./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--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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--ethernet--hp--hp100.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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:44:42,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:44:42,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:44:42,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:44:42,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:44:42,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:44:42,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:44:42,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:44:42,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:44:42,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:44:42,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:44:42,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:44:42,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:44:42,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:44:42,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:44:42,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:44:42,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:44:42,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:44:42,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:44:42,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:44:42,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:44:42,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:44:42,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:44:42,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:44:42,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:44:42,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:44:42,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:44:42,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:44:42,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:44:42,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:44:42,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:44:42,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:44:42,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:44:42,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:44:42,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:44:42,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:44:42,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:44:42,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:44:42,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:44:42,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:44:42,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:44:42,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:44:42,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:44:42,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:44:42,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:44:42,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:44:42,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:44:42,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:44:42,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:44:42,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:44:42,430 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:44:42,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:44:42,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:44:42,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:44:42,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:44:42,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:44:42,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:44:42,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:44:42,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:42,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:44:42,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:44:42,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:44:42,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:44:42,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:44:42,434 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:44:42,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:44:42,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:44:42,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:44:42,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2021-12-21 16:44:42,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:44:42,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:44:42,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:44:42,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:44:42,655 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:44:42,656 INFO L432 ainManager$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--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-21 16:44:42,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192bb998/ae93dbf1acbd4fa4ba59d1263f3e2ac0/FLAG54097c05a [2021-12-21 16:44:43,328 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:44:43,329 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--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-21 16:44:43,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192bb998/ae93dbf1acbd4fa4ba59d1263f3e2ac0/FLAG54097c05a [2021-12-21 16:44:43,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192bb998/ae93dbf1acbd4fa4ba59d1263f3e2ac0 [2021-12-21 16:44:43,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:44:43,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:44:43,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:43,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:44:43,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:44:43,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:43" (1/1) ... [2021-12-21 16:44:43,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a89397f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:43, skipping insertion in model container [2021-12-21 16:44:43,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:43" (1/1) ... [2021-12-21 16:44:43,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:44:43,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:44:44,946 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--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2021-12-21 16:44:44,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:44,993 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:44:45,134 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--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2021-12-21 16:44:45,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:45,250 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:44:45,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45 WrapperNode [2021-12-21 16:44:45,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:45,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:45,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:44:45,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:44:45,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,450 INFO L137 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3651 [2021-12-21 16:44:45,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:45,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:44:45,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:44:45,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:44:45,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:44:45,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:44:45,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:44:45,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:44:45,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (1/1) ... [2021-12-21 16:44:45,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:45,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:44:45,652 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) [2021-12-21 16:44:45,660 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 [2021-12-21 16:44:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2021-12-21 16:44:45,696 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2021-12-21 16:44:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:44:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:44:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:44:45,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:44:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:44:45,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:44:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 16:44:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 16:44:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:44:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:44:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:44:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:44:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:44:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:44:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 16:44:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 