./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 08:45:06,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:45:06,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:45:06,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:45:06,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:45:06,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:45:06,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:45:06,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:45:06,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:45:06,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:45:06,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:45:06,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:45:06,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:45:06,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:45:06,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:45:06,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:45:06,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:45:06,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:45:06,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:45:06,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:45:06,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:45:06,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:45:06,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:45:06,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:45:06,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:45:06,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:45:06,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:45:06,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:45:06,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:45:06,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:45:06,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:45:06,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:45:06,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:45:06,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:45:06,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:45:06,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:45:06,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:45:06,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:45:06,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:45:06,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:45:06,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:45:06,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:45:06,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:45:06,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:45:06,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:45:06,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:45:06,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:45:06,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:45:06,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:45:06,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:45:06,346 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:45:06,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:45:06,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:45:06,347 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:45:06,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:45:06,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:45:06,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:45:06,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:45:06,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:45:06,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:45:06,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:45:06,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:45:06,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:45:06,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2021-12-18 08:45:06,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:45:06,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:45:06,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:45:06,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:45:06,531 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:45:06,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-12-18 08:45:06,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a187b20/614c4d88c2434eabb058fa47e58e7212/FLAGaeb4d6ff0 [2021-12-18 08:45:07,200 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:45:07,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-12-18 08:45:07,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a187b20/614c4d88c2434eabb058fa47e58e7212/FLAGaeb4d6ff0 [2021-12-18 08:45:07,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a187b20/614c4d88c2434eabb058fa47e58e7212 [2021-12-18 08:45:07,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:45:07,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:45:07,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:45:07,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:45:07,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:45:07,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:45:07" (1/1) ... [2021-12-18 08:45:07,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b8db90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:07, skipping insertion in model container [2021-12-18 08:45:07,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:45:07" (1/1) ... [2021-12-18 08:45:07,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:45:07,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:45:08,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2021-12-18 08:45:08,821 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 08:45:08,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:45:08,896 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:45:09,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2021-12-18 08:45:09,128 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 08:45:09,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:45:09,222 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:45:09,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09 WrapperNode [2021-12-18 08:45:09,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:45:09,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:45:09,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:45:09,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:45:09,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,398 INFO L137 Inliner]: procedures = 275, calls = 1982, calls flagged for inlining = 131, calls inlined = 123, statements flattened = 4568 [2021-12-18 08:45:09,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:45:09,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:45:09,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:45:09,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:45:09,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:45:09,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:45:09,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:45:09,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:45:09,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (1/1) ... [2021-12-18 08:45:09,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:45:09,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:45:09,676 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) [2021-12-18 08:45:09,690 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 [2021-12-18 08:45:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 08:45:09,709 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2021-12-18 08:45:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 08:45:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:45:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:45:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:45:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:45:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 08:45:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 08:45:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 08:45:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 08:45:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-12-18 08:45:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-12-18 08:45:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:45:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:45:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-18 08:45:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-18 08:45:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-12-18 08:45:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-12-18 08:45:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 08:45:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 08:45:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-12-18 08:45:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-12-18 08:45:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-18 08:45:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-18 08:45:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 08:45:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 08:45:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:45:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:45:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-12-18 08:45:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-12-18 08:45:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 08:45:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 08:45:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 08:45:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 08:45:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 08:45:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 08:45:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:45:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:45:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 