 43463 transitions. [2021-11-07 18:59:40,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:59:40,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 254 [2021-11-07 18:59:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:59:40,894 INFO L225 Difference]: With dead ends: 30974 [2021-11-07 18:59:40,894 INFO L226 Difference]: Without dead ends: 20264 [2021-11-07 18:59:40,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:40,971 INFO L933 BasicCegarLoop]: 15217 mSDtfsCounter, 13912 mSDsluCounter, 15022 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2432.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13912 SdHoareTripleChecker+Valid, 30239 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.28ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2583.24ms IncrementalHoareTripleChecker+Time [2021-11-07 18:59:40,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13912 Valid, 30239 Invalid, 84 Unknown, 0 Unchecked, 45.28ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2583.24ms Time] [2021-11-07 18:59:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20264 states. [2021-11-07 18:59:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20264 to 20264. [2021-11-07 18:59:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20264 states, 19916 states have (on average 1.368849166499297) internal successors, (27262), 19939 states have internal predecessors, (27262), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2021-11-07 18:59:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20264 states to 20264 states and 27798 transitions. [2021-11-07 18:59:41,541 INFO L78 Accepts]: Start accepts. Automaton has 20264 states and 27798 transitions. Word has length 254 [2021-11-07 18:59:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:59:41,544 INFO L470 AbstractCegarLoop]: Abstraction has 20264 states and 27798 transitions. [2021-11-07 18:59:41,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 18:59:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 20264 states and 27798 transitions. [2021-11-07 18:59:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-07 18:59:41,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:59:41,562 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:41,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:59:41,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 18:59:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:59:41,565 INFO L85 PathProgramCache]: Analyzing trace with hash 451016559, now seen corresponding path program 1 times [2021-11-07 18:59:41,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:59:41,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942595110] [2021-11-07 18:59:41,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:59:41,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:59:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:59:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:59:42,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:59:42,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942595110] [2021-11-07 18:59:42,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942595110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:59:42,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:59:42,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:59:42,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426825169] [2021-11-07 18:59:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:59:42,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:59:42,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:59:42,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:59:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:42,552 INFO L87 Difference]: Start difference. First operand 20264 states and 27798 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 18:59:44,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:59:45,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:59:45,656 INFO L93 Difference]: Finished difference Result 39882 states and 54885 transitions. [2021-11-07 18:59:45,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:59:45,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-07 18:59:45,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:59:45,821 INFO L225 Difference]: With dead ends: 39882 [2021-11-07 18:59:45,822 INFO L226 Difference]: Without dead ends: 30017 [2021-11-07 18:59:45,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:45,874 INFO L933 BasicCegarLoop]: 27780 mSDtfsCounter, 13470 mSDsluCounter, 14270 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2377.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 42050 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.21ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2518.14ms IncrementalHoareTripleChecker+Time [2021-11-07 18:59:45,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13470 Valid, 42050 Invalid, 80 Unknown, 0 Unchecked, 58.21ms Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2518.14ms Time] [2021-11-07 18:59:45,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30017 states. [2021-11-07 18:59:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30017 to 30017. [2021-11-07 18:59:46,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30017 states, 29498 states have (on average 1.3717540172215066) internal successors, (40464), 29530 states have internal predecessors, (40464), 402 states have call successors, (402), 111 states have call predecessors, (402), 111 states have return successors, (402), 396 states have call predecessors, (402), 402 states have call successors, (402) [2021-11-07 18:59:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30017 states to 30017 states and 41268 transitions. [2021-11-07 18:59:46,495 INFO L78 Accepts]: Start accepts. Automaton has 30017 states and 41268 transitions. Word has length 290 [2021-11-07 18:59:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:59:46,497 INFO L470 AbstractCegarLoop]: Abstraction has 30017 states and 41268 transitions. [2021-11-07 18:59:46,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 18:59:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 30017 states and 41268 transitions. [2021-11-07 18:59:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-07 18:59:46,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:59:46,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:46,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:59:46,511 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 18:59:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:59:46,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1152081137, now seen corresponding path program 1 times [2021-11-07 18:59:46,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:59:46,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462914035] [2021-11-07 18:59:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:59:46,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:59:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:59:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:59:47,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:59:47,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462914035] [2021-11-07 18:59:47,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462914035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:59:47,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:59:47,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:59:47,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53883608] [2021-11-07 18:59:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:59:47,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:59:47,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:59:47,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:59:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:47,626 INFO L87 Difference]: Start difference. First operand 30017 states and 41268 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 18:59:49,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:59:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:59:50,698 INFO L93 Difference]: Finished difference Result 59389 states and 81827 transitions. [2021-11-07 18:59:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:59:50,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-07 18:59:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:59:50,886 INFO L225 Difference]: With dead ends: 59389 [2021-11-07 18:59:50,886 INFO L226 Difference]: Without dead ends: 39771 [2021-11-07 18:59:50,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:59:50,998 INFO L933 BasicCegarLoop]: 27780 mSDtfsCounter, 13476 mSDsluCounter, 14265 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2391.