16:44:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:44:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:44:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:44:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:44:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:44:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:44:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-21 16:44:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-21 16:44:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2021-12-21 16:44:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2021-12-21 16:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2021-12-21 16:44:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2021-12-21 16:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 16:44:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 16:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2021-12-21 16:44:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2021-12-21 16:44:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-21 16:44:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-21 16:44:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:44:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2021-12-21 16:44:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2021-12-21 16:44:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 16:44:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 16:44:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 16:44:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 16:44:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:44:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:44:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:44:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:44:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 16:44:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 16:44:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:44:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:44:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:44:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:44:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-21 16:44:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-21 16:44:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-21 16:44:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-21 16:44:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-21 16:44:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-21 16:44:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:44:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:44:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-21 16:44:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-21 16:44:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:44:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:44:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:44:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:44:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-21 16:44:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-21 16:44:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2021-12-21 16:44:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2021-12-21 16:44:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-12-21 16:44:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-12-21 16:44:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:44:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:44:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:44:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:44:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2021-12-21 16:44:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2021-12-21 16:44:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-21 16:44:45,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-21 16:44:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:44:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:44:45,708 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:44:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 16:44:45,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 16:44:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:44:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:44:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2021-12-21 16:44:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2021-12-21 16:44:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2021-12-21 16:44:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2021-12-21 16:44:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:44:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:44:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2021-12-21 16:44:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2021-12-21 16:44:45,710 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-21 16:44:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-21 16:44:45,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 16:44:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 16:44:45,710 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2021-12-21 16:44:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2021-12-21 16:44:45,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:44:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:44:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:44:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2021-12-21 16:44:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2021-12-21 16:44:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-21 16:44:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-21 16:44:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:44:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:44:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2021-12-21 16:44:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2021-12-21 16:44:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:44:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:44:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2021-12-21 16:44:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2021-12-21 16:44:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2021-12-21 16:44:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2021-12-21 16:44:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2021-12-21 16:44:45,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2021-12-21 16:44:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:44:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2021-12-21 16:44:45,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2021-12-21 16:44:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:44:45,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:44:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:44:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:44:45,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:44:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:44:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:44:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:44:45,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:44:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2021-12-21 16:44:45,714 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2021-12-21 16:44:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2021-12-21 16:44:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2021-12-21 16:44:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2021-12-21 16:44:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2021-12-21 16:44:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 16:44:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 16:44:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-21 16:44:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-21 16:44:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2021-12-21 16:44:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2021-12-21 16:44:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-21 16:44:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-21 16:44:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:44:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-21 16:44:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-21 16:44:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:44:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:44:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2021-12-21 16:44:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2021-12-21 16:44:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-21 16:44:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-21 16:44:46,168 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:44:46,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:44:46,530 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:44:47,761 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 16:44:47,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616; [2021-12-21 16:44:47,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616); [2021-12-21 16:44:47,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret657#1 && #t~ret657#1 <= 9223372036854775807;havoc #t~ret657#1; [2021-12-21 16:44:47,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret657#1 := schedule_timeout_interruptible(1); srcloc: null [2021-12-21 16:44:47,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2021-12-21 16:44:47,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2021-12-21 16:44:47,949 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:44:47,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:44:47,965 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 16:44:47,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:47 BoogieIcfgContainer [2021-12-21 16:44:47,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:44:47,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:44:47,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:44:47,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:44:47,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:44:43" (1/3) ... [2021-12-21 16:44:47,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f7a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:47, skipping insertion in model container [2021-12-21 16:44:47,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:45" (2/3) ... [2021-12-21 16:44:47,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f7a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:47, skipping insertion in model container [2021-12-21 16:44:47,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:47" (3/3) ... [2021-12-21 16:44:47,975 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-21 16:44:47,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:44:47,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:44:48,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:44:48,014 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 [2021-12-21 16:44:48,014 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:44:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2021-12-21 16:44:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-21 16:44:48,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:48,079 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:48,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash 740841460, now seen corresponding path program 1 times [2021-12-21 16:44:48,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:48,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070600625] [2021-12-21 16:44:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:48,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:44:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:44:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:44:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 16:44:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 16:44:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:44:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-21 16:44:48,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:48,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070600625] [2021-12-21 16:44:48,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070600625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:48,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:48,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:44:48,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882021684] [2021-12-21 16:44:48,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:48,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:44:48,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:48,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:44:48,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:44:48,792 INFO L87 Difference]: Start difference. First operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:44:52,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:52,200 INFO L93 Difference]: Finished difference Result 3398 states and 5191 transitions. [2021-12-21 16:44:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:44:52,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2021-12-21 16:44:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:52,227 INFO L225 Difference]: With dead ends: 3398 [2021-12-21 16:44:52,228 INFO L226 Difference]: Without dead ends: 1751 [2021-12-21 16:44:52,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:52,284 INFO L933 BasicCegarLoop]: 2023 mSDtfsCounter, 2012 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 2592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2592 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:52,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2053 Valid, 4016 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2592 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-21 16:44:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-21 16:44:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1606. [2021-12-21 16:44:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1011 states have (on average 1.3422354104846685) internal successors, (1357), 1055 states have internal predecessors, (1357), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2021-12-21 16:44:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2408 transitions. [2021-12-21 16:44:52,448 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2408 transitions. Word has length 167 [2021-12-21 16:44:52,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:52,448 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 2408 transitions. [2021-12-21 16:44:52,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:44:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2408 transitions. [2021-12-21 16:44:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-21 16:44:52,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:52,457 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:52,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:44:52,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:52,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:52,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1077778858, now seen corresponding path program 1 times [2021-12-21 16:44:52,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:52,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858598156] [2021-12-21 16:44:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:52,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:44:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:44:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:44:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 16:44:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 16:44:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:44:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-21 16:44:52,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:52,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858598156] [2021-12-21 16:44:52,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858598156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:52,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:52,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:44:52,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862014357] [2021-12-21 16:44:52,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:52,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:44:52,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:52,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:44:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:52,850 INFO L87 Difference]: Start difference. First operand 1606 states and 2408 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:00,065 INFO L93 Difference]: Finished difference Result 5068 states and 7677 transitions. [2021-12-21 16:45:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:45:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2021-12-21 16:45:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:00,088 INFO L225 Difference]: With dead ends: 5068 [2021-12-21 16:45:00,088 INFO L226 Difference]: Without dead ends: 3484 [2021-12-21 16:45:00,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:45:00,101 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 6255 mSDsluCounter, 6713 mSDsCounter, 0 mSdLazyCounter, 6010 mSolverCounterSat, 7104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6507 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 13114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7104 IncrementalHoareTripleChecker+Valid, 6010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:00,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6507 Valid, 9234 Invalid, 13114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7104 Valid, 6010 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-12-21 16:45:00,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-12-21 16:45:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3184. [2021-12-21 16:45:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 2004 states have (on average 1.342814371257485) internal successors, (2691), 2096 states have internal predecessors, (2691), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1006 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-12-21 16:45:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4780 transitions. [2021-12-21 16:45:00,271 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4780 transitions. Word has length 167 [2021-12-21 16:45:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:00,272 INFO L470 AbstractCegarLoop]: Abstraction has 3184 states and 4780 transitions. [2021-12-21 16:45:00,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4780 transitions. [2021-12-21 16:45:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-21 16:45:00,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:00,284 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:00,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:45:00,285 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash -198068825, now seen corresponding path program 1 times [2021-12-21 16:45:00,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:00,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976428902] [2021-12-21 16:45:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:00,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:45:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:45:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:45:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 16:45:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 16:45:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 16:45:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 16:45:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 16:45:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-21 16:45:00,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:00,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976428902] [2021-12-21 16:45:00,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976428902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:00,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:00,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:00,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683005715] [2021-12-21 16:45:00,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:00,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:00,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:00,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:00,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:00,627 INFO L87 Difference]: Start difference. First operand 3184 states and 4780 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:08,092 INFO L93 Difference]: Finished difference Result 10100 states and 15305 transitions. [2021-12-21 16:45:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:45:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2021-12-21 16:45:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:08,141 INFO L225 Difference]: With dead ends: 10100 [2021-12-21 16:45:08,141 INFO L226 Difference]: Without dead ends: 6938 [2021-12-21 16:45:08,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:45:08,159 INFO L933 BasicCegarLoop]: 2427 mSDtfsCounter, 5332 mSDsluCounter, 7291 mSDsCounter, 0 mSdLazyCounter, 6682 mSolverCounterSat, 5565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5583 SdHoareTripleChecker+Valid, 9718 SdHoareTripleChecker+Invalid, 12247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5565 IncrementalHoareTripleChecker+Valid, 6682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:08,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5583 Valid, 9718 Invalid, 12247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5565 Valid, 6682 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-21 16:45:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2021-12-21 16:45:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6346. [2021-12-21 16:45:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 3997 states have (on average 1.3427570678008507) internal successors, (5367), 4180 states have internal predecessors, (5367), 2076 states have call successors, (2076), 273 states have call predecessors, (2076), 272 states have return successors, (2089), 2004 states have call predecessors, (2089), 2075 states have call successors, (2089) [2021-12-21 16:45:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9532 transitions. [2021-12-21 16:45:08,493 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9532 transitions. Word has length 169 [2021-12-21 16:45:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:08,494 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 9532 transitions. [2021-12-21 16:45:08,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9532 transitions. [2021-12-21 16:45:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-21 16:45:08,499 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:08,500 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:08,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:45:08,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2105470557, now seen corresponding path program 1 times [2021-12-21 16:45:08,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:08,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562411357] [2021-12-21 16:45:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:08,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:45:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:45:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:45:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:45:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:45:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:45:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:45:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:45:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-21 16:45:08,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:08,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562411357] [2021-12-21 16:45:08,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562411357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:08,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:08,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:08,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363568935] [2021-12-21 16:45:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:08,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:08,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:08,777 INFO L87 Difference]: Start difference. First operand 6346 states and 9532 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:15,978 INFO L93 Difference]: Finished difference Result 20174 states and 30570 transitions. [2021-12-21 16:45:15,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:45:15,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2021-12-21 16:45:15,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:16,050 INFO L225 Difference]: With dead ends: 20174 [2021-12-21 16:45:16,051 INFO L226 Difference]: Without dead ends: 13850 [2021-12-21 16:45:16,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:45:16,084 INFO L933 BasicCegarLoop]: 2430 mSDtfsCounter, 6519 mSDsluCounter, 6634 mSDsCounter, 0 mSdLazyCounter, 5920 mSolverCounterSat, 7185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6770 SdHoareTripleChecker+Valid, 9064 SdHoareTripleChecker+Invalid, 13105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7185 IncrementalHoareTripleChecker+Valid, 5920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:16,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6770 Valid, 9064 Invalid, 13105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7185 Valid, 5920 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-21 16:45:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13850 states. [2021-12-21 16:45:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13850 to 12672. [2021-12-21 16:45:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12672 states, 7985 states have (on average 1.3421415153412648) internal successors, (10717), 8349 states have internal predecessors, (10717), 4141 states have call successors, (4141), 546 states have call predecessors, (4141), 545 states have return successors, (4178), 4000 states have call predecessors, (4178), 4140 states have call successors, (4178) [2021-12-21 16:45:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12672 states to 12672 states and 19036 transitions. [2021-12-21 16:45:16,766 INFO L78 Accepts]: Start accepts. Automaton has 12672 states and 19036 transitions. Word has length 168 [2021-12-21 16:45:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:16,767 INFO L470 AbstractCegarLoop]: Abstraction has 12672 states and 19036 transitions. [2021-12-21 16:45:16,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 12672 states and 19036 transitions. [2021-12-21 16:45:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-21 16:45:16,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:16,778 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:16,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:45:16,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1604410682, now seen corresponding path program 1 times [2021-12-21 16:45:16,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:16,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049566472] [2021-12-21 16:45:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:16,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:45:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:45:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:16,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 16:45:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:45:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:45:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 16:45:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 16:45:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 16:45:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-21 16:45:17,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:17,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049566472] [2021-12-21 16:45:17,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049566472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:17,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:17,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:17,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752526440] [2021-12-21 16:45:17,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:17,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:17,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:17,022 INFO L87 Difference]: Start difference. First operand 12672 states and 19036 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:24,833 INFO L93 Difference]: Finished difference Result 40084 states and 60722 transitions. [2021-12-21 16:45:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:45:24,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2021-12-21 16:45:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:24,957 INFO L225 Difference]: With dead ends: 40084 [2021-12-21 16:45:24,958 INFO L226 Difference]: Without dead ends: 27434 [2021-12-21 16:45:25,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:45:25,016 INFO L933 BasicCegarLoop]: 2207 mSDtfsCounter, 5670 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 6362 mSolverCounterSat, 5894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 9109 SdHoareTripleChecker+Invalid, 12256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5894 IncrementalHoareTripleChecker+Valid, 6362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:25,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5921 Valid, 9109 Invalid, 12256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5894 Valid, 6362 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-21 16:45:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27434 states. [2021-12-21 16:45:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27434 to 25165. [2021-12-21 16:45:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25165 states, 15854 states have (on average 1.341932635297086) internal successors, (21275), 16572 states have internal predecessors, (21275), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2021-12-21 16:45:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25165 states to 25165 states and 37816 transitions. [2021-12-21 16:45:26,246 INFO L78 Accepts]: Start accepts. Automaton has 25165 states and 37816 transitions. Word has length 170 [2021-12-21 16:45:26,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:26,246 INFO L470 AbstractCegarLoop]: Abstraction has 25165 states and 37816 transitions. [2021-12-21 16:45:26,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-21 16:45:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand 25165 states and 37816 transitions. [2021-12-21 16:45:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-21 16:45:26,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:26,254 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:26,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:45:26,255 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:26,255 INFO L85 PathProgramCache]: Analyzing trace with hash 482038512, now seen corresponding path program 1 times [2021-12-21 16:45:26,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444912309] [2021-12-21 16:45:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:26,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:45:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:45:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:45:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 16:45:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:45:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 16:45:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:45:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 16:45:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 16:45:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-21 16:45:26,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:26,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444912309] [2021-12-21 16:45:26,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444912309] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:45:26,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562296714] [2021-12-21 16:45:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:26,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:26,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:26,532 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) [2021-12-21 16:45:26,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 16:45:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:27,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 2196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:45:27,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:45:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-12-21 16:45:27,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:45:27,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562296714] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:27,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:45:27,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-21 16:45:27,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760996918] [2021-12-21 16:45:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:27,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:45:27,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:45:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:45:27,264 INFO L87 Difference]: Start difference. First operand 25165 states and 37816 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:45:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:28,088 INFO L93 Difference]: Finished difference Result 50473 states and 75875 transitions. [2021-12-21 16:45:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:45:28,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2021-12-21 16:45:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:28,203 INFO L225 Difference]: With dead ends: 50473 [2021-12-21 16:45:28,204 INFO L226 Difference]: Without dead ends: 25330 [2021-12-21 16:45:28,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:45:28,307 INFO L933 BasicCegarLoop]: 2409 mSDtfsCounter, 9 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:28,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4808 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:45:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25330 states. [2021-12-21 16:45:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25330 to 25180. [2021-12-21 16:45:29,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25180 states, 15869 states have (on average 1.3416094271850778) internal successors, (21290), 16587 states have internal predecessors, (21290), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2021-12-21 16:45:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25180 states to 25180 states and 37831 transitions. [2021-12-21 16:45:29,656 INFO L78 Accepts]: Start accepts. Automaton has 25180 states and 37831 transitions. Word has length 180 [2021-12-21 16:45:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:29,656 INFO L470 AbstractCegarLoop]: Abstraction has 25180 states and 37831 transitions. [2021-12-21 16:45:29,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:45:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25180 states and 37831 transitions. [2021-12-21 16:45:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-21 16:45:29,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:29,665 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:29,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 16:45:29,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-21 16:45:29,889 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2079713895, now seen corresponding path program 1 times [2021-12-21 16:45:29,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:29,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336835832] [2021-12-21 16:45:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:29,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:29,946 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 16:45:29,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123800466] [2021-12-21 16:45:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:29,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:29,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:29,948 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) [2021-12-21 16:45:29,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 16:45:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 16:45:30,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:45:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-21 16:45:30,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:45:30,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336835832] [2021-12-21 16:45:30,743 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 16:45:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123800466] [2021-12-21 16:45:30,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123800466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:30,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:30,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:45:30,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199208560] [2021-12-21 16:45:30,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:30,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:45:30,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:30,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:45:30,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:45:30,744 INFO L87 Difference]: Start difference. First operand 25180 states and 37831 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:45:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:32,118 INFO L93 Difference]: Finished difference Result 63018 states and 94683 transitions. [2021-12-21 16:45:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 16:45:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2021-12-21 16:45:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:32,275 INFO L225 Difference]: With dead ends: 63018 [2021-12-21 16:45:32,275 INFO L226 Difference]: Without dead ends: 37860 [2021-12-21 16:45:32,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-21 16:45:32,372 INFO L933 BasicCegarLoop]: 3465 mSDtfsCounter, 2428 mSDsluCounter, 16236 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 19701 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:32,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2432 Valid, 19701 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:45:32,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37860 states. [2021-12-21 16:45:33,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37860 to 37711. [2021-12-21 16:45:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37711 states, 23776 states have (on average 1.3424461641991925) internal successors, (31918), 24860 states have internal predecessors, (31918), 12303 states have call successors, (12303), 1624 states have call predecessors, (12303), 1631 states have return successors, (12486), 11886 states have call predecessors, (12486), 12302 states have call successors, (12486) [2021-12-21 16:45:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37711 states to 37711 states and 56707 transitions. [2021-12-21 16:45:34,286 INFO L78 Accepts]: Start accepts. Automaton has 37711 states and 56707 transitions. Word has length 184 [2021-12-21 16:45:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:34,287 INFO L470 AbstractCegarLoop]: Abstraction has 37711 states and 56707 transitions. [2021-12-21 16:45:34,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:45:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand 37711 states and 56707 transitions. [2021-12-21 16:45:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-21 16:45:34,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:34,299 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:34,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 16:45:34,512 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,SelfDestructingSolverStorable6 [2021-12-21 16:45:34,512 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1028835409, now seen corresponding path program 1 times [2021-12-21 16:45:34,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:34,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292630034] [2021-12-21 16:45:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:34,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:34,561 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 16:45:34,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852424964] [2021-12-21 16:45:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:34,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:34,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:34,562 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) [2021-12-21 16:45:34,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 16:45:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:35,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 16:45:35,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:45:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-21 16:45:35,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:45:35,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292630034] [2021-12-21 16:45:35,475 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 16:45:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852424964] [2021-12-21 16:45:35,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852424964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:35,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:35,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:45:35,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122745813] [2021-12-21 16:45:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:35,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:45:35,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:35,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:45:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:45:35,476 INFO L87 Difference]: Start difference. First operand 37711 states and 56707 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:45:37,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:37,229 INFO L93 Difference]: Finished difference Result 88133 states and 132481 transitions. [2021-12-21 16:45:37,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 16:45:37,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2021-12-21 16:45:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:37,641 INFO L225 Difference]: With dead ends: 88133 [2021-12-21 16:45:37,642 INFO L226 Difference]: Without dead ends: 50444 [2021-12-21 16:45:37,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-21 16:45:37,751 INFO L933 BasicCegarLoop]: 3752 mSDtfsCounter, 2428 mSDsluCounter, 17372 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 21124 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:37,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2432 Valid, 21124 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:45:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50444 states. [2021-12-21 16:45:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50444 to 50274. [2021-12-21 16:45:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50274 states, 31703 states have (on average 1.3426489606661831) internal successors, (42566), 33169 states have internal predecessors, (42566), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2188 states have return successors, (16667), 15821 states have call predecessors, (16667), 16381 states have call successors, (16667) [2021-12-21 16:45:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50274 states to 50274 states and 75615 transitions. [2021-12-21 16:45:40,013 INFO L78 Accepts]: Start accepts. Automaton has 50274 states and 75615 transitions. Word has length 185 [2021-12-21 16:45:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:40,014 INFO L470 AbstractCegarLoop]: Abstraction has 50274 states and 75615 transitions. [2021-12-21 16:45:40,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:45:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 50274 states and 75615 transitions. [2021-12-21 16:45:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 16:45:40,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:40,030 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:40,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 16:45:40,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:40,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1462652096, now seen corresponding path program 1 times [2021-12-21 16:45:40,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:40,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544423413] [2021-12-21 16:45:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:40,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:40,303 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 16:45:40,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709414580] [2021-12-21 16:45:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:40,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:40,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:40,305 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) [2021-12-21 16:45:40,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 16:45:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:40,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 16:45:41,002 INFO L286 TraceCheckSpWp]: Computing forward predicates...