08:45:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 08:45:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 08:45:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 08:45:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-12-18 08:45:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-12-18 08:45:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-12-18 08:45:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-12-18 08:45:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 08:45:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 08:45:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:45:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-12-18 08:45:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-12-18 08:45:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 08:45:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 08:45:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:45:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 08:45:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 08:45:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 08:45:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-18 08:45:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-18 08:45:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2021-12-18 08:45:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2021-12-18 08:45:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 08:45:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 08:45:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-12-18 08:45:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-12-18 08:45:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-12-18 08:45:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-12-18 08:45:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 08:45:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 08:45:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:45:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-12-18 08:45:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-12-18 08:45:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-18 08:45:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-18 08:45:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:45:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-18 08:45:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-18 08:45:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-18 08:45:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-18 08:45:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 08:45:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 08:45:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-12-18 08:45:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-12-18 08:45:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-18 08:45:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-18 08:45:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 08:45:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 08:45:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 08:45:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 08:45:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 08:45:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 08:45:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 08:45:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 08:45:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-12-18 08:45:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-12-18 08:45:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 08:45:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-12-18 08:45:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-12-18 08:45:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 08:45:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 08:45:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 08:45:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-12-18 08:45:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-12-18 08:45:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-12-18 08:45:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-12-18 08:45:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:45:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 08:45:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 08:45:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 08:45:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 08:45:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-12-18 08:45:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-12-18 08:45:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 08:45:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 08:45:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-18 08:45:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-18 08:45:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-12-18 08:45:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-12-18 08:45:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 08:45:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 08:45:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:45:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:45:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-18 08:45:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-18 08:45:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 08:45:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 08:45:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-12-18 08:45:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-12-18 08:45:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 08:45:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 08:45:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:45:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 08:45:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 08:45:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-18 08:45:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-18 08:45:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-12-18 08:45:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-12-18 08:45:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-18 08:45:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-18 08:45:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 08:45:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 08:45:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-12-18 08:45:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-12-18 08:45:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-12-18 08:45:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-12-18 08:45:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:45:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:45:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:45:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-12-18 08:45:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-12-18 08:45:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 08:45:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 08:45:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 08:45:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 08:45:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:45:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 08:45:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 08:45:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 08:45:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 08:45:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:45:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 08:45:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-12-18 08:45:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-12-18 08:45:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 08:45:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 08:45:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2021-12-18 08:45:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2021-12-18 08:45:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2021-12-18 08:45:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2021-12-18 08:45:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 08:45:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 08:45:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-12-18 08:45:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-12-18 08:45:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-12-18 08:45:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-12-18 08:45:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 08:45:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 08:45:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-12-18 08:45:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-12-18 08:45:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 08:45:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 08:45:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-12-18 08:45:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-12-18 08:45:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:45:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-12-18 08:45:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-12-18 08:45:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-18 08:45:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-18 08:45:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-12-18 08:45:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-12-18 08:45:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-18 08:45:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-18 08:45:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:45:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:45:10,240 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:45:10,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:45:10,547 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:45:14,251 