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13476 SdHoareTripleChecker+Valid, 42045 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.23ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2541.15ms IncrementalHoareTripleChecker+Time [2021-11-07 18:59:51,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13476 Valid, 42045 Invalid, 82 Unknown, 0 Unchecked, 27.23ms Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2541.15ms Time] [2021-11-07 18:59:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39771 states. [2021-11-07 18:59:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39771 to 39771. [2021-11-07 18:59:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39771 states, 39081 states have (on average 1.3732248407154373) internal successors, (53667), 39122 states have internal predecessors, (53667), 536 states have call successors, (536), 148 states have call predecessors, (536), 148 states have return successors, (536), 528 states have call predecessors, (536), 536 states have call successors, (536) [2021-11-07 18:59:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39771 states to 39771 states and 54739 transitions. [2021-11-07 18:59:51,791 INFO L78 Accepts]: Start accepts. Automaton has 39771 states and 54739 transitions. Word has length 290 [2021-11-07 18:59:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:59:51,791 INFO L470 AbstractCegarLoop]: Abstraction has 39771 states and 54739 transitions. [2021-11-07 18:59:51,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 18:59:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand 39771 states and 54739 transitions. [2021-11-07 18:59:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-07 18:59:51,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:59:51,816 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:51,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:59:51,817 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 18:59:51,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:59:51,818 INFO L85 PathProgramCache]: Analyzing trace with hash -644569363, now seen corresponding path program 1 times [2021-11-07 18:59:51,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:59:51,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996811616] [2021-11-07 18:59:51,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:59:51,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:59:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:59:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 18:59:53,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:59:53,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996811616] [2021-11-07 18:59:53,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996811616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:59:53,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:59:53,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:59:53,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932939800] [2021-11-07 18:59:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:59:53,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:59:53,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:59:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:59:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:59:53,118 INFO L87 Difference]: Start difference. First operand 39771 states and 54739 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 18:59:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:59:53,601 INFO L93 Difference]: Finished difference Result 39771 states and 54739 transitions. [2021-11-07 18:59:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:59:53,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 305 [2021-11-07 18:59:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:59:53,969 INFO L225 Difference]: With dead ends: 39771 [2021-11-07 18:59:53,970 INFO L226 Difference]: Without dead ends: 39765 [2021-11-07 18:59:53,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:59:53,984 INFO L933 BasicCegarLoop]: 14314 mSDtfsCounter, 14040 mSDsluCounter, 14308 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14040 SdHoareTripleChecker+Valid, 28622 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.61ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.86ms IncrementalHoareTripleChecker+Time [2021-11-07 18:59:53,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14040 Valid, 28622 Invalid, 16 Unknown, 0 Unchecked, 30.61ms Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 32.86ms Time] [2021-11-07 18:59:54,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39765 states. [2021-11-07 18:59:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39765 to 39765. [2021-11-07 18:59:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39765 states, 39078 states have (on average 1.3731767234761247) internal successors, (53661), 39116 states have internal predecessors, (53661), 536 states have call successors, (536), 148 states have call predecessors, (536), 148 states have return successors, (536), 528 states have call predecessors, (536), 536 states have call successors, (536) [2021-11-07 18:59:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39765 states to 39765 states and 54733 transitions. [2021-11-07 18:59:54,688 INFO L78 Accepts]: Start accepts. Automaton has 39765 states and 54733 transitions. Word has length 305 [2021-11-07 18:59:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:59:54,691 INFO L470 AbstractCegarLoop]: Abstraction has 39765 states and 54733 transitions. [2021-11-07 18:59:54,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 18:59:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 39765 states and 54733 transitions. [2021-11-07 18:59:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-07 18:59:54,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:59:54,716 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:54,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:59:54,716 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 18:59:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:59:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash -955215056, now seen corresponding path program 1 times [2021-11-07 18:59:54,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:59:54,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359183297] [2021-11-07 18:59:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:59:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:59:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:59:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 18:59:56,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:59:56,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359183297] [2021-11-07 18:59:56,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359183297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:59:56,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:59:56,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:59:56,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699822845] [2021-11-07 18:59:56,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:59:56,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:59:56,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:59:56,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:59:56,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:59:56,015 INFO L87 Difference]: Start difference. First operand 39765 states and 54733 transitions. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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 18:59:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:59:57,117 INFO L93 Difference]: Finished difference Result 78818 states and 109686 transitions. [2021-11-07 18:59:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 18:59:57,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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 307 [2021-11-07 18:59:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:59:57,546 INFO L225 Difference]: With dead ends: 78818 [2021-11-07 18:59:57,546 INFO L226 Difference]: Without dead ends: 78777 [2021-11-07 18:59:57,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:59:57,614 INFO L933 BasicCegarLoop]: 14698 mSDtfsCounter, 14150 mSDsluCounter, 28382 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14150 SdHoareTripleChecker+Valid, 43080 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.85ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.04ms IncrementalHoareTripleChecker+Time [2021-11-07 18:59:57,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14150 Valid, 43080 Invalid, 37 Unknown, 0 Unchecked, 38.85ms Time], IncrementalHoareTripleChecker [20 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 44.04ms Time] [2021-11-07 18:59:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78777 states. [2021-11-07 18:59:59,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78777 to 78633. [2021-11-07 18:59:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78633 states, 77274 states have (on average 1.3758314568936512) internal successors, (106316), 77352 states have internal predecessors, (106316), 1068 states have call successors, (1068), 296 states have call predecessors, (1068), 288 states have return successors, (2080), 1036 states have call predecessors, (2080), 1068 states have call successors, (2080) [2021-11-07 18:59:59,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78633 states to 78633 states and 109464 transitions. [2021-11-07 18:59:59,880 INFO L78 Accepts]: Start accepts. Automaton has 78633 states and 109464 transitions. Word has length 307 [2021-11-07 18:59:59,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:59:59,880 INFO L470 AbstractCegarLoop]: Abstraction has 78633 states and 109464 transitions. [2021-11-07 18:59:59,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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 18:59:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 78633 states and 109464 transitions. [2021-11-07 19:00:00,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-07 19:00:00,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:00:00,156 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:00:00,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:00:00,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 19:00:00,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:00:00,157 INFO L85 PathProgramCache]: Analyzing trace with hash -410665261, now seen corresponding path program 1 times [2021-11-07 19:00:00,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:00:00,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286909370] [2021-11-07 19:00:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:00:00,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:00:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-07 19:00:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 19:00:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-07 19:00:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-07 19:00:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 19:00:01,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:00:01,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286909370] [2021-11-07 19:00:01,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286909370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:00:01,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:00:01,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:00:01,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500051855] [2021-11-07 19:00:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:00:01,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:00:01,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:00:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:00:01,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:00:01,734 INFO L87 Difference]: Start difference. First operand 78633 states and 109464 transitions. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 19:00:04,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:06,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:23,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:27,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:31,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:00:35,453 INFO L93 Difference]: Finished difference Result 222302 states and 311280 transitions. [2021-11-07 19:00:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 19:00:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 400 [2021-11-07 19:00:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:00:36,407 INFO L225 Difference]: With dead ends: 222302 [2021-11-07 19:00:36,408 INFO L226 Difference]: Without dead ends: 144313 [2021-11-07 19:00:36,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 183.55ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:00:36,766 INFO L933 BasicCegarLoop]: 14365 mSDtfsCounter, 16543 mSDsluCounter, 24174 mSDsCounter, 0 mSdLazyCounter, 4939 mSolverCounterSat, 510 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27402.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16586 SdHoareTripleChecker+Valid, 38539 SdHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 156.14ms SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 4939 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29682.08ms IncrementalHoareTripleChecker+Time [2021-11-07 19:00:36,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16586 Valid, 38539 Invalid, 5454 Unknown, 0 Unchecked, 156.14ms Time], IncrementalHoareTripleChecker [510 Valid, 4939 Invalid, 5 Unknown, 0 Unchecked, 29682.08ms Time] [2021-11-07 19:00:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144313 states. [2021-11-07 19:00:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144313 to 138318. [2021-11-07 19:00:40,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138318 states, 135688 states have (on average 1.3759801898472968) internal successors, (186704), 135917 states have internal predecessors, (186704), 1877 states have call successors, (1877), 518 states have call predecessors, (1877), 750 states have return successors, (5081), 2001 states have call predecessors, (5081), 1877 states have call successors, (5081) [2021-11-07 19:00:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138318 states to 138318 states and 193662 transitions. [2021-11-07 19:00:41,358 INFO L78 Accepts]: Start accepts. Automaton has 138318 states and 193662 transitions. Word has length 400 [2021-11-07 