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:45:14,263 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:45:14,263 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 08:45:14,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:45:14 BoogieIcfgContainer [2021-12-18 08:45:14,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:45:14,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:45:14,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:45:14,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:45:14,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:45:07" (1/3) ... [2021-12-18 08:45:14,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c650c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:45:14, skipping insertion in model container [2021-12-18 08:45:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:09" (2/3) ... [2021-12-18 08:45:14,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c650c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:45:14, skipping insertion in model container [2021-12-18 08:45:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:45:14" (3/3) ... [2021-12-18 08:45:14,271 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-12-18 08:45:14,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:45:14,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:45:14,307 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:45:14,311 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 [2021-12-18 08:45:14,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:45:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) [2021-12-18 08:45:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 08:45:14,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:14,373 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:45:14,374 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:14,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:14,377 INFO L85 PathProgramCache]: Analyzing trace with hash -754527677, now seen corresponding path program 1 times [2021-12-18 08:45:14,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:14,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092350849] [2021-12-18 08:45:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:14,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:45:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:45:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-18 08:45:15,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092350849] [2021-12-18 08:45:15,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092350849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:15,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:15,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:45:15,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367999404] [2021-12-18 08:45:15,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:15,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:45:15,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:45:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:45:15,136 INFO L87 Difference]: Start difference. First operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:45:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:17,366 INFO L93 Difference]: Finished difference Result 3472 states and 5013 transitions. [2021-12-18 08:45:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 08:45:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2021-12-18 08:45:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:17,386 INFO L225 Difference]: With dead ends: 3472 [2021-12-18 08:45:17,387 INFO L226 Difference]: Without dead ends: 1828 [2021-12-18 08:45:17,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:45:17,399 INFO L933 BasicCegarLoop]: 2138 mSDtfsCounter, 1542 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:17,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 3225 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 08:45:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-12-18 08:45:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1601. [2021-12-18 08:45:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1110 states have (on average 1.3117117117117116) internal successors, (1456), 1126 states have internal predecessors, (1456), 401 states have call successors, (401), 90 states have call predecessors, (401), 89 states have return successors, (400), 399 states have call predecessors, (400), 400 states have call successors, (400) [2021-12-18 08:45:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2257 transitions. [2021-12-18 08:45:17,539 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2257 transitions. Word has length 175 [2021-12-18 08:45:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:17,539 INFO L470 AbstractCegarLoop]: Abstraction has 1601 states and 2257 transitions. [2021-12-18 08:45:17,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:45:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2257 transitions. [2021-12-18 08:45:17,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 08:45:17,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:17,544 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:45:17,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:45:17,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:17,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:17,545 INFO L85 PathProgramCache]: Analyzing trace with hash -890110471, now seen corresponding path program 1 times [2021-12-18 08:45:17,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:17,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208281826] [2021-12-18 08:45:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:17,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:45:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:45:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-18 08:45:17,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:17,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208281826] [2021-12-18 08:45:17,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208281826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:17,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:17,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 08:45:17,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221074465] [2021-12-18 08:45:17,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:17,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 08:45:17,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:17,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 08:45:17,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:45:17,826 INFO L87 Difference]: Start difference. First operand 1601 states and 2257 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:45:22,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:22,413 INFO L93 Difference]: Finished difference Result 4618 states and 6599 transitions. [2021-12-18 08:45:22,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:45:22,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2021-12-18 08:45:22,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:22,428 INFO L225 Difference]: With dead ends: 4618 [2021-12-18 08:45:22,428 INFO L226 Difference]: Without dead ends: 3045 [2021-12-18 08:45:22,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:22,433 INFO L933 BasicCegarLoop]: 2306 mSDtfsCounter, 3001 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 2194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 6965 SdHoareTripleChecker+Invalid, 5139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2194 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:22,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3213 Valid, 6965 Invalid, 5139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2194 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-18 08:45:22,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2021-12-18 08:45:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2654. [2021-12-18 08:45:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 1845 states have (on average 1.3154471544715447) internal successors, (2427), 1870 states have internal predecessors, (2427), 650 states have call successors, (650), 159 states have call predecessors, (650), 158 states have return successors, (653), 646 states have call predecessors, (653), 649 states have call successors, (653) [2021-12-18 08:45:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3730 transitions. [2021-12-18 08:45:22,531 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3730 transitions. Word has length 175 [2021-12-18 08:45:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:22,532 INFO L470 AbstractCegarLoop]: Abstraction has 2654 states and 3730 transitions. [2021-12-18 08:45:22,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 08:45:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3730 transitions. [2021-12-18 08:45:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-18 08:45:22,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:22,538 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-18 08:45:22,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:45:22,539 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:22,539 INFO L85 PathProgramCache]: Analyzing trace with hash -950283336, now seen corresponding path program 1 times [2021-12-18 08:45:22,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:22,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773529820] [2021-12-18 08:45:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:22,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 08:45:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:45:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 08:45:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 08:45:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:45:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:45:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:45:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 08:45:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 08:45:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:45:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:45:22,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:22,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773529820] [2021-12-18 08:45:22,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773529820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:22,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:22,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:45:22,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155964064] [2021-12-18 08:45:22,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:22,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:45:22,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:22,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:45:22,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:22,986 INFO L87 Difference]: Start difference. First operand 2654 states and 3730 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:31,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:31,518 INFO L93 Difference]: Finished difference Result 8697 states and 12443 transitions. [2021-12-18 08:45:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:31,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 237 [2021-12-18 08:45:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:31,547 INFO L225 Difference]: With dead ends: 8697 [2021-12-18 08:45:31,547 INFO L226 Difference]: Without dead ends: 6075 [2021-12-18 08:45:31,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:31,560 INFO L933 BasicCegarLoop]: 2362 mSDtfsCounter, 4966 mSDsluCounter, 7535 mSDsCounter, 0 mSdLazyCounter, 8371 mSolverCounterSat, 4030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5320 SdHoareTripleChecker+Valid, 9897 SdHoareTripleChecker+Invalid, 12401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4030 IncrementalHoareTripleChecker+Valid, 8371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:31,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5320 Valid, 9897 Invalid, 12401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4030 Valid, 8371 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-12-18 08:45:31,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2021-12-18 08:45:31,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 5282. [2021-12-18 08:45:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 3677 states have (on average 1.3154745716616807) internal successors, (4837), 3727 states have internal predecessors, (4837), 1288 states have call successors, (1288), 317 states have call predecessors, (1288), 316 states have return successors, (1297), 1281 states have call predecessors, (1297), 1287 states have call successors, (1297) [2021-12-18 08:45:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 7422 transitions. [2021-12-18 08:45:31,756 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 7422 transitions. Word has length 237 [2021-12-18 08:45:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:31,757 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 7422 transitions. [2021-12-18 08:45:31,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 7422 transitions. [2021-12-18 08:45:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 08:45:31,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:31,762 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-18 08:45:31,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 08:45:31,763 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:31,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash -830566666, now seen corresponding path program 1 times [2021-12-18 08:45:31,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:31,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786494829] [2021-12-18 08:45:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:31,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 08:45:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 08:45:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 08:45:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 08:45:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:45:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:45:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:45:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 08:45:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 08:45:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 08:45:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:45:32,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:32,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786494829] [2021-12-18 08:45:32,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786494829] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:32,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:32,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:45:32,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759144273] [2021-12-18 08:45:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:32,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:45:32,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:45:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:32,123 INFO L87 Difference]: Start difference. First operand 5282 states and 7422 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:39,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:39,375 INFO L93 Difference]: Finished difference Result 17376 states and 24833 transitions. [2021-12-18 08:45:39,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:39,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 238 [2021-12-18 08:45:39,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:39,450 INFO L225 Difference]: With dead ends: 17376 [2021-12-18 08:45:39,450 INFO L226 Difference]: Without dead ends: 12126 [2021-12-18 08:45:39,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:39,473 INFO L933 BasicCegarLoop]: 2193 mSDtfsCounter, 5213 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 6866 mSolverCounterSat, 4186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5566 SdHoareTripleChecker+Valid, 8880 SdHoareTripleChecker+Invalid, 11052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4186 IncrementalHoareTripleChecker+Valid, 6866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:39,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5566 Valid, 8880 Invalid, 11052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4186 Valid, 6866 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-12-18 08:45:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12126 states. [2021-12-18 08:45:39,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12126 to 10549. [2021-12-18 08:45:39,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10549 states, 7350 states have (on average 1.3151020408163265) internal successors, (9666), 7450 states have internal predecessors, (9666), 2564 states have call successors, (2564), 635 states have call predecessors, (2564), 634 states have return successors, (2587), 2551 states have call predecessors, (2587), 2563 states have call successors, (2587) [2021-12-18 08:45:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10549 states to 10549 states and 14817 transitions. [2021-12-18 08:45:39,841 INFO L78 Accepts]: Start accepts. Automaton has 10549 states and 14817 transitions. Word has length 238 [2021-12-18 08:45:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:39,842 INFO L470 AbstractCegarLoop]: Abstraction has 10549 states and 14817 transitions. [2021-12-18 08:45:39,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10549 states and 14817 transitions. [2021-12-18 08:45:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-18 08:45:39,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:39,851 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-18 08:45:39,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 08:45:39,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash -676357451, now seen corresponding path program 1 times [2021-12-18 08:45:39,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:39,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226331903] [2021-12-18 08:45:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:39,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:39,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:45:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:45:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 08:45:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:45:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:45:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 08:45:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 08:45:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 08:45:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:45:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 08:45:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:45:40,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:40,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226331903] [2021-12-18 08:45:40,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226331903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:40,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:40,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:45:40,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579455702] [2021-12-18 08:45:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:40,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:45:40,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:45:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:40,319 INFO L87 Difference]: Start difference. First operand 10549 states and 14817 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:46,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:46,679 INFO L93 Difference]: Finished difference Result 34751 states and 49605 transitions. [2021-12-18 08:45:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 235 [2021-12-18 08:45:46,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:46,799 INFO L225 Difference]: With dead ends: 34751 [2021-12-18 08:45:46,799 INFO L226 Difference]: Without dead ends: 24234 [2021-12-18 08:45:46,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:46,843 INFO L933 BasicCegarLoop]: 2356 mSDtfsCounter, 6000 mSDsluCounter, 6169 mSDsCounter, 0 mSdLazyCounter, 6160 mSolverCounterSat, 5207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6352 SdHoareTripleChecker+Valid, 8525 SdHoareTripleChecker+Invalid, 11367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5207 IncrementalHoareTripleChecker+Valid, 6160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:46,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6352 Valid, 8525 Invalid, 11367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5207 Valid, 6160 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-18 08:45:46,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24234 states. [2021-12-18 08:45:47,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24234 to 21009. [2021-12-18 08:45:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21009 states, 14634 states have (on average 1.3154298209648763) internal successors, (19250), 14858 states have internal predecessors, (19250), 5108 states have call successors, (5108), 1267 states have call predecessors, (5108), 1266 states have return successors, (5163), 5059 states have call predecessors, (5163), 5107 states have call successors, (5163) [2021-12-18 08:45:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21009 states to 21009 states and 29521 transitions. [2021-12-18 08:45:47,520 INFO L78 Accepts]: Start accepts. Automaton has 21009 states and 29521 transitions. Word has length 235 [2021-12-18 08:45:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:47,521 INFO L470 AbstractCegarLoop]: Abstraction has 21009 states and 29521 transitions. [2021-12-18 08:45:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 21009 states and 29521 transitions. [2021-12-18 08:45:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-18 08:45:47,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:47,528 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-18 08:45:47,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 08:45:47,528 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash -749220589, now seen corresponding path program 1 times [2021-12-18 08:45:47,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:47,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539169044] [2021-12-18 08:45:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:47,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 08:45:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 08:45:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 08:45:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 08:45:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 08:45:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 08:45:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 08:45:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 08:45:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:45:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 08:45:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:45:47,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:47,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539169044] [2021-12-18 08:45:47,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539169044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:47,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:47,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:45:47,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406656773] [2021-12-18 08:45:47,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:47,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:45:47,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:47,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:45:47,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:47,891 INFO L87 Difference]: Start difference. First operand 21009 states and 29521 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:55,937 INFO L93 Difference]: Finished difference Result 68870 states and 98219 transitions. [2021-12-18 08:45:55,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:55,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 236 [2021-12-18 08:45:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:56,129 INFO L225 Difference]: With dead ends: 68870 [2021-12-18 08:45:56,129 INFO L226 Difference]: Without dead ends: 47893 [2021-12-18 08:45:56,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:56,210 INFO L933 BasicCegarLoop]: 2355 mSDtfsCounter, 5211 mSDsluCounter, 6823 mSDsCounter, 0 mSdLazyCounter, 7242 mSolverCounterSat, 4167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5566 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 11409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4167 IncrementalHoareTripleChecker+Valid, 7242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:56,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5566 Valid, 9178 Invalid, 11409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4167 Valid, 7242 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-18 08:45:56,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47893 states. [2021-12-18 08:45:57,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47893 to 41766. [2021-12-18 08:45:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41766 states, 29110 states have (on average 1.3141875644108554) internal successors, (38256), 29542 states have internal predecessors, (38256), 10123 states have call successors, (10123), 2533 states have call predecessors, (10123), 2532 states have return successors, (10250), 10036 states have call predecessors, (10250), 10122 states have call successors, (10250) [2021-12-18 08:45:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41766 states to 41766 states and 58629 transitions. [2021-12-18 08:45:57,844 INFO L78 Accepts]: Start accepts. Automaton has 41766 states and 58629 transitions. Word has length 236 [2021-12-18 08:45:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:57,845 INFO L470 AbstractCegarLoop]: Abstraction has 41766 states and 58629 transitions. [2021-12-18 08:45:57,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 08:45:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 41766 states and 58629 transitions. [2021-12-18 08:45:57,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-18 08:45:57,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:57,851 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-18 08:45:57,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 08:45:57,851 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:57,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1205666229, now seen corresponding path program 1 times [2021-12-18 08:45:57,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:57,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615159590] [2021-12-18 08:45:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:57,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:45:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:45:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:45:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:45:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 08:45:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:45:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 08:45:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:45:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 08:45:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 08:45:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 08:45:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 08:45:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 08:45:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 08:45:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 08:45:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-12-18 08:45:58,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:58,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615159590] [2021-12-18 08:45:58,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615159590] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:45:58,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629548527] [2021-12-18 08:45:58,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:58,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:45:58,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:45:58,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:45:58,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 08:45:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:59,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 3775 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:45:59,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:45:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:45:59,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:45:59,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629548527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:59,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:45:59,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-12-18 08:45:59,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92580568] [2021-12-18 08:45:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:59,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:45:59,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:59,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:45:59,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-18 08:45:59,506 INFO L87 Difference]: Start difference. First operand 41766 states and 58629 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:01,228 INFO L93 Difference]: Finished difference Result 104610 states and 146803 transitions. [2021-12-18 08:46:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 248 [2021-12-18 08:46:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:01,585 INFO L225 Difference]: With dead ends: 104610 [2021-12-18 08:46:01,585 INFO L226 Difference]: Without dead ends: 62876 [2021-12-18 08:46:01,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:46:01,672 INFO L933 BasicCegarLoop]: 3688 mSDtfsCounter, 2277 mSDsluCounter, 16966 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 20654 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:01,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 20654 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62876 states. [2021-12-18 08:46:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62876 to 62581. [2021-12-18 08:46:03,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62581 states, 43644 states have (on average 1.3145220419759875) internal successors, (57371), 44308 states have internal predecessors, (57371), 15130 states have call successors, (15130), 3791 states have call predecessors, (15130), 3806 states have return successors, (15369), 14997 states have call predecessors, (15369), 15129 states have call successors, (15369) [2021-12-18 08:46:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62581 states to 62581 states and 87870 transitions. [2021-12-18 08:46:03,764 INFO L78 Accepts]: Start accepts. Automaton has 62581 states and 87870 transitions. Word has length 248 [2021-12-18 08:46:03,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:03,764 INFO L470 AbstractCegarLoop]: Abstraction has 62581 states and 87870 transitions. [2021-12-18 08:46:03,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 62581 states and 87870 transitions. [2021-12-18 08:46:03,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 08:46:03,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:03,771 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:46:03,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 08:46:03,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:03,995 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:03,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:03,996 INFO L85 PathProgramCache]: Analyzing trace with hash 104275740, now seen corresponding path program 1 times [2021-12-18 08:46:03,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:03,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441853158] [2021-12-18 08:46:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:03,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:46:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:46:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:46:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:46:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:46:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:46:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 08:46:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:46:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 08:46:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:46:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 08:46:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:46:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 08:46:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 08:46:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:46:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 08:46:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 08:46:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:04,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:04,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441853158] [2021-12-18 08:46:04,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441853158] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:04,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075584367] [2021-12-18 08:46:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:04,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:04,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:04,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:46:04,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 08:46:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:05,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 3777 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:05,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:05,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:05,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075584367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:05,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:05,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:46:05,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025355739] [2021-12-18 08:46:05,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:05,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:05,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:05,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:05,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:46:05,459 INFO L87 Difference]: Start difference. First operand 62581 states and 87870 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:07,622 INFO L93 Difference]: Finished difference Result 146346 states and 205377 transitions. [2021-12-18 08:46:07,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:07,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 249 [2021-12-18 08:46:07,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:07,876 INFO L225 Difference]: With dead ends: 146346 [2021-12-18 08:46:07,876 INFO L226 Difference]: Without dead ends: 83797 [2021-12-18 08:46:08,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:46:08,022 INFO L933 BasicCegarLoop]: 3825 mSDtfsCounter, 2277 mSDsluCounter, 17502 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 21327 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:08,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 21327 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83797 states. [2021-12-18 08:46:10,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83797 to 83460. [2021-12-18 08:46:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83460 states, 58218 states have (on average 1.3144731869868425) internal successors, (76526), 59146 states have internal predecessors, (76526), 20137 states have call successors, (20137), 5049 states have call predecessors, (20137), 5104 states have return successors, (20512), 19950 states have call predecessors, (20512), 20136 states have call successors, (20512) [2021-12-18 08:46:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83460 states to 83460 states and 117175 transitions. [2021-12-18 08:46:10,799 INFO L78 Accepts]: Start accepts. Automaton has 83460 states and 117175 transitions. Word has length 249 [2021-12-18 08:46:10,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:10,800 INFO L470 AbstractCegarLoop]: Abstraction has 83460 states and 117175 transitions. [2021-12-18 08:46:10,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:10,800 INFO L276 IsEmpty]: Start isEmpty. Operand 83460 states and 117175 transitions. [2021-12-18 08:46:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 08:46:10,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:10,808 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:46:10,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 08:46:11,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-18 08:46:11,024 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:11,024 INFO L85 PathProgramCache]: Analyzing trace with hash -946809956, now seen corresponding path program 1 times [2021-12-18 08:46:11,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:11,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519892924] [2021-12-18 08:46:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:11,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:46:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:46:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:46:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:46:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:46:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:46:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 08:46:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 08:46:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:46:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 08:46:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:46:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:46:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 08:46:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 08:46:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 08:46:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 08:46:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:46:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:11,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:11,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519892924] [2021-12-18 08:46:11,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519892924] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:11,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544902918] [2021-12-18 08:46:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:11,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:11,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:46:11,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 08:46:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:12,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 3779 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:12,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:12,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:12,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544902918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:12,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:12,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:46:12,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665295361] [2021-12-18 08:46:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:12,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:12,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:46:12,545 INFO L87 Difference]: Start difference. First operand 83460 states and 117175 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:15,304 INFO L93 Difference]: Finished difference Result 188082 states and 263951 transitions. [2021-12-18 08:46:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 250 [2021-12-18 08:46:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:15,721 INFO L225 Difference]: With dead ends: 188082 [2021-12-18 08:46:15,722 INFO L226 Difference]: Without dead ends: 104654 [2021-12-18 08:46:16,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:46:16,127 INFO L933 BasicCegarLoop]: 3825 mSDtfsCounter, 2277 mSDsluCounter, 17502 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 21327 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:16,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 21327 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104654 states. [2021-12-18 08:46:18,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104654 to 83504. [2021-12-18 08:46:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83504 states, 58250 states have (on average 1.3143004291845493) internal successors, (76558), 59182 states have internal predecessors, (76558), 20137 states have call successors, (20137), 5049 states have call predecessors, (20137), 5116 states have return successors, (20530), 19958 states have call predecessors, (20530), 20136 states have call successors, (20530) [2021-12-18 08:46:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83504 states to 83504 states and 117225 transitions. [2021-12-18 08:46:19,266 INFO L78 Accepts]: Start accepts. Automaton has 83504 states and 117225 transitions. Word has length 250 [2021-12-18 08:46:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:19,267 INFO L470 AbstractCegarLoop]: Abstraction has 83504 states and 117225 transitions. [2021-12-18 08:46:19,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:19,267 INFO L276 IsEmpty]: Start isEmpty. Operand 83504 states and 117225 transitions. [2021-12-18 08:46:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-18 08:46:19,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:19,294 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:46:19,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:19,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:19,524 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash -438447069, now seen corresponding path program 1 times [2021-12-18 08:46:19,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:19,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371709298] [2021-12-18 08:46:19,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:19,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:46:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:46:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:46:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:46:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:46:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:46:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:46:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 08:46:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 08:46:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:46:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:46:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 08:46:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 08:46:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:46:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 08:46:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 08:46:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 08:46:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:19,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371709298] [2021-12-18 08:46:19,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371709298] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224325858] [2021-12-18 08:46:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:19,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:19,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:46:19,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 08:46:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:20,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:20,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2021-12-18 08:46:20,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:20,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224325858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:20,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:20,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:46:20,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158548837] [2021-12-18 08:46:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:20,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:20,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:46:20,933 INFO L87 Difference]: Start difference. First operand 83504 states and 117225 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:23,702 INFO L93 Difference]: Finished difference Result 188142 states and 264017 transitions. [2021-12-18 08:46:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:23,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 251 [2021-12-18 08:46:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:24,158 INFO L225 Difference]: With dead ends: 188142 [2021-12-18 08:46:24,158 INFO L226 Difference]: Without dead ends: 104670 [2021-12-18 08:46:24,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:46:24,613 INFO L933 BasicCegarLoop]: 3825 mSDtfsCounter, 2277 mSDsluCounter, 17502 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 21327 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:24,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 21327 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104670 states. [2021-12-18 08:46:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104670 to 83530. [2021-12-18 08:46:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83530 states, 58270 states have (on average 1.314192551913506) internal successors, (76578), 59200 states have internal predecessors, (76578), 20137 states have call successors, (20137), 5049 states have call predecessors, (20137), 5122 states have return successors, (20536), 19966 states have call predecessors, (20536), 20136 states have call successors, (20536) [2021-12-18 08:46:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83530 states to 83530 states and 117251 transitions. [2021-12-18 08:46:27,376 INFO L78 Accepts]: Start accepts. Automaton has 83530 states and 117251 transitions. Word has length 251 [2021-12-18 08:46:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:27,377 INFO L470 AbstractCegarLoop]: Abstraction has 83530 states and 117251 transitions. [2021-12-18 08:46:27,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:46:27,377 INFO L276 IsEmpty]: Start isEmpty. Operand 83530 states and 117251 transitions. [2021-12-18 08:46:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 08:46:27,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:27,386 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-18 08:46:27,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:27,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:27,608 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash -182616322, now seen corresponding path program 1 times [2021-12-18 08:46:27,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:27,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584200543] [2021-12-18 08:46:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:27,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:46:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:46:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:46:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:46:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:46:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:46:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 08:46:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 08:46:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:46:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:46:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 08:46:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 08:46:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 08:46:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 08:46:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 08:46:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 08:46:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 08:46:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 08:46:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-18 08:46:28,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:28,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584200543] [2021-12-18 08:46:28,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584200543] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140160514] [2021-12-18 08:46:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:28,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:28,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:28,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:46:28,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 08:46:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 3848 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:46:28,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-18 08:46:29,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:46:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-18 08:46:29,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140160514] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:46:29,927 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:46:29,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2021-12-18 08:46:29,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536207350] [2021-12-18 08:46:29,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:46:29,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 08:46:29,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 08:46:29,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:46:29,930 INFO L87 Difference]: Start difference. First operand 83530 states and 117251 transitions. Second operand has 24 states, 24 states have (on average 7.916666666666667) internal successors, (190), 15 states have internal predecessors, (190), 5 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (56), 6 states have call predecessors, (56), 5 states have call successors, (56) [2021-12-18 08:47:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:47:16,833 INFO L93 Difference]: Finished difference Result 268040 states and 385107 transitions. [2021-12-18 08:47:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-12-18 08:47:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.916666666666667) internal successors, (190), 15 states have internal predecessors, (190), 5 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (56), 6 states have call predecessors, (56), 5 states have call successors, (56) Word has length 264 [2021-12-18 08:47:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:47:17,952 INFO L225 Difference]: With dead ends: 268040 [2021-12-18 08:47:17,953 INFO L226 Difference]: Without dead ends: 184150 [2021-12-18 08:47:18,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 620 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8954 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3408, Invalid=20154, Unknown=0, NotChecked=0, Total=23562 [2021-12-18 08:47:18,191 INFO L933 BasicCegarLoop]: 6713 mSDtfsCounter, 18515 mSDsluCounter, 50571 mSDsCounter, 0 mSdLazyCounter, 62360 mSolverCounterSat, 18693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19270 SdHoareTripleChecker+Valid, 57284 SdHoareTripleChecker+Invalid, 81053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18693 IncrementalHoareTripleChecker+Valid, 62360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2021-12-18 08:47:18,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19270 Valid, 57284 Invalid, 81053 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18693 Valid, 62360 Invalid, 0 Unknown, 0 Unchecked, 37.7s Time] [2021-12-18 08:47:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184150 states. [2021-12-18 08:47:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184150 to 145285. [2021-12-18 08:47:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145285 states, 101354 states have (on average 1.3136531365313653) internal successors, (133144), 102940 states have internal predecessors, (133144), 35014 states have call successors, (35014), 8829 states have call predecessors, (35014), 8916 states have return successors, (35645), 34699 states have call predecessors, (35645), 35013 states have call successors, (35645) [2021-12-18 08:47:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145285 states to 145285 states and 203803 transitions. [2021-12-18 08:47:23,675 INFO L78 Accepts]: Start accepts. Automaton has 145285 states and 203803 transitions. Word has length 264 [2021-12-18 08:47:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:47:23,677 INFO L470 AbstractCegarLoop]: Abstraction has 145285 states and 203803 transitions. [2021-12-18 08:47:23,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.916666666666667) internal successors, (190), 15 states have internal predecessors, (190), 5 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (56), 6 states have call predecessors, (56), 5 states have call successors, (56) [2021-12-18 08:47:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 145285 states and 203803 transitions. [2021-12-18 08:47:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-18 08:47:23,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:47:23,687 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-18 08:47:23,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 08:47:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-18 08:47:23,908 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:47:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:47:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1886111106, now seen corresponding path program 1 times [2021-12-18 08:47:23,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:47:23,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113794977] [2021-12-18 08:47:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:47:23,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:47:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:47:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:47:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:47:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:47:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:47:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 08:47:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:47:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:47:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:47:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:47:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 08:47:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 08:47:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:47:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:47:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 08:47:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 08:47:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 08:47:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:47:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 08:47:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:47:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 08:47:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:47:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:47:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 08:47:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-18 08:47:24,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:47:24,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113794977] [2021-12-18 08:47:24,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113794977] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:47:24,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312897222] [2021-12-18 08:47:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:47:24,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:47:24,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:47:24,325 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:47:24,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 08:47:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:47:25,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 3850 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:47:25,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:47:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-18 08:47:25,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:47:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-18 08:47:26,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312897222] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:47:26,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:47:26,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2021-12-18 08:47:26,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503347465] [2021-12-18 08:47:26,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:47:26,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 08:47:26,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:47:26,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 08:47:26,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:47:26,327 INFO L87 Difference]: Start difference. First operand 145285 states and 203803 transitions. Second operand has 24 states, 24 states have (on average 8.0) internal successors, (192), 15 states have internal predecessors, (192), 5 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (56), 6 states have call predecessors, (56), 5 states have call successors, (56) [2021-12-18 08:48:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:48:13,565 INFO L93 Difference]: Finished difference Result 454587 states and 651539 transitions. [2021-12-18 08:48:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-12-18 08:48:13,566 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.0) internal successors, (192), 15 states have internal predecessors, (192), 5 states have call successors, (64), 9 states have call predecessors, (64), 7 states have return successors, (56), 6 states have call predecessors, (56), 5 states have call successors, (56) Word has length 265 [2021-12-18 08:48:13,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:48:15,133 INFO L225 Difference]: With dead ends: 454587 [2021-12-18 08:48:15,133 INFO L226 Difference]: Without dead ends: 308690