19:00:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:00:41,359 INFO L470 AbstractCegarLoop]: Abstraction has 138318 states and 193662 transitions. [2021-11-07 19:00:41,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 19:00:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 138318 states and 193662 transitions. [2021-11-07 19:00:41,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-07 19:00:41,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:00:41,876 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:00:41,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:00:41,877 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 19:00:41,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:00:41,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1236560384, now seen corresponding path program 1 times [2021-11-07 19:00:41,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:00:41,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362430743] [2021-11-07 19:00:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:00:41,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:00:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-07 19:00:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 19:00:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-07 19:00:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-07 19:00:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:00:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 19:00:43,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:00:43,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362430743] [2021-11-07 19:00:43,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362430743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:00:43,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:00:43,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:00:43,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576825558] [2021-11-07 19:00:43,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:00:43,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:00:43,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:00:43,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:00:43,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:00:43,434 INFO L87 Difference]: Start difference. First operand 138318 states and 193662 transitions. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 19:00:45,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:00:47,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:03,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:10,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-07 19:01:12,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:13,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:16,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:01:21,543 INFO L93 Difference]: Finished difference Result 403832 states and 566325 transitions. [2021-11-07 19:01:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 19:01:21,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 413 [2021-11-07 19:01:21,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:01:23,319 INFO L225 Difference]: With dead ends: 403832 [2021-11-07 19:01:23,319 INFO L226 Difference]: Without dead ends: 266158 [2021-11-07 19:01:23,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 137.80ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:01:23,741 INFO L933 BasicCegarLoop]: 14336 mSDtfsCounter, 16571 mSDsluCounter, 24165 mSDsCounter, 0 mSdLazyCounter, 4920 mSolverCounterSat, 501 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27929.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16607 SdHoareTripleChecker+Valid, 38501 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 131.31ms SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 4920 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30451.40ms IncrementalHoareTripleChecker+Time [2021-11-07 19:01:23,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16607 Valid, 38501 Invalid, 5426 Unknown, 0 Unchecked, 131.31ms Time], IncrementalHoareTripleChecker [501 Valid, 4920 Invalid, 5 Unknown, 0 Unchecked, 30451.40ms Time] [2021-11-07 19:01:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266158 states. [2021-11-07 19:01:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266158 to 255081. [2021-11-07 19:01:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255081 states, 250307 states have (on average 1.3765456020007432) internal successors, (344559), 250731 states have internal predecessors, (344559), 3379 states have call successors, (3379), 962 states have call predecessors, (3379), 1392 states have return successors, (9113), 3608 states have call predecessors, (9113), 3379 states have call successors, (9113) [2021-11-07 19:01:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255081 states to 255081 states and 357051 transitions. [2021-11-07 19:01:32,391 INFO L78 Accepts]: Start accepts. Automaton has 255081 states and 357051 transitions. Word has length 413 [2021-11-07 19:01:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:01:32,392 INFO L470 AbstractCegarLoop]: Abstraction has 255081 states and 357051 transitions. [2021-11-07 19:01:32,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 19:01:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 255081 states and 357051 transitions. [2021-11-07 19:01:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-07 19:01:32,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:01:32,643 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:32,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 19:01:32,643 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 19:01:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:01:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1821897308, now seen corresponding path program 1 times [2021-11-07 19:01:32,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:01:32,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016111863] [2021-11-07 19:01:32,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:01:32,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:01:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-07 19:01:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 19:01:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-07 19:01:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-07 19:01:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-07 19:01:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-07 19:01:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:01:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 19:01:33,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:01:33,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016111863] [2021-11-07 19:01:33,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016111863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:01:33,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:01:33,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 19:01:33,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275488477] [2021-11-07 19:01:33,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:01:33,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 19:01:33,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:01:33,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 19:01:33,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:01:33,995 INFO L87 Difference]: Start difference. First operand 255081 states and 357051 transitions. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 4 states have internal predecessors, (410), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-07 19:01:36,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:01